<h2>What is PLC</h2>Power Line Communication (PLC) is a technology that transmits data through the same cables already used for supplying electricity. In other words, you use the same power cable not only to power luminaires but also to control them — with no need for additional wiring or radio equipment.<h2>How PLC works&nbsp;</h2>At the heart of PLC is signal modulation: a data signal is overlaid onto the existing electrical waveform without disrupting the base frequency. Simply put, we don’t change the supply voltage — instead, we modulate the shape of the wave by adding controlled high-frequency oscillations. These modulations are picked up by receivers in the luminaires and interpreted as commands (e.g., on/off, dimming, switching scenes). It works similarly to how sound is transmitted over radio waves: the core energy powers the system, while the modulation carries the data.<h2>Where PLC is used&nbsp;</h2>The technology is ideal for centralized lighting systems, where:<ul><li>All luminaires are powered from a single source (such as one control cabinet).</li><li>A single cable can serve 50, 100 or more lighting poles.</li><li>Power and control signals travel over the same wire, making installation as simple and cost-efficient as possible.</li></ul>Typical scenario: a new city street or highway where all lighting is wired to a central point, and the cable is used only for lighting.

<h2>Why PLC can’t always be used&nbsp;</h2>The technology performs best under two key conditions: 1. Centralized power supply — luminaires must be connected to one cabinet. 2. Cable is used only for lighting — without extra loads like:<ul><li>billboards</li><li>traffic lights</li><li>public outlets</li><li>pumps, etc.</li></ul>When other loads are added to the circuit, they interfere with the PLC signal and distort the modulation — leading to control failures. However, there is a technical solution that can help mitigate this issue in many cases — a noise filter. It eliminates interference and stabilizes the PLC signal when non-lighting devices are present on the line.&nbsp;It's a common misconception that noise filters are always required. In practice, they are only necessary when:<ul><li>More than 15–20% of the connected load comes from third-party devices</li><li>The line includes high-interference equipment, such as LED screens or industrial pumps</li></ul>

<h2>PLC vs Radio in Street Lighting</h2><h3>When to choose PLC</h3><ul><li>All lights share a common power line</li><li>There are no third-party devices connected</li><li>You need an affordable, stable control system</li></ul><h3>When to choose Radio</h3><ul><li>Each pole is powered independently</li><li>The site has a complex or historic infrastructure</li><li>You can’t guarantee what else is connected to the line &nbsp;</li></ul><h3>Every project Is unique</h3>While <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/solutions/individual-plc-control">PLC is a reliable and cost-effective option</a>, there’s no universal solution. Choosing between <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/solutions/individual-plc-control">PLC</a>, <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/solutions/individual-wireless-control">radio</a>, or <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/solutions/individual-wireless-control">GSM</a> depends on:<ul><li>Site architecture</li><li>Number and density of luminaires</li><li>Existing infrastructure</li><li>Control and scheduling needs &nbsp;</li></ul>At DITRA Solutions, we tailor the technology to fit each project — ensuring the system is as stable, efficient, and long-lasting as possible.&nbsp;

<span style="-webkit-text-stroke-width:0px;caret-color:rgb(0, 0, 0);font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;orphans:auto;text-align:start;text-decoration:none;text-indent:0px;text-transform:none;white-space:pre-wrap;widows:auto;word-spacing:0px;">Lighting control without extra infrastructure. That’s the PLC advantage

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<h2>DITRA LiteLINE – Expansion Module for Remote Control of PLC-Enabled Devices</h2>DITRA LiteLINE is an expansion module designed for remote management of devices equipped with PLC (Power Line Communication) technology.Utilizing PLC technology, it enables seamless luminaire control and communicates with cabinet controllers via an RS-485 (MODBUS) interface.The unit operates on a 100-240 V power supply and is configured remotely through <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/software">DITRA software</a> via <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/products/category/SegmentControllers">cabinet controllers</a>.Engineered for DIN rail mounting in power supply cabinets, it offers a compact and reliable solution for street lighting management.

PLC (Power Line Communication) Gateway for Street Lighting Control and Management

DITRA LiteLINE

<h3>The Wire LiteLINE Node is a wired PLC (Power Line Communication) control and dimming module designed for managing a single luminaire and installed inside the lighting fixture.</h3>It is fully compatible with third-party motion sensors.The Wire LiteLINE Node supports multiple interfaces, including DALI, DALI 2.0, PWM, 1-10V, and 0-10V, as well as independent load control (on/off).Operating on a voltage range of 100-240 V, the device supports luminaires with power ratings of up to 1000 W.Control is provided individually through the PLC gateway DITRA LiteLINE and central controllers <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCorePro">DITRA CORE PRO</a>, <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCorePro2">PRO-2</a>, or <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCoreLight">LIGHT</a>. LiteLINE technology operates at a frequency of 132.5 kHz, in compliance with CENELEC EN 50065-1 (band-C) standards.The unit is designed for flexible installation inside a luminaire, within its housing, or inside a lighting pole using wired connections. It also features an IP66 rating for dust and moisture protection.

PLC (Power Line Communication) Street Light Luminaire Control Node with Wire connector

Wire LiteLINE Node

<h2>NEMA LiteLINE Node is a module designed for individual control, diagnostics, and dimming of luminaires.</h2>NEMA LiteLINE Node functions as a PLC (Power Line Communication) control and dimming module, suitable for managing a single luminaire or a group of luminaires.NEMA LiteLINE Node is compatible with third-party motion sensors.It supports DALI, DALI 2.0, PWM, 1-10V, 0-10V interfaces, and offers individual load control (on/off).The unit operates on 100-240 V, supports luminaires with power ratings up to 1000 W.NEMA LiteLINE Node is managed individually through PLC gateway <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraLiteLine">Ditra LiteLINE</a> and central controllers <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCorePro">DITRA CORE PRO</a>, <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCorePro2">PRO-2</a>, <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCoreLight">LIGHT</a>. LiteLINE technology operates within the 132.5 kHz frequency range, complying with CENELEC EN 50065-1 (band-C).The device is designed for installation on luminaires using a NEMA socket and features an IP66 rating for dust and moisture protection.

PLC (Power Line Communication) NEMA Street Light Luminaire Control Node

NEMA LiteLINE Node

<h2>The Screw LiteLINE Node is a PLC-based control and dimming module designed for managing individual luminaires or groups of luminaires.</h2>It is compatible with third-party motion sensors and supports DALI, DALI 2.0, PWM, 1-10V, and 0-10V interfaces, along with individual load control (on/off).The unit operates on 100-240 V and supports luminaires with power ratings up to 1000 W.The Screw LiteLINE Node is controlled individually through PLC Gateway <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraLiteLine">DITRA LiteLINE</a> and central controllers <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCorePro">DITRA CORE PRO</a>, <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCorePro2">PRO-2</a>, <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCoreLight">LIGHT</a>. The LiteLINE technology operates at 132.5 kHz, compliant with CENELEC EN 50065-1 (band-C) standards.Designed for installation inside luminaires, luminaire housings, or lighting poles using screw terminals, the device features IP66-rated dust and moisture protection, ensuring durability in challenging environments.

PLC (Power Line Communication) Embedded Street Light Luminaire Controller with Screw Terminal Connection

Screw LiteLINE Node

Lighting control without extra infrastructure. That’s the PLC advantage

PLC in Street lighting: How it works and when to use it

<h3>DITRA Solutions at Light + Building Frankfurt 2026. Hall 8.0 Stand H61</h3>DITRA Solutions will take part in&nbsp;<a target="_blank" rel="noopener noreferrer" href="https://light-building.messefrankfurt.com/frankfurt/en/exhibitor-search.detail.html/ditraco---digital-transformation-control-lda.html#exhibitorheadline">Light + Building Frankfurt 2026&nbsp;</a>— one of Europe’s key exhibitions for lighting, building automation, and connected infrastructure.Light + Building is a central platform for professionals working with architectural lighting, smart buildings, and urban technologies. The exhibition brings together manufacturers, integrators, engineers, and city stakeholders focused on efficient, scalable, and interoperable solutions.<h3>&nbsp;What We Will Showcase</h3>At Light + Building Frankfurt, DITRA will present its smart lighting control ecosystem, covering street, architectural, and mixed-use projects.Visitors will be able to explore:<ul><li>Cabinet-level and segment controllers for centralized street lighting management.</li><li>Wired and wireless individual luminaire control nodes (PLC, Radio, GSM).</li><li>DALI, DMX, and Art-Net controllers for architectural and façade lighting.</li><li>Software tools for configuration, scheduling, monitoring, and diagnostics.</li><li>Smart City integration via open API for data exchange with external systems</li></ul>The focus is on practical, real-world deployment: reliable hardware, flexible system architecture, and long-term scalability.<h3>Solutions for Urban and Architectural Projects</h3>DITRA technologies are designed for a wide range of applications, including streets and highways, residential areas, parks, tunnels, industrial zones, public spaces, and architectural landmarks.Our systems support both infrastructure-oriented projects and visually complex lighting scenarios — allowing cities and developers to manage lighting assets efficiently while maintaining design freedom.<h3>Meet Us in Frankfurt</h3>We invite integrators, lighting designers, EPCs, and project owners to meet the <a target="_blank" rel="noopener noreferrer" href="https://light-building.messefrankfurt.com/frankfurt/en/exhibitor-search.detail.html/ditraco---digital-transformation-control-lda.html#exhibitorheadline">DITRA team at Light + Building Frankfurt 2026.</a>At the stand, we will discuss system architecture, integration scenarios, and ongoing projects, and demonstrate how DITRA solutions can be adapted to specific technical and operational requirements.

JOIN US AT LIGHT+ BUILDING from 8 to 13 March 2026 in Frankfurt am Main! Hall 8.0 Stand H61

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Join us at Light+ Building in Frankfurt am Main 2026!

Thru DMX is a hardware-level pass-through function that allows a DMX signal to continue along the line even if a device fails or loses power. It is used in professional DMX installations to ensure uninterrupted signal transmission in stage, architectural, and media façade lighting systems.In linear DMX networks, a single failed or unpowered device can interrupt the signal for all downstream fixtures. This creates a single point of failure that can stop an entire show or lighting scene. Thru DMX eliminates this risk by providing a direct signal bypass that works independently of device electronics.In this article, you will learn:<ul><li>what Thru DMX is and how the pass-through function works,</li><li>why DMX signal continuity is critical in professional installations,</li><li>where Thru DMX is used in real-world lighting projects,</li><li>how Thru DMX is implemented in DMX splitters and distribution equipment.</li></ul><h2>What is Thru DMX in simple terms?</h2>The Thru DMX function (from “through,” often abbreviated as Thru) allows the DMX signal to be passed directly onward without processing or amplification, bypassing the splitter’s electronics. In other words, the signal goes through the device as if it weren’t in the chain at all. Think of it like a water pipe: a regular splitter is like a valve that takes water (signal), filters it, amplifies the flow, and distributes it to multiple pipes. Thru DMX is just a straight piece of pipe connecting the input to the output directly. Even if the “valve” fails, water will still flow through the pipe.

<h3>Why is this important?</h3>In a standard linear DMX network, devices are connected in series. This is convenient but vulnerable: if one device in the chain shuts down, burns out, or loses power, everything after it will lose the signal.Thru DMX solves this by working like a bypass: if a device with Thru DMX fails, the signal will still continue along the DMX line.&nbsp;This provides:<ul><li>Increased overall system reliability</li><li>Resistance to single-device failures</li><li>Safety during “hot” equipment connection or replacement</li><li>Flexibility in building and expanding the network&nbsp;</li></ul><h2>Where is Thru DMX used?</h2><ul><li>On stage and in theatres — when the show cannot stop even for a second</li><li>In architectural lighting — especially in installations with limited access</li><li>At temporary festival venues — where the configuration changes often</li><li>In film and TV studios — where DMX controls not just lighting but also sets, screens, and effects</li></ul>

<h2>How is Thru DMX implemented in splitters?</h2>Thru DMX is implemented at the hardware level — without involving device logic, controllers, or firmware — which makes it especially reliable.In <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/entertainment/products/category/splitters">DITRA Solutions splitters</a>, as in most professional models, the DMX input is always a single port. From this port:<ul><li>The signal is sent directly to the Thru DMX output, bypassing the device circuitry, without delay or processing.</li><li>In parallel, it is sent to the internal board, where it’s amplified, galvanically isolated, and distributed to the standard DMX outputs.</li></ul>This means the input signal is split into two paths inside the device:<ul><li>One “clean” and direct — via Thru DMX.</li><li>The other — amplified and split — to the other outputs.</li></ul>Thru DMX is not an additional input or an independent line. It’s always linked to the device’s single input, making it ideal for continuing the main signal chain — for example, feeding DMX to the next splitter or a distant part of the installation.&nbsp;

<h2>Which DITRA Solutions devices support Thru DMX?</h2><ul style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;color:rgba(0, 0, 0, 0.9);font-family:-apple-system, system-ui, system-ui, &quot;Segoe UI&quot;, Roboto, &quot;Helvetica Neue&quot;, &quot;Fira Sans&quot;, Ubuntu, Oxygen, &quot;Oxygen Sans&quot;, Cantarell, &quot;Droid Sans&quot;, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;, &quot;Segoe UI Emoji&quot;, &quot;Segoe UI Symbol&quot;, &quot;Lucida Grande&quot;, Helvetica, Arial, sans-serif;font-size:16px;font-style:normal;font-variant-caps:normal;font-variant-ligatures:normal;font-weight:400;letter-spacing:normal;line-height:var(--line-height-open);margin-bottom:var(--spacing-four-x);orphans:2;padding-left:var(--spacing-four-x);text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-decoration:none;text-indent:0px;text-transform:none;vertical-align:var(--artdeco-reset-base-vertical-align-baseline);white-space:normal;widows:2;word-spacing:0px;"><li style="border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;font-family:var(--artdeco-reset-typography-font-family-sans);font-size:var(--artdeco-reset-base-font-size-hundred-percent);margin-bottom:var(--spacing-one-x);padding-left:var(--spacing-one-x);vertical-align:var(--artdeco-reset-base-vertical-align-baseline);"><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/SplitterPrime"><strong style="border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;font-family:var(--artdeco-reset-typography-font-family-sans);font-size:var(--artdeco-reset-base-font-size-hundred-percent);font-weight:var(--artdeco-reset-typography-font-weight-bold);margin:var(--artdeco-reset-base-margin-zero);outline:var(--artdeco-reset-base-outline-zero);padding:var(--artdeco-reset-base-padding-zero);vertical-align:var(--artdeco-reset-base-vertical-align-baseline);">Splitter Prime</a></li><li style="border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;font-family:var(--artdeco-reset-typography-font-family-sans);font-size:var(--artdeco-reset-base-font-size-hundred-percent);margin-bottom:var(--spacing-one-x);padding-left:var(--spacing-one-x);vertical-align:var(--artdeco-reset-base-vertical-align-baseline);"><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/SplitterDuoPrime"><strong style="border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;font-family:var(--artdeco-reset-typography-font-family-sans);font-size:var(--artdeco-reset-base-font-size-hundred-percent);font-weight:var(--artdeco-reset-typography-font-weight-bold);margin:var(--artdeco-reset-base-margin-zero);outline:var(--artdeco-reset-base-outline-zero);padding:var(--artdeco-reset-base-padding-zero);vertical-align:var(--artdeco-reset-base-vertical-align-baseline);">Splitter Duo Prime</a></li></ul><strong style="border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;font-family:var(--artdeco-reset-typography-font-family-sans);font-size:var(--artdeco-reset-base-font-size-hundred-percent);font-weight:var(--artdeco-reset-typography-font-weight-bold);margin:var(--artdeco-reset-base-margin-zero);outline:var(--artdeco-reset-base-outline-zero);padding:var(--artdeco-reset-base-padding-zero);vertical-align:var(--artdeco-reset-base-vertical-align-baseline);">Both are equipped with a dedicated Thru DMX output, ensuring uninterrupted pass-through signal transmission even if the device fails or loses power. This makes them a reliable choice for critical installations where failure is not an option.<h3>Real-world example</h3><strong style="border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;font-family:var(--artdeco-reset-typography-font-family-sans);font-size:var(--artdeco-reset-base-font-size-hundred-percent);font-weight:var(--artdeco-reset-typography-font-weight-bold);margin:var(--artdeco-reset-base-margin-zero);outline:var(--artdeco-reset-base-outline-zero);padding:var(--artdeco-reset-base-padding-zero);vertical-align:var(--artdeco-reset-base-vertical-align-baseline);">You’re installing building façade lighting. The cable runs from the controller to the first floor, then to the second, then to the third. On the second floor, there’s a splitter. If it fails, everything above the second floor will go dark — the signal won’t reach them. But with a splitter that has Thru DMX, the cable will “bypass” the failed device, and the third floor will keep working.<strong style="border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;font-family:var(--artdeco-reset-typography-font-family-sans);font-size:var(--artdeco-reset-base-font-size-hundred-percent);font-weight:var(--artdeco-reset-typography-font-weight-bold);margin:var(--artdeco-reset-base-margin-zero);outline:var(--artdeco-reset-base-outline-zero);padding:var(--artdeco-reset-base-padding-zero);vertical-align:var(--artdeco-reset-base-vertical-align-baseline);">Thru DMX is simple in concept but extremely valuable in real-world operation. It’s like an emergency exit — you may not use it every day, but when you need it, it can save the entire project. <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/entertainment/products/category/splitters"><strong style="border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;font-family:var(--artdeco-reset-typography-font-family-sans);font-size:var(--artdeco-reset-base-font-size-hundred-percent);font-weight:var(--artdeco-reset-typography-font-weight-bold);margin:var(--artdeco-reset-base-margin-zero);outline:var(--artdeco-reset-base-outline-zero);padding:var(--artdeco-reset-base-padding-zero);vertical-align:var(--artdeco-reset-base-vertical-align-baseline);">DITRA Solutions splitters with Thru DMX </a><strong style="border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;font-family:var(--artdeco-reset-typography-font-family-sans);font-size:var(--artdeco-reset-base-font-size-hundred-percent);font-weight:var(--artdeco-reset-typography-font-weight-bold);margin:var(--artdeco-reset-base-margin-zero);outline:var(--artdeco-reset-base-outline-zero);padding:var(--artdeco-reset-base-padding-zero);vertical-align:var(--artdeco-reset-base-vertical-align-baseline);">are the right choice if you work in a field where reliability and stability are paramount.

The Thru DMX function (from “through,” often abbreviated as Thru) allows the DMX signal to be passed directly onward without processing or amplification, bypassing the splitter’s electronics.

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The Splitter Prime is a professional 1- or 2-channel DMX512 signal distributor designed for reliable control of lighting systems using the DMX512 standard. It supports DMX512 and RDM (ANSI E1.20) protocols, operating with either 1 or 2 inputs to feed 5 or 10 outputs. Connection options include XLR (3-pin/5-pin) or etherCON. The unit features intelligent indication for DMX512 signal presence, active data transmission, and RDM activity, along with an RDM filtering function via a dedicated switch. Additional <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/news/about-thru-dmx">DMX Thru ports</a> allow flexible patching, while automatic mode detection enables seamless switching between single and dual input operation. The Splitter Prime also supports DMX line redundancy for added system reliability. Housed in a compact 1U 19-inch rack-mount chassis with just 110 mm depth, it is suitable for indoor or covered outdoor environments.

Rack-mount DMX512 splitter/booster with 1 or 2 inputs, up to 10 outputs, DMX Thru ports, RDM support, and intelligent signal monitoring

Splitter Prime

<h2>Splitter Duo Prime is a professional two-channel DMX512 signal splitter designed for efficient control of lighting equipment operating on the DMX512 standard.&nbsp;</h2>It supports transmission of DMX512 and RDM (ANSI E1.20) protocols from one or two inputs to five or ten outputs, using XLR (5-pin or 3-pin) or EtherCON connectors.The unit features intelligent indication to display DMX512 signal presence, active data transmission, and detection of RDM (ANSI E1.20) interface signals. A dedicated switch enables RDM protocol filtering when required, and several additional <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/news/about-thru-dmx">DMX THRU </a>ports are provided for extended connectivity.Splitter Duo Prime automatically detects its operating mode (single or dual input) and can operate in DMX line redundancy mode for increased reliability. Its 19-inch rack-mount housing takes up only 1U of space, with a depth of just 110 mm, making it compact and lightweight for flexible installation — including on trusses or in covered venues. Designed for use in positive temperatures, it is suitable for both indoor and sheltered outdoor applications.

Dual-channel DMX512 splitter with RDM support, featuring 2 inputs, up to 10 outputs, 3 pass-through DMX THRU ports, redundancy mode, and intelligent signal indication

Splitter Duo Prime

Why DMX signal continuity is critical in professional setups

Thru DMX: How the pass-through function works and why it’s critical for pro DMX setups

<h2>Street lighting control options explained</h2>Selecting the right control method for street lighting can be complex, with multiple factors to consider: the type of luminaires, infrastructure availability, dimming requirements, or the presence of high-density buildings.To make this process easier, DITRA Solutions has created a clear decision flowchart. By answering a few key questions, you can quickly identify whether your project needs:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/solutions/individual-plc-control">PLC Nodes</a> – the most efficient choice when a reliable power grid is already in place,</li><li><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/solutions/individual-wireless-control">LiWAVE Radio Nodes</a> – ideal for open areas, parks, and historical centers with motion sensor integration, or</li><li><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/solutions/individual-wireless-control">GSM Nodes</a> – perfect for decentralized or remote sites with individual lighting points, or</li><li><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/solutions/zone-group-control">Segment Streetlight Controller</a> – the best option for projects where luminaires can be managed in groups through a central cabinet, providing a cost-effective and reliable solution with GSM/Ethernet access.</li></ul>This structured approach ensures you choose a solution that balances cost, reliability, and performance — tailored to your project’s unique conditions.<h3>Software layer and smart city integration</h3>Beyond the hardware, all these solutions can be monitored, configured, and optimized through our <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/software">street lighting software</a>, providing full visibility, remote management, and seamless integration into modern smart city infrastructures.

Finding the best control solution for street lighting projects can be challenging. Should you use PLC, Radio, or GSM? Our interactive decision tree helps you navigate the options and select the most efficient and cost-effective system for your infrastructure

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<h2>The DITRA CORE PRO-2 is the central controller for segment group control of lighting systems and related power infrastructure.&nbsp;</h2>Acting as the heart of the lighting control system, it provides monitoring and management of all electrical equipment within a cabinet, ensuring reliable operation and complete visibility of the installation.By consolidating lighting groups, meters, sensors, and switching devices into a single controllable node, the CORE PRO-2 enables remote diagnostics, automation, and integration into centralized dispatching systems. All monitoring and control are performed through the DITRA CMS platform, giving operators a single interface for supervision and configuration.The controller communicates with connected devices via RS-485 and CAN interfaces, and links to <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/software">DITRA CMS</a> through Ethernet or 2G/3G/4G cellular networks. A built-in GPS module ensures precise time synchronization and geolocation.With support for both 110/220 V AC and 9–36 V DC power inputs, and compact DIN-rail mounting, the CORE PRO-2 integrates seamlessly into transformer substations and distribution cabinets, providing a dependable foundation for smart street lighting and energy management projects.

High-Performance Segment Controller for Group Street Lighting and Electrical Infrastructure Management

DITRA CORE PRO-2

Key factors that determine the choice of street lighting control &nbsp;

A step-by-step guide to choosing the right control solution for your street lighting project

NEMA street light controllers are standardized, luminaire-mounted devices used to control, monitor, and automate street lighting systems based on the available power and communication infrastructure. Depending on how power supply and data transmission are organized at the site, NEMA controllers can operate using PLC, radio (RF), or cellular technologies such as GSM.In this article, we explain:<ul><li>what a NEMA street light controller is and how it works,</li><li>how to choose between PLC, radio, and GSM NEMA controllers,</li><li>which infrastructure scenarios each control technology is designed for.</li></ul><h2>Communication technologies for NEMA street light controllers</h2>If your luminaire is equipped with a NEMA socket, you don’t need to worry about being limited to just one control method. A NEMA controller can be adapted to your project needs. DITRA Solutions offers three different types of NEMA luminaire controllers — PLC, Radio, GSM — all in the same standard form factor.<h3><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/NemaLiteLineNode">Nema LiteLine Node (PLC)</a></h3>The best solution for projects with an existing power grid. Data is transmitted through the same cable as the power supply — no extra wiring required. Ideal for: — new or dedicated lighting lines designed only for streetlights — projects where minimizing infrastructure costs is important — areas where cabling is already in place and reliableKey features: stable work in areas where wireless control is limited or restricted, lower cost compared to other individual control solutions.Previously, in our article <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/news/PLC-in-Street-lighting">PLC in Street Lighting,</a> we explained when PLC is the best choice and highlighted the key differences between PLC and Radio control.

<h3><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/NemaLiWaveNode">Nema LiWave Node (Radio)</a></h3>Radio-based control with DITRA’s LiWAVE technology. Works on license-free frequencies (868/915 MHz), no SIM cards or cables required. Ideal for: — open areas with low building density, ensuring stable radio signal without interference — sites with cabling restrictions or where cable installation is costly — pedestrian zones, historical centers, and parks, where seamless integration with motion sensors enhances efficiency and comfortKey features: motion sensor integration for adaptive control: sensors can be connected to each pole individually or shared across a group of luminaires, enabling multiple lights to switch on/off based on signals from a single sensor — reducing costs and increasing efficiency.

<h3><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraNemaGSMNode">Nema GSM Node (GSM)</a></h3>Lighting control via mobile network — each luminaire connects with an IoT SIM card. Full autonomy, even in the most remote locations. Ideal for: — single lighting points (crosswalks, parking lots, highways) — areas powered from decentralized sources — areas with a high density of high-rise buildings, such as the central zones of large citiesKey features: dedicated and secure communication channel directly between the lighting nodes and the software platform, advanced 2G/4G/NB-IoT connectivityAll NEMA Nodes feature quick plug-and-play installation into the NEMA socket, motion sensor input, IP66 dust and water protection, and seamless configuration and monitoring via DITRA software - the choice of technology depends only on your project.Whether your project needs a NEMA street light controller for highways and urban roads, a flexible NEMA controller for Smart City integration, or a reliable NEMA luminaire controller for individual fixtures — DITRA Solutions provides the right solution.

<span style="background-color:rgb(255,255,255);color:rgba(0,0,0,0.9);font-family:-apple-system, system-ui, system-ui, &quot;Segoe UI&quot;, Roboto, &quot;Helvetica Neue&quot;, &quot;Fira Sans&quot;, Ubuntu, Oxygen, &quot;Oxygen Sans&quot;, Cantarell, &quot;Droid Sans&quot;, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;, &quot;Segoe UI Emoji&quot;, &quot;Segoe UI Symbol&quot;, &quot;Lucida Grande&quot;, Helvetica, Arial, sans-serif;font-size:14px;"><span style="-webkit-text-stroke-width:0px;display:inline !important;float:none;font-style:normal;font-variant-caps:normal;font-variant-ligatures:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-decoration:none;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;">A NEMA controller can be adapted to your project needs

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<h2>The NEMA LiWAVE Node is a module for wireless control of luminaires via radio, providing individual control, diagnostics, and dimming.</h2>This individual control module is part of the LiWAVE wireless lighting management system (868/915 MHz) and connects seamlessly through a NEMA C136.41 connector. It enables wireless lighting control without additional wiring, offering compatibility with both 868 MHz and 915 MHz frequency bands. The device is designed for easy installation and can be mounted in various locations.The NEMA LiWAVE Node supports multiple luminaire control interfaces, including DALI, DALI 2.0, PWM, 1-10V, and 0-10V, as well as individual load control (on/off). Select versions are equipped with a GPS receiver for geo-positioning and synchronization.Configuration and control of the NEMA LiWAVE Node are performed via an 868/915 MHz radio channel through <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraLiWaveBaseStation">LiWAVE Base Stations</a>.Designed for installation on the lighting fixtures, the device uses a NEMA C136.41 connector and features an IP66-rated enclosure, ensuring durability and protection in outdoor environments.

Wireless Radio (868/915 MHz) NEMA Street Light Luminaire Controller

LiWAVE NEMA Node

<h2>NEMA GSM Node is a compact, waterproof, and wireless luminaire controller that will upgrade your city’s street lighting infrastructure</h2>Designed for advanced functionality and seamless compatibility, it provides precise control and real-time diagnostics for every luminaire.Harnessing state-of-the-art technology, the NEMA GSM Node optimizes street lighting performance. It supports luminaires up to 1000W across a wide voltage range (up to 305V), ensuring both efficiency and reliability.With motion sensor inputs, it seamlessly integrates with third-party <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/products/category/Sensors">sensors</a> to enhance responsiveness to environmental changes.From light control and tilt monitoring to GPS-based alignment, the NEMA GSM Node delivers exceptional precision and performance.

Cellular-Based Controller for Individual Luminaire Management and Monitoring

NEMA GSM Node

How to choose NEMA street light controllers

NEMA street light controllers: Three types of luminaire controllers depending on your infrastructure

Group segment controllers are cabinet-level devices used to control, monitor, and protect entire street lighting power segments rather than individual luminaires. They manage not only lighting schedules, but also the electrical infrastructure behind them — including feeders, protection devices, meters, and sensors.In this article, we explain:<ul><li>what a group segment controller is and how it works,</li><li>why municipalities still rely on segment-based control,</li><li>how to choose the right controller depending on cabinet type and power configuration,</li><li>how segment controllers integrate with modern lighting software platforms.</li></ul><h2>Cabinet-level control of street lighting power segments</h2>For more than a decade, individual controllers have been presented as the future of outdoor lighting. In practice, municipalities and utilities continue to rely on group segment controllers. The reason is simple: they control not only the luminaires, but the entire energy chain.A group controller is installed in the cabinet and manages the full electrical segment: incoming power, contactors, protection devices, monitoring points, and sensors.&nbsp;This allows operators to:&nbsp;<ul><li>Switch and protect feeder lines.</li><li>Detect voltage presence across critical nodes.</li><li>Integrate with meters and third-party equipment via RS-485 or CAN.</li><li>Collect diagnostics and alarms for the whole feeder, not just a single luminaire.</li></ul><h3>Why cities still prefer segment control</h3><ol><li>Reliability: one central device in the cabinet is easier to protect, maintain, and replace than hundreds of nodes on poles.</li><li>Clear diagnostics: dispatchers see the state of an entire segment and can localize faults quickly.</li><li>Cost efficiency: one controller per cabinet reduces CAPEX compared to mass deployment of individual units.</li><li>Scalability: expansion modules (MultiConnect, HighVoltRelay, PowerTrack) extend monitoring and control without redesigning the network. Moreover, segment controllers can serve as a solid base for future upgrades to individual control — for example, PLC or Radio nodes can be layered on top without replacing the cabinet infrastructure.</li></ol>

<h2>How to choose the right group segment controller</h2>Choosing the right segment controller depends on cabinet type and power configuration. DITRA Solutions provides solutions for:<ol><li><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCorePro">DITRA CORE PRO</a> – the standard for three-phase cabinets without Ethernet or GPS.</li><li><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCorePro2">DITRA CORE PRO-2</a> – for cabinets with Ethernet connectivity or where GPS/GLONASS synchronization is required.</li><li><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCoreLight">DITRA CORE LIGHT</a> – a simplified version of CORE PRO &nbsp;with reduced number of relay outputs and control points.</li><li><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraCoreMini">DITRA CORE MINI</a> – an ultra-compact option for managing one outgoing line.</li></ol>The differences are minimal at the functional core, but they allow precise adaptation to project conditions — from large substations to small feeder cabinets.<h3>Software ecosystem and integration options</h3>Municipalities can decide how deep they want to engage with the software infrastructure. At the entry level, <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/software">DITRA CMS</a> provides daily dispatching, scheduling, and cabinet monitoring. For advanced needs, <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/software">DITRA Synergy</a> adds powerful analytics, reporting, and city-wide monitoring. And through open API, all collected data can be integrated into external platforms if required.<h2>The role of segment controllers in modern energy infrastructure</h2>Segment controllers remain the backbone of modern electrical infrastructure. They provide not just lighting schedules, but visibility and control over the power chain that feeds entire districts. Even when cities adopt individual nodes for advanced features, the group controller stays as the anchor point of reliability, monitoring, and data flow. That is why, in 2025, group segment control is not a legacy choice — it is still the most rational foundation for street and city lighting systems.

<h3 class="ember-view reader-text-block__heading-3" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;color:rgba(0, 0, 0, 0.9);font-family:-apple-system, system-ui, system-ui, &quot;Segoe UI&quot;, Roboto, &quot;Helvetica Neue&quot;, &quot;Fira Sans&quot;, Ubuntu, Oxygen, &quot;Oxygen Sans&quot;, Cantarell, &quot;Droid Sans&quot;, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;, &quot;Segoe UI Emoji&quot;, &quot;Segoe UI Symbol&quot;, &quot;Lucida Grande&quot;, Helvetica, Arial, sans-serif;font-size:var(--font-size-xlarge);font-style:normal;font-variant-caps:normal;font-variant-ligatures:normal;font-weight:var(--font-weight-bold);letter-spacing:normal;line-height:var(--line-height-default);margin-bottom:var(--spacing-two-x);orphans:2;outline:var(--artdeco-reset-base-outline-zero);padding:var(--artdeco-reset-base-padding-zero);text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-decoration:none;text-indent:0px;text-transform:none;vertical-align:var(--artdeco-reset-base-vertical-align-baseline);white-space:normal;widows:2;word-spacing:0px;" id="ember777">Why cities still prefer segment control and our recommendations for selecting the right controller</h3>

Selecting the best group segment controller

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<h2>The DITRA CORE PRO Controller is an advanced solution for remote monitoring and management of lighting systems.&nbsp;</h2>Tailored for modern urban infrastructure, it ensures secure two-way communication and seamless integration with smart city technologies, enabling efficient lighting control from any location.Acting as the central hub of the DITRA control system, the DITRA CORE PRO Controller monitors and manages electrical components within lighting control cabinets, including magnetic starters and compatible accessories.It supports RS-485 and CAN interfaces for data exchange with connected devices and meters, while 2G/4G cellular communication ensures reliable connectivity to the DITRA server.The controller is designed to operate on 110/220 V AC or 9-36 V DC, providing flexible power supply options.Configuration is simple and can be performed remotely via the DITRA software platform or locally using DIP switches on the device.Compact and DIN rail-mountable, the DITRA CORE PRO Controller is built for easy integration into lighting control cabinets, delivering both performance and reliability.

Mid-Sized Segment Controller for Street Lighting

DITRA CORE PRO

<h2>The DITRA CORE LIGHT Street Light Controller is intended for remote monitoring and management of street lighting systems.</h2>For two-way communication with external devices and meters, the DITRA CORE LIGHT utilizes RS-485 interfaces. It connects to the DITRA server via a 2G cellular network.The controller operates on either 110/220 V AC or 9-36 V DC power supply.Remote configuration is supported through the <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/software">DITRA control platform</a>, as well as locally via DIP switches on the device.Designed for installation on a DIN rail, it fits seamlessly into lighting control cabinets.

Compact Segment Controller for Street Lighting

DITRA CORE LIGHT

<h2>The DITRA CORE MINI is a versatile outdoor controller designed for reliable single-line feeder control and seamless integration into both small-scale and complex street lighting and energy management systems.</h2>The durable outdoor device is designed for long-term operation on lighting poles or control cabinets. Its UV-stabilized IP67 enclosure ensures stable performance even in harsh climates.&nbsp;The controller provides reliable feeder control for single-phase or three-phase circuits via external contactors and supports integration with both DITRA and third-party equipment through its isolated RS-485 interface. External sensors and electrical energy meters can be connected using standard Modbus communication, enabling advanced diagnostics and monitoring.&nbsp;Integrated daylight sensor and GPS module enhance automation by providing accurate ambient light data, geo-location, and time synchronization. Wireless connectivity via GSM (2G/3G/4G), M2M, and NB-IoT networks ensures continuous remote communication with the <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/software">DITRA software platform</a>. An onboard accelerometer allows the system to detect tilt, pole inclination, or other abnormal physical displacement, providing additional safety and maintenance insights.

Ultra-Small Segment Controller for Street Lighting 

DITRA CORE MINI

&nbsp;What is a group segment controller and how it works

RGB and RGBW luminaires can be controlled using both DALI and DMX protocols, but their capabilities and limitations differ significantly. The choice depends on the number of fixtures, required refresh rate, and whether dynamic lighting effects are needed.In this article, we compare:<ul><li>how RGB/RGBW control works with DALI and DMX,</li><li>channel and address limitations of each protocol,</li><li>refresh rate and synchronization differences,</li><li>when DALI is sufficient and when DMX is the better choice.</li></ul><h2>RGB and RGBW control with DALI vs DMX: key differences</h2>This is one of the most common questions we receive from architects and engineers: “Can we control RGB or RGBW LEDs via DALI? Or do we need to go with DMX from the start?”In short: Yes, you can control RGB/RGBW with DALI — but if you’re doing anything more than static lighting, DMX is almost always the better choice.Let’s break it down by numbers.<h3>Addressing limitations for RGB and RGBW luminaires:</h3><ul><li>DALI supports up to 64 addressable devices per line. An RGBW fixture will consume up to 4 addresses (one per channel: R, G, B, W). → That means you can only control 16 RGBW luminaires per DALI line before hitting the limit.</li><li>DMX allows 512 channels per universe (line).</li><li>An RGBW luminaire still takes just 4 channels, but is treated as one device under centralized control. → So you can connect up to 128 RGBW luminaires per DMX line.</li></ul>&nbsp;

<h3>Refresh rate:</h3><ul><li>DALI sends commands slowly — about 2–3 commands per second. → Fine for on/off, smooth dimming, or occasional color changes. → But any dynamic scenes will appear choppy and out of sync. </li><li>DMX updates up to 44 frames per second, continuously refreshing all channels. → Perfect for animations, gradients, and lighting shows — all in perfect sync.</li></ul><h3>Line length:</h3><ul><li>DMX supports line lengths of up to 300 meters without repeaters, assuming shielded cables are used.</li><li>DALI is also limited to about 300 meters, but it’s more vulnerable to interference — especially with complex topologies or outdoor environments. → DALI also sends power and data over the same wires, which can require extra care in street installations.</li></ul>&nbsp;

<h2>When DALI can be used for RGB/RGBW lighting?&nbsp;</h2><ul><li>For facades with rare color changes (e.g., once a day).</li><li>For integration with a BMS or city-wide management system.</li></ul>Not recommended for dynamic effects — DALI reaches its limits quickly here.<h2>When DMX can be used for RGB/RGBW lighting?&nbsp;</h2><ul><li>To “bring to life” a bridge, building, or waterfront.</li><li>When precise synchronization and high-speed updates are key.</li><li>When there are many RGBW fixtures and you need scalable, flexible control.</li></ul>Choosing between DALI and DMX? Get in touch — we’ll help you find the best solution for your goals, budget, and architectural needs.&nbsp;

DMX vs DALI for RGB and RGBW lighting control

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The DITRA ArchiCORE is a central controller for architectural lighting projects. Its key advantage is that it not only manages dynamic DMX512 lighting scenarios but also monitors and controls the power part of the system — supervising the operation of luminaires, tracking their energy consumption, and ensuring stable performance. With support for 4 DMX outputs, it is ideal for complex architectural installations.Lighting scenarios are created in <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/architecture-facade/software">DITRA LiteFORM</a>, uploaded to the controller, and stored in its memory. Thanks to the playback function, ArchiCORE can automatically run these scenarios according to a schedule or manually, and continue playback even if the server connection is lost.For configuration, monitoring, and remote control, the controller communicates with <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/software">DITRA CMS software</a> via Ethernet or GSM/3G/4G. Compact DIN-rail design ensures easy installation and integration into control cabinets.

Central DMX Controller for Architectural Lighting Control and Power Monitoring

DITRA ArchiCORE

<h2>The DITRA DALI – Smart Ethernet/RS-485/DALI Converter for Street Lighting Control</h2>The DITRA DALI is an intelligent converter designed for street lighting management, supporting Ethernet, RS-485, and DALI interfaces for seamless control and communication.Powered by 100-250 V, it features an Ethernet port with a 10/100 Mbit/s connection for configuration and data transfer.The device is configured via a user-friendly web interface, allowing easy setup of DALI lines and connected equipment.Designed for indoor installations or outdoor shelters, it operates reliably in extreme temperatures and is mounted on a DIN rail for convenience and durability.

DALI Gateway for Intelligent Lighting Control and Management

DITRA DALI

<h2>Splitter Selective Rail is a professional solution for multi-line DMX signal distribution in architectural, stage, and entertainment lighting control cabinets</h2>Splitter Selective Rail is designed for stable and precise DMX512 and RDM (ANSI E1.20) signal routing in professional lighting installations. The device supports single and dual input configurations, allowing flexible distribution of DMX data across complex entertainment, architectural, and stage lighting networks.&nbsp; With support for up to 9 outputs in Single mode or 8 individually assignable outputs in Dual mode, each output can be manually configured to receive a signal from Input A or Input B, ensuring full control over signal paths. Integrated LED status indicators provide real-time visual monitoring of all DMX inputs and outputs, simplifying setup and troubleshooting.&nbsp; Engineered for long-term reliability, the splitter features a laser-etched aluminum housing, optical isolation up to 3500 V on DMX ports, and stable operation across a wide AC voltage range up to 305 V.

DIN-mounted 2-Channel DMX/RDM splitter with up to 9 outputs

Splitter Selective Rail

Can RGB/RGBW luminaires be controlled via DALI? Why is DMX usually preferred?

The segment of autonomous solar street lighting systems has been steadily growing:&nbsp;According to industry research, the global solar street lighting market is expanding at a compound annual growth rate (CAGR) of approximately 7–10%. <a target="_blank" rel="noopener noreferrer" href="https://www.fortunebusinessinsights.com/industry-reports/solar-street-lighting-market-100585">Fortune Business Insights</a> estimates that the market will reach around $19.57 billion by 2032. This rising interest in solar lighting is easy to explain: cities and contractors aim to reduce dependency on electrical grids, lower operational expenses, and meet sustainability targets. However, practice has shown that a solar luminaire alone is not sufficient.Without intelligent control and remote monitoring, an off-grid system faces a set of typical challenges:<ul><li>unpredictable battery depth of discharge;</li><li>reduced energy production due to cloud cover, dust, and seasonal variations in solar irradiance;</li><li>lack of visibility into the condition of the panel, battery, and loads;</li><li>risk of nighttime “blackouts” during winter;</li><li>high cost of on-site maintenance visits.</li></ul>As a result, lighting quality and safety deteriorate, while OPEX increases. Against this backdrop, a new class of solutions has emerged — Solar Lighting Control Systems, which transform a standalone solar luminaire from a “black box” into a manageable and predictable infrastructure component.The goal of this article is to explain how solar-powered street lighting control works, what operational challenges a control system solves (solar lighting battery management, remote monitoring solar lighting), and how the DITRA SOL Mini GSM and DITRA SOL Mini LiWAVE solutions help integrators, lighting manufacturers, and municipal operators build reliable and scalable projects.&nbsp;

<h2>How a solar street lighting system is structured and operates</h2>A basic autonomous system (used for standalone or non-networked installations) traditionally consists of four main components:<ol><li>Solar panel (PV module)</li><li>Charge controller (MPPT)</li><li>Battery (typically LiFePO₄)</li><li>LED luminaire</li></ol>The energy flow is as follows: PV → MPPT charge controller → battery → LED loadHowever, for a scalable, predictable, and economically efficient project, a fifth key component is required — a Control and Monitoring Controller (Gateway). This device transforms a simple off-grid luminaire into a managed infrastructure asset, ensuring reliability and visibility across the entire system.<h2>The role of the MPPT charge controller</h2>MPPT (Maximum Power Point Tracking) is a dedicated charge controller. Its function is similar to that of a power supply unit in a computer: it operates autonomously and focuses exclusively on optimizing battery charging. It is not equipped with communication capabilities and cannot transmit operational data to a central management system.The MPPT continuously tracks the panel’s maximum power point under real-world conditions — cloud cover, temperature fluctuations, partial shading, or dust accumulation. Studies show that MPPT controllers extract 15–25% more energy compared to simple PWM regulators under variable irradiance. For solar street lighting, this additional energy directly translates into extra nighttime operating hours and increased autonomy days.

<h2>Battery management (Solar Lighting Battery Management)</h2>LiFePO₄ batteries are well suited for outdoor applications but require protection from:<ul><li>deep discharge,</li><li>overcharge,</li><li>extremely low or high temperatures,</li><li>excessive charge/discharge currents.</li></ul>A proper control system must:<ul><li>monitor SOC (State of Charge),</li><li>forecast available energy for the upcoming night,</li><li>adapt the lighting profile to the current energy balance.</li></ul>Without battery management, system autonomy becomes unpredictable: the luminaire may perform well on clear days but disconnect prematurely during periods of poor weather.&nbsp;

<h2>Control and communication: The external Gateway</h2>To obtain telemetry and remotely control the luminaire, an additional device is required — a GSM or radio-based controller, which:<ul><li>connects to the MPPT via RS-485 (Modbus), and allows remote adjustment of schedules, dimming, and lighting profiles,</li><li>reads voltage, current, and MPPT status parameters,</li><li>collects and decodes operational telemetry,</li><li>transmits data to the CMS (via GSM/4G or wired Ethernet),</li></ul>This external controller enables the integration of an autonomous solar luminaire into a remote monitoring and control architecture, making the system manageable and observable.Without such a controller, a solar luminaire remains a fully autonomous “black box”, meaning the operator cannot:<ul><li>monitor system operation,</li><li>forecast available energy,</li><li>react to faults,</li><li>receive alerts,</li><li>or adjust brightness levels and schedules.</li></ul><h3>Intelligent control and diagnostics: The foundation of modern solar lighting control systems</h3>An autonomous solar luminaire is an energy-dependent system sensitive to fluctuations in solar irradiance, panel contamination, and battery degradation.According to <a target="_blank" rel="noopener noreferrer" href="https://www.researchgate.net/publication/369916737_Studying_the_weather_condition_affecting_on_solar_panel_efficiency">published research</a>, unfavorable weather conditions, such as a wet panel surface in cloudy weather, can cause a drop in efficiency of over 41%. Furthermore, surface contamination (dust) is shown to reduce the panel's maximum power output by approximately 35%. Seasonal changes in the sun’s position and suboptimal panel tilt lead to significant reductions and high variability in energy production. Such fluctuation can be reliably managed and compensated only through intelligent control systems.

<h2>Telemetry as the foundation of predictability</h2>To accurately forecast system behavior, a solar lighting controller must collect essential real-time parameters, including:<ul><li>panel and battery voltage (V+ / V−),</li><li>charge and discharge current (I_in / I_out),</li><li>MPPT controller status,</li><li>load consumption (LED power),</li><li>temperature of key components,</li><li>error and fault codes.</li></ul>This information enables the operator to:<ul><li>evaluate the actual energy balance,</li><li>determine whether the system can operate until dawn,</li><li>detect panel or battery degradation,</li><li>correctly calculate expected autonomy days.</li></ul>Without telemetry, system operation becomes a “blind flight”, offering no visibility into performance or risks.&nbsp;

<h2>Panel and battery diagnostics</h2>An intelligent control system must not only record parameters but also interpret them. Typical diagnostic functions include:<ul><li>analyzing reductions in PV current and voltage relative to expected values,</li><li>comparing actual power generation with theoretical irradiance,</li><li>monitoring nighttime depth of discharge,</li><li>identifying abnormal MPPT behavior.</li></ul>This allows early detection of issues such as:<ul><li>panel contamination, shading, or physical damage;</li><li>declining battery capacity requiring replacement (SOH — State of Health estimation based on</li><li>discharge-cycle history);</li><li>insufficient energy reserve that may lead to nighttime shutdowns.</li></ul>In effect, the system transitions from reactive maintenance to a predictive maintenance model.<h2>Adaptive lighting control</h2>A solar luminaire can consume only the energy it has accumulated. Therefore, lighting control must be based on available energy rather than a fixed “100% brightness all night” approach. An intelligent solar street light controller can:<ul><li>apply nighttime step-dimming profiles,</li><li>reduce output when battery SOC (State of Charge) is low,</li><li>activate PIR-based boost modes only when motion is detected,</li><li>adjust lighting schedules to seasonal conditions and expected energy production.</li></ul>

<h2>Why remote control is critical</h2>Intelligent algorithms are ineffective if their results cannot be monitored, analyzed, and used in real time. Remote monitoring for solar lighting is the layer that makes the entire system operationally manageable.<h3>From “Post-Factum” response to preventive management</h3>Without connectivity, an operator discovers a problem only after the luminaire has already failed to turn on. Remote control allows operators to:<ul><li>see when the panel stops charging (due to contamination, shading, or damage);</li><li>track accelerated battery degradation;</li><li>receive alerts if the luminaire does not switch on according to schedule;</li><li>take action before safety on the site is compromised.</li></ul><h3>Reducing OPEX and optimizing field operations</h3>Autonomous poles are often located in remote areas, and accessing the panel or battery compartment can be labor-intensive. A service visit just to “check what happened” is costly—especially when the issue turns out to be nothing more than a dirty panel.Remote monitoring (remote monitoring solar lighting) helps reduce the Total Cost of Ownership (TCO) by enabling:<ol><li>Optimized logistics. Service teams are dispatched only for confirmed faults, eliminating unnecessary site visits and significantly reducing maintenance workload.</li><li>Reduced downtime. The ability to remotely reboot the system or adjust lighting profiles allows a portion of issues to be resolved without physically visiting the site.</li><li>Extended asset lifetime. Proper solar lighting battery management, including temperature compensation and deep-discharge protection, extends the lifespan of LiFePO₄ batteries—directly improving project ROI.</li></ol>For projects with dozens or hundreds of luminaires, these savings become critical to economic feasibility.

<h2>Scalability and operational transparency</h2>A project with 5 luminaires can be managed manually. A project with 50 luminaires becomes difficult. A project with 500+ luminaires is practically unmanageable without CMS integration and remote control. A remote monitoring system provides:<ul><li>a centralized view of the entire lighting network,</li><li>a unified interface for telemetry and fault notifications,</li><li>a complete operational history necessary for SLA compliance and reporting to municipal authorities.</li></ul>Architecturally, remote control can be implemented via GSM/4G (GSM solar lighting control) or via a radio network (wireless solar lighting control). The optimal choice depends on the project’s topology and TCO requirements.

<h2>DITRA Solutions: Solar lighting control systems</h2>For data, diagnostics, and intelligent algorithms to become part of an operational project, a reliable controller integrated into the infrastructure is required. DITRA Solutions offers two devices for autonomous solar luminaires:<ul><li>DITRA SOL Mini GSM — a controller with direct GSM connectivity;</li><li>DITRA SOL Mini LiWAVE — a radio-network node operating through a base station.</li></ul>Both devices connect to the MPPT controller via RS-485 (Modbus) and perform three essential functions:<ul><li>Telemetry. Collecting data on battery status, PV panel performance, load consumption, current and voltage measurements.</li><li>Diagnostics. Identifying loss of charging, detecting battery degradation, MPPT errors, and schedule-related failures.</li><li>Control. If the MPPT supports external commands, the controller can remotely adjust brightness profiles, schedules, and operating modes of the luminaire.</li></ul>For a detailed comparison of these two communication architectures (GSM vs. Radio) and a practical guide on selecting the optimal solution based on your project's topology and Total Cost of Ownership (TCO), read our dedicated article: <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/news/solar-powered-street-lighting-control">Solar street lighting control: Choosing the right backhaul (GSM vs LiWAVE)</a>&nbsp;

Control and monitoring are not “optional extras” for autonomous solar luminaires—they are essential components of any professional solar lighting project. Without an intelligent management system and remote monitoring:<ul><li>autonomous performance cannot be guaranteed, especially during winter;</li><li>operational expenses increase due to frequent site visits;</li><li>large-scale deployments become difficult to manage and lack transparency for the end customer.</li></ul>Modern Solar Lighting Control Systems solve these challenges through telemetry, diagnostics, adaptive lighting control, and remote connectivity. DITRA SOL Mini GSM and DITRA SOL Mini LiWAVE implement all these capabilities in real-world applications, relying on principles validated by scientific research and field experience.As a result, solar street lighting becomes not only autonomous, but predictable, manageable, and economically viable for cities, integrators, and lighting manufacturers.&nbsp;

Why intelligent control is essential for reliable operation

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Why remote-controlled systems outperform traditional standalone luminaires&nbsp;

How solar street lighting works

DMX transmission over fiber optics is used in professional lighting systems to reliably deliver control data over long distances without electromagnetic interference. Instead of relying on copper Ethernet links limited to 100 m, fiber optic infrastructure allows DMX-over-IP protocols such as Art-Net and sACN to operate across venues, stadiums, and distributed architectural sites over distances of several kilometers.In this article, we explain:<ul><li>why fiber optics is used for long-distance DMX transmission,</li><li>how DMX data is transported over Ethernet protocols,</li><li>how universal SFP ports increase system flexibility,</li><li>how a fiber-based lighting control system is implemented in real projects.</li></ul><h2>Distance limitations of Ethernet in lighting control</h2>In professional lighting projects — whether concert venues, stadium facade lighting, or distributed architectural installations — there is often a need to transmit control signals over long distances. However, a standard Ethernet cable with an RJ-45 connector (twisted pair) is limited in length: reliable data transmission is only possible up to 100 meters.This limitation can be overcome in two ways:<ol><li>Extension using Ethernet repeaters or switches — but this setup complicates the infrastructure, increases the project cost, and is susceptible to interference, especially in electromagnetically "noisy" environments.</li><li>Transition to fiber optic lines enables data transmission over distances of up to 10 km, ensuring complete interference immunity, high bandwidth, and reliability in large-scale events and distributed systems.</li></ol>

<h2>Fiber optic lines in lighting control systems</h2>Fiber optics is used as a transport medium for lighting control network protocols such as Art-Net, sACN, or KiNet, where DMX data is encapsulated into Ethernet packets. This approach enables transmission of thousands of DMX universes through a single physical channel and flexible routing within standard network infrastructure.<h2>Universal SFP ports as a connection architecture option</h2>Traditionally, devices for DMX transmission over fiber optics were equipped with fixed optical interfaces pre-defined by the manufacturer (e.g., SC or ST connectors with integrated transceivers). This approach was reliable but limited flexibility: the type of optical line had to be selected during procurement, and any change in requirements meant replacing the entire device.An alternative architecture is the use of a universal SFP port. This port can accept both optical modules (LC, multimode and single-mode) and copper modules (RJ45). This allows equipment to be adapted to specific project conditions, reduces the number of model variants, and simplifies replacement or upgrades on site. The following options are commonly used:<ul><li>Fiber optic modules (LC, 1G SFP): Multimode (850 nm, OM3/OM4) allow transmission up to 550 m; single-mode (1310/1550 nm, OS2) — up to 10–20 km depending on optics.</li><li>Copper modules (RJ45): Allow use of Cat5e/Cat6 cable up to 100 m and provide compatibility with existing Ethernet infrastructure. &nbsp;</li></ul>

<h2>Example of building a fiber optic lighting control system in a concert hall using the <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/GigaJetPrime">GigaJet Prime </a>converter by Ditra Solutions&nbsp;</h2>In concert halls where the FOH (Front of House) technical room is located at a significant distance from the stage, it's important to ensure reliable and interference-free signal transmission. In this example, the lighting control system starts in the FOH area, where several lighting consoles can be connected simultaneously.Each console generates its own DMX universes and sends data via Ethernet cable using Art-Net or sACN protocols. All signals are sent to the DMX/Ethernet<a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/GigaJetPrime"> GigaJet Prime converter</a>.The <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/GigaJetPrime">GigaJet Prime</a> device in rack format (1U) combines the data received from all consoles and sends it over single-mode fiber optics to the stage using the SFP port. A fiber optic line with a range of up to 10 km provides stable signal transmission over long distances, eliminating the limitations typical of copper cables.&nbsp;At the stage, the second <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/GigaJetPrime">GigaJet Prime</a> unit receives the optical signal via its SFP port and distributes the data to connected equipment. Thanks to eight optically isolated DMX outputs, the signal is sent to various lighting devices:<ul><li>Moving heads and dynamic fixtures</li><li>Smoke machines and special effects generators</li><li>Pyrotechnic and laser systems</li><li>Other DMX-compatible devices</li></ul>In addition, the DMX signal from <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/GigaJetPrime">GigaJet Prime</a> can be routed to other DMX converters via Ethernet protocol, such as ArtGate Prime. This allows for system expansion, connecting additional zones or lighting lines, while maintaining integrity and synchronization of control.Additionally, the system supports RDM (Remote Device Management), allowing feedback on the status, configuration, and diagnostics of the equipment. This data is returned to the FOH via the same fiber optic line, providing remote monitoring without the need for physical access to stage devices.

<h2>Main features of <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/GigaJetPrime">GigaJET Prime&nbsp;</a></h2><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/GigaJetPrime">GigaJET Prime</a> is a 1U DMX/Ethernet converter for professional use developed by Ditra Solutions. It includes the following specifications:<ul><li>8 galvanically isolated DMX512 ports, configurable as IN/OUT</li><li>Support for Art-Net I–IV, sACN (draft, release), KiNet v1/v2, RTTrPL, RDM (E1.20) protocols</li><li>Universal SFP port (SFP-RJ45/Fiber) supporting both fiber optic and copper SFP modules</li><li>Built-in 5-port Gigabit Ethernet switch (RJ45 EtherCON), PoE support</li><li>Support for redundant transmission schemes, ring and star topologies (with external managed switches)</li><li>Power supply: 90–315 V AC or PoE (IEEE 802.3af). Maximum consumption — 5 W</li><li>Status indicators for each interface, web configuration interface, support for ArtGate Setting and third-party Art-Net configurators</li><li>Fast recovery after power outage, support for static scenes and profiles</li><li>Form factor: 1U, IP54, passive cooling without fans</li></ul>DMX transmission over fiber optic lines is a technically justified solution for extended and distributed lighting control systems, where long distances, noise immunity, and scalability are critical.&nbsp;Depending on the architecture, the project uses Ethernet protocols (Art-Net, sACN, KiNet) in which DMX data is encapsulated in IP traffic. Architecture with a universal SFP interface provides additional flexibility: it allows choosing between multimode or single-mode optics and copper modules (RJ45 or LC/SC/ST) without replacing the equipment. This approach complies with IEEE 802.3 and ANSI ESTA standards and allows designers to adapt the system to site-specific conditions, optimizing the control infrastructure without being tied to a specific physical medium. &nbsp;

<span style="background-color:rgb(255,255,255);color:rgba(0,0,0,0.9);font-family:-apple-system, system-ui, system-ui, &quot;Segoe UI&quot;, Roboto, &quot;Helvetica Neue&quot;, &quot;Fira Sans&quot;, Ubuntu, Oxygen, &quot;Oxygen Sans&quot;, Cantarell, &quot;Droid Sans&quot;, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;, &quot;Segoe UI Emoji&quot;, &quot;Segoe UI Symbol&quot;, &quot;Lucida Grande&quot;, Helvetica, Arial, sans-serif;font-size:16px;"><span style="-webkit-text-stroke-width:0px;display:inline !important;float:none;font-style:normal;font-variant-caps:normal;font-variant-ligatures:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-decoration:none;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;">Fiber optics is used as a transport medium for lighting control network protocols such as Art-Net, sACN, or KiNet.

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GigaJET Prime is a high-performance rack-mounted DMX node and bidirectional Ethernet converter designed for large-scale lighting networks. It combines advanced merging, signal conversion, backup, and distribution functions with a powerful Gigabit backbone — ideal for professional installations requiring speed, reliability, and long-distance connectivity.The device features 8 optically isolated DMX512 ports (with 2 paired M/F connectors), each fully configurable as input or output. GigaJET Prime supports ArtNet (I–IV), sACN, KiNet (v1, v2), RTTrPL, and RDM (E1.20), allowing seamless integration into modern lighting systems with flexible merging modes (HTP, LTP, AUTO, PRIORITY).Equipped with a 5-port Gigabit Ethernet switch (RJ45 EtherCON) and an SFP port for fiber uplinks, GigaJET Prime supports multimode (up to 2 km) and single-mode (up to 10 km) optical links — extending control over large venues, stadiums, and distributed installations.The unit can be powered via 90–315V AC or PoE (IEEE 802.3af) and includes PowerCON TRUE1 in/out connectors for secure daisy-chaining. All DMX ports are galvanically isolated, and the system features advanced protections such as surge resistance, IP conflict detection, and instant reboot after power loss. Two trigger inputs allow external event integration.Configuration is available via an intuitive web interface, ArtGate Setting, or third-party ArtNet-compatible software. Static scenes can be stored in non-volatile memory for standalone operation or show backup.With its 1U rackmount housing, IP54 rating, and silent fanless cooling, GigaJET Prime is built for demanding environments that require dependable infrastructure and fiber-speed distribution.

Rack-mounted DMX/Ethernet node combining an 8-port DMX splitter, 5-port Gigabit Ethernet switch, and fiber-optic media converter with SFP support for long-distance Art-Net/sACN distribution

GigaJET Prime

GigaJET20 Prime is a high-capacity, rack-mounted Ethernet-to-DMX interface designed for demanding lighting networks in arenas, stadiums, smart city infrastructure, and touring systems. It combines a powerful 20-port DMX splitter, a 3-port Gigabit switch, and a fiber uplink module in one robust 2U chassis — providing unmatched performance in complex ArtNet/sACN environments.Each of the 20 DMX512 ports (XLR 5-pin) is fully optically isolated and can be individually configured as an input or output. The device supports all major industry protocols including DMX512, RDM (ANSI E1.20), ArtNet (I–IV), sACN, KiNet (v1, v2), and RTTrPL, enabling flexible integration and precise control across distributed systems.An integrated SFP fiber port allows long-distance transmission — up to 2 km with multimode or 10 km with single-mode modules — making GigaJET20 Prime ideal for inter-building or large-site signal extension. The built-in 3-port Gigabit switch (EtherCON) ensures high-throughput local networking, while PoE (IEEE 802.3af) and 90–315V AC dual-power input options offer redundancy and high surge protection.The unit includes four TRUE DMX pass-through pairs, two trigger inputs for external control or alarms, and onboard non-volatile memory for static scenes and configuration profiles. Setup is handled via a user-friendly web interface, the ArtGate Setting utility, or third-party ArtNet-compatible platforms. IP conflict detection and fast recovery after power loss further enhance stability.Built for 2U rackmount installation, GigaJET20 Prime is a reliable, scalable solution for mission-critical lighting systems where speed, flexibility, and fiber-grade reliability are essential.

Rack-mounted Art-Net/sACN to DMX converter, fiber-optic media converter, and 3-port Gigabit Ethernet switch with up to 20 optically isolated DMX ports

GigaJET20 Prime

ArtGATE Prime is a professional-grade DMX–ArtNet/sACN converter, splitter, booster, and intelligent signal merger — designed for rack-mounted use in complex lighting control systems. It combines the functions of a high-speed DMX node with advanced data routing, backup, and redundancy features, all within a compact 1U form factor.Available in 4-port and 8-port configurations, ArtGATE Prime supports DMX512, RDM (ANSI E1.20), ArtNet (I–IV), sACN (Draft &amp; Release), KiNet (v1, v2), and RTTrPL. All DMX ports are optically isolated and fully configurable in both input and output modes. The device can intelligently merge up to four input streams from any combination of ArtNet, sACN, or DMX sources — ensuring continuous output even in backup scenarios.Two Ethernet ports (with EtherCON connectors) provide network redundancy and include an integrated switch. ArtGATE Prime supports Power over Ethernet (PoE) and AC input from 90 to 315 V, with PowerCON TRUE1 in/out connectors for secure daisy-chaining and high surge tolerance.Configuration is easy through the web interface, ArtGate Setting utility, third-party ArtNet-compatible software, or DITRA’s own platform. The unit also features dual trigger inputs for alarms or custom events, and DHCP/IP conflict detection for reliable network performance.ArtGATE Prime is a complete solution for professional lighting control — trusted in fixed installations, live shows, and broadcast environments.

Rack-mounted bidirectional DMX to Ethernet converter, splitter, and merger with up to 8 ports, RDM support, and full ArtNet/sACN integration

ArtGATE Prime

How fiber optics is reshaping long-distance lighting control

DMX transmission over fiber optics: Implementation flexibility via SFP Ports

<a target="_blank" rel="noopener noreferrer" href="https://www.globenewswire.com/news-release/2024/05/06/2875584/28124/en/Solar-Street-Lighting-Global-Business-Report-2024-Increasing-Number-of-Smart-Cities-to-Drive-the-Growth-of-Solar-Street-Lighting-A-US-22-7-Billion-Market-by-2030.html">Solar street lighting is scaling fast worldwide</a>—making control and diagnostics as important as the hardware itself. Without telemetry and remote actions, faults stay invisible and OPEX grows.&nbsp;This guide explains:<ul><li>what the control layer does in solar street lighting systems,</li><li>how GSM and radio (LiWAVE) backhauls differ,</li><li>how to choose the right communication method based on topology and total cost of ownership.</li></ul><h2>Why remote control matters</h2>Control is essential for collecting telemetry, performing diagnostics, and managing operational modes without sending crews to the installation site. For example, you will immediately know:<ul><li>that the luminaire battery is depleted (needs replacement);</li><li>that the solar panel is not charging (it may be dirty or damaged);</li><li>that the lighting did not turn on according to the schedule (needs urgent correction to ensure safety).</li></ul>This approach helps reduce the number of site visits and ensure the stable operation of your entire lighting fleet. For this, we offer two solutions: <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraSolMiniGSM">DITRA SOL Mini GSM</a> and <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraSolMiniLiWave">DITRA SOL Mini LiWAVE</a>.<h2>What both controllers do</h2>Both devices are the heart of the system. They connect to the MPPT charge controller via the RS-485 interface and provide comprehensive information:<ul><li>Telemetry: Battery status, charging process, load consumption.</li><li>Measurements: Accurate data on current (I_in / I_out) and voltage (V+ / V−).</li><li>Control: If your MPPT controller supports external commands, you can remotely change operating schedules or dim the light output. Otherwise, the controller functions solely as a telemetry node, reporting errors to the server. &nbsp;</li></ul>

<h2>GSM vs radio backhaul in solar street lighting control. The Key difference: The Communication method</h2>The main distinction between the controllers is how they send data to the central management system (CMS).<h3><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraSolMiniGSM">DITRA SOL Mini GSM: </a>Direct cellular link</h3><ul><li>How it works: The controller has a built-in modem (GSM/GPRS/4G) and connects directly to the server via a cellular operator.</li><li>SIM Cards: A SIM card is required in every luminaire.</li><li>Best suited for: Single, remote, or widely spaced luminaires where building additional radio infrastructure is not cost-effective. This is the fastest solution for deployment.</li></ul><h3><a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraSolMiniLiWave">DITRA SOL Mini LiWAVE:</a> Cost-effective radio network (Gateway)</h3><ul><li>How it works: The controller (referred to as a node) communicates with the nearest LiWAVE Base Station via a radio link. The Base Station acts as a gateway, collecting the data and connecting to the server via a cellular network (GSM/4G) or a wired Ethernet connection.</li><li>SIM Cards: No SIM card is needed in the luminaires.</li><li>Key advantage: One Base Station can serve dozens, sometimes up to a hundred, nodes. This significantly reduces operating expenses (OPEX) since cellular subscription costs are consolidated to the Base Station.</li><li>Best suited for: Clusters of lights (streets, parks, long roads) where cost-effectiveness and scalability are paramount. &nbsp;</li></ul>

<h2>How to choose the right backhaul? Topology and cost</h2>Choosing between the controllers depends on your project's topology and the total cost of ownership (TCO):<ul><li>For single, far-apart poles: We recommend <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraSolMiniGSM">DITRA SOL Mini GSM</a>. This avoids the capital investment required for a Base Station.</li><li>For groups of luminaires within coverage: <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/DitraSolMiniLiWave">DITRA SOL Mini LiWAVE</a> is optimal. The Base Station purchase is quickly offset by the cost savings realized from the reduced number of cellular subscriptions.</li><li>For dense urban areas: You must verify the LiWAVE coverage. If high buildings severely limit the Base Station's range (e.g., serving only 15–20 luminaires), the GSM solution (direct cellular) may prove more economical in terms of TCO.</li></ul><h2>Reliability in extreme conditions</h2>Since our controllers operate outdoors, we have ensured maximum protection:<ul><li>Operating temperature: They withstand temperature swings from -40°C to +70°C.</li><li>Humidity: The enclosure handles relative humidity up to 100%.</li><li>Protection: The IP67 standard guarantees complete dust-tightness and protection against temporary immersion in water.</li></ul> By choosing <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/products/category/SolarControllers">DITRA SOL Mini</a>, you are investing in a reliable solution designed for long-term operation even in the most challenging climatic conditions. &nbsp;

Solar street lighting control: GSM vs LiWAVE — how to choose and why it matters

How does solar-powered street lighting control work

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<h2>DITRA SOL Mini GSM is an intelligent controller for standalone solar luminaires and lighting systems.&nbsp;</h2>The controller connects to an MPPT charge controller via RS-485, enabling the transfer of charging parameters, battery status, and current energy consumption. It also supports current (I In / I Out) and voltage (V+, V−) measurement channels for accurate monitoring of energy flow.The device provides reliable communication with DITRA server through GSM/GPRS/2G/3G/4G.DITRA SOL Mini GSM is an ideal solution for smart city projects, remote areas, and off-grid systems where reliable monitoring and control are required without wired networks.If your project includes widely spaced or remote solar luminaires, GSM may be the most efficient option. To understand when GSM is preferable over LiWAVE, read our comparison: <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/news/solar-powered-street-lighting-control">Smart control for solar street lighting — GSM vs LiWAVE.</a> The article outlines key criteria for selecting the appropriate controller.

Ultra-compact Solar GSM Controller for Street Lighting 

DITRA SOL MINI GSM

<h2>DITRA SOL Mini LiWAVE is an advanced radio controller designed for standalone solar luminaires and off-grid lighting systems.&nbsp;</h2>Unlike GSM-based models, it communicates wirelessly through the LiWAVE protocol, transmitting all operational data to a nearby base station, which then relays the information to the central dispatching platform.The controller connects directly to an MPPT charge controller via RS-485 and monitors key parameters such as battery status, charging process, and energy consumption of the LED luminaire. It features dedicated channels for current (I In / I Out) and voltage (V+, V−) measurement, ensuring precise monitoring of energy balance in the system.With its wireless LiWAVE connectivity, DITRA SOL Mini LiWAVE offers a cost-effective and scalable solution for smart city applications, solar street lighting, and remote installations where reliable monitoring and control are required without SIM cards or cellular subscriptions.LiWAVE is ideal for clustered installations requiring scalability and low OPEX. If you are evaluating whether LiWAVE or GSM is the right fit, explore our detailed analysis: <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/news/solar-powered-street-lighting-control">Smart control for solar street lighting — GSM vs LiWAVE.</a>

Ultra-compact Solar Radio Controller for Street Lighting 

DITRA SOL MINI LiWAVE

Solar street lighting control: Choosing the right backhaul (GSM vs LiWAVE)

Smart control for solar street lighting

<h2>The role of street lighting in Smart City infrastructure</h2>Modern cities are increasingly transitioning toward the Smart City model, where infrastructure — including energy, transport, communications, and lighting — functions as an interconnected system. <a target="_blank" rel="noopener noreferrer" href="https://smart-cities-marketplace.ec.europa.eu/sites/default/files/2021-06/Smart%20Lighting%20Factsheet_0.pdf">According to the Smart Lighting Factsheet by the European Commission</a> (2021), street lighting systems hold the greatest potential to serve as a “connectivity platform” for urban services. In fact, this is already a distributed network: poles are installed throughout the city, each equipped with power and standardized mounting and connection points. There is no need to build infrastructure from scratch — existing poles can accommodate sensors (motion, daylight, meteo), communication modules, and controllers, enabling rapid scaling of digital services without additional capital expenditure on the network backbone.Today, cities allocate more than 20% of their energy budgets to lighting, while 75% of installed luminaires are over 25 years old and rely on outdated technologies. Upgrading to LED luminaires combined with intelligent control systems can reduce energy consumption by 50–70%.Sensors play a crucial role in this transition: motion, daylight, and weather sensors enable lighting to respond dynamically to real conditions. They represent the evolution from “smart” technologies to fully adaptive systems that enhance safety, comfort, and efficiency in urban environments.

<h2>Key sensors for adaptive lighting</h2>Among the many sensor types used in street lighting systems, three categories form the foundation of adaptive control: motion sensors, daylight sensors, and meteo sensors. Their combined use delivers the most significant improvements in both energy efficiency and lighting performance.<h3>Motion sensors for adaptive street lighting</h3>Adaptive lighting systems use two fundamentally different types of motion sensors — infrared (PIR) and microwave (MW).<a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/InfraredSensor">Infrared motion sensor</a> detects infrared radiation emitted by people, animals, or vehicles. When the temperature of a moving object differs from the ambient air, the sensor registers the change and signals the luminaires to increase brightness.<ul><li>Advantages: high accuracy in detecting humans and animals; immune to false triggers caused by vibration or wind.</li><li>Limitations: reduced sensitivity in hot climates where asphalt or building surfaces reach temperatures similar to the human body, making detection less reliable.</li></ul>

<a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/MotionSensor">Microwave motion sensor </a>emits low-frequency microwave waves and analyzes the reflected signal. Movement within the detection area changes the frequency of the reflected wave (Doppler effect), which the sensor interprets as motion.<ul><li>Advantages: high sensitivity and range; capable of detecting motion through glass, plastic, or thin barriers; supports fine-tuning for detection area and sensitivity. Event transmission via DALI enables automatic dimming and presence-based lighting control. </li><li>Limitations: strong penetration can lead to unwanted triggers from adjacent zones; excessive sensitivity may cause false alarms due to environmental movement (wind, precipitation). Does not maintain static presence detection, typically compensated with a hold-time timer.</li></ul>

<h3>Daylight sensors for street and tunnel lighting</h3>The <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/WireDaylightSensor">DITRA Wire Daylight Sensor</a> is a professional natural light sensor designed for outdoor and tunnel lighting. It precisely measures natural light levels and transmits data to the controller via RS-485 (Modbus-RTU), informing the control system when to switch lights on or off based on actual outdoor brightness levels, as well as how to adjust lighting scenarios and dimming levels in response to changing environmental conditions. In tunnels, it regulates lighting at entry and exit zones according to external brightness, ensuring driver safety and visual comfort.<ul><li>Limitations: measures illumination only at the installation point; incorrect placement (shadows, glare, reflections) may require relocation. Proper cabling and shielding of the RS-485 line are essential to prevent interference.</li></ul>

<h3>Meteo sensors in adaptive lighting systems</h3>The <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/MeteoSensor">DITRA Meteo Sensor</a> is a compact weather sensor for Smart City and street lighting systems. It measures temperature, humidity, and atmospheric pressure, transmitting data to the controller via RS-485 (Modbus-RTU). These readings provide environmental context for adaptive control — increasing brightness during fog or precipitation and reducing levels in clear conditions. Through DITRA controllers, data are transmitted via GSM/Ethernet and aggregated within DITRA software on the customer’s server. Beyond lighting control, meteorological data can be used by municipalities for analytics (fog frequency, correlation with accidents or complaints, maintenance and energy planning).Advantages: high-accuracy weather data make lighting truly adaptive, improving safety and comfort while reducing energy use and citizen complaints. The RS-485 (Modbus-RTU) bus enables easy integration with DITRA controllers and third-party systems, and remote configuration reduces on-site maintenance and speeds up commissioning. Limitations: measurements reflect local microclimate — proximity to warm surfaces, stagnant air, or direct sunlight may shift readings, requiring proper sensor placement. The RS-485 line must be correctly terminated and shielded to avoid signal loss.

<h2>Connection and scalability</h2>Our wired sensors use the RS-485 (Modbus-RTU) bus with a multidrop topology, allowing multiple sensors to operate on a single cable, each with its own address. This reduces cabling length and installation cost, simplifies expansion (add a sensor — assign an address), and ensures compatibility with DITRA controllers and third-party systems.Sensors form the fundamental layer that connects lighting to the Smart City ecosystem. A single telemetry stream can simultaneously improve street visibility, optimize energy use, and enhance urban analytics. Data are aggregated within the<a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/software"> DITRA Synergy Smart City integration platform</a>, which can function either as an independent management layer or exchange data with existing municipal platforms through open API, ensuring high-level interoperability.<h2>Case studies: Smart lighting in action</h2>Below are four concise case studies showing how sensors are applied in real projects, how they impact city infrastructure — from lighting behavior to operational workflows — and the measurable benefits after deployment, including improved safety, visibility, and reduced maintenance load.

<h3>PIR Motion Sensor — Residential Area / Pedestrian Alley</h3>Context: at night, luminaires operated constantly at 100%, leading to complaints about over-brightness and visual discomfort.After implementation: one PIR sensor per pole group; base level at 30%, smooth increase up to 80–100% (adjustable) upon motion detection, then gradual dimming.Benefit: improved comfort and visibility, fewer complaints, and energy savings without manual schedule adjustments.<h3>MW Motion Sensor — Hotel Driveway / Parking Area</h3>Context: glass structures and uneven traffic flow — important to detect vehicles before entry.After implementation: the microwave sensor detects motion through glass and sends an early command to the controller to increase brightness; when no motion is detected, the network returns to base level.Benefit: safer navigation and guest comfort, less time at full brightness, and reduced manual intervention.

<h3>Wire Daylight Sensor — Tunnel Portals</h3>Context: during the day, the strong contrast between outdoor and tunnel lighting can cause driver glare; at night, overly bright entry lighting can create discomfort during eye adaptation.After implementation: sensors at both tunnel entrances and exits measure actual outdoor brightness, allowing the controller to automatically adjust lighting in threshold zones for smooth visual transitions between outdoor and tunnel lighting.Benefit: improved driver safety and comfort by eliminating sharp brightness contrasts and ensuring compliance with visibility standards.<h3>Meteo Sensor — Coastal Highway and Bridge</h3>Context: fog and drizzle reduced visibility, leading to increased complaints.After implementation: the meteo sensor (temperature, humidity, pressure) provides context — when visibility drops, brightness increases; during clear weather, levels are reduced. Events and telemetry are transmitted to the CMS.Benefit: improved safety, optimized energy use during clear nights, fewer visibility complaints, and valuable analytics for urban planning.Adaptive lighting is not just about energy efficiency — it’s about building smarter and safer urban environments. With motion, daylight, and meteo sensors working together, lighting becomes a responsive part of city infrastructure, continuously adapting to people, weather, and context.DITRA’s ecosystem of controllers and sensors provides the foundation for scalable Smart City lighting — efficient, reliable, and ready for future integration.If you’re planning a Smart City or adaptive lighting project, we’ll be glad to share our experience and help you choose the right technical solution.&nbsp;

Motion, daylight, and meteo sensors in adaptive street lighting &nbsp;

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<h2>The Smart Infrared Motion Sensor is a high-precision PIR sensor that detects movement by sensing heat variations emitted by people or vehicles.</h2> It provides real-time occupancy data to luminaire controllers via the DALI protocol, enabling automatic and energy-efficient lighting control. Best suited for environments with moderate surface temperatures, such as streets, façades, and parking areas, the sensor ensures reliable operation when there is a clear temperature contrast between moving objects and the background. Its configurable detection range allows precise sensitivity adjustment for different outdoor installations. Available in both Zhaga-type connector and wired versions, it integrates seamlessly into modern lighting systems for reliable and adaptive illumination management.

Advanced Infrared Motion Sensing for Smart Lighting

DITRA Smart Infrared Motion Sensor

<h2>The MW Motion Sensor is a microwave-based motion detector that emits radio waves and analyzes the reflected signal to detect movement.</h2> It provides real-time motion detection data to luminaire controllers via the DALI protocol, enabling automatic and dynamic lighting adjustments based on occupancy. Unlike <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/products/InfraredSensor">infrared sensors</a>, it can detect motion through glass, plastic, or thin partitions, making it more sensitive and capable of identifying even the smallest movements. Its configurable detection range allows fine-tuning of sensitivity for different environments and applications, ensuring precise performance and energy efficiency in every scenario. The sensor is available in both <a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/products/category/PoleMountedLuminaireControllers/Zhaga">Zhaga-type</a> connector and<a target="_blank" rel="noopener noreferrer" href="https://ditra-solutions.com/street-city/products/category/PoleMountedLuminaireControllers/Wire"> wired versions</a>, offering easy integration into modern lighting systems.

Advanced Microwave Motion Sensing for Smart Lighting


DITRA Smart Microwave Motion Sensor

<h2>The DITRA Wire Daylight Sensor is a professional device designed for accurate measurement of natural light levels and optimization of lighting operation schedules.&nbsp;</h2>It ensures consistent illumination and automatically adjusts lighting scenarios when ambient brightness drops below a predefined threshold due to fog, smog, or other environmental conditions.The sensor transmits data to the central controller or third-party systems via the RS-485 (Modbus-RTU) interface and can operate as a remotely configurable daylight switch controlling one independent lighting group.It is commonly installed on street lighting control cabinets as well as at tunnel entrances and exits, where precise light adaptation is critical for safety and visibility. Depending on the model, the sensor may also include an integrated GPS receiver for location-based configuration.The unit operates from 100–305 V AC and supports remote configuration and diagnostics through the control system. Its ultra-compact IP67-rated enclosure ensures complete protection against dust and water for reliable outdoor operation.&nbsp;

Wired Modbus-RTU Ambient Light Sensor for Outdoor and Tunnel Lighting Control

DITRA Wire Daylight Sensor

<h2>DITRA Meteo Sensor — advanced Modbus-RTU weather sensor for environmental monitoring in Smart City, lighting, and substation control systems</h2>The DITRA Meteo Sensor is a professional environmental monitoring device designed to measure air temperature, relative humidity, and atmospheric pressure with high precision. It continuously collects meteorological data and transmits it to the DITRA control system via the RS-485 (Modbus-RTU) interface.The sensor integrates seamlessly into outdoor lighting and Smart City infrastructure, allowing the control system to automatically adjust lighting behavior based on weather conditions. Data can also be transferred to the central server via GSM or Ethernet using DITRA controllers.The unit operates from a 10–48 V DC power supply and supports remote configuration and firmware updates through DITRA software or third-party platforms.It can be mounted on poles, walls, or other vertical surfaces using dedicated brackets and optionally installed inside a protective enclosure for additional environmental protection.

Compact Modbus-RTU meteorological sensor for precise temperature, humidity, and pressure monitoring in Outdoor and Smart City environments

DITRA Meteo Sensor

Top-3 sensors for adaptive street lighting

When it comes to controlling dynamic outdoor lighting — especially RGB poles installed along long road segments — selecting the right data transmission architecture is critical. Often, lighting control is designed after power lines have already been installed, which raises a key question: How can we manage lighting efficiently and in sync across distances of several kilometers?The answer depends on the chosen communication architecture and its ability to maintain synchronization without cumulative delays.<h2>Why device-to-device retransmission may be insufficient</h2>Some projects use systems where one controller receives the signal and then passes it to the next. This may work for simple actions (on/off, dimming), but becomes a technical bottleneck when managing dynamic RGB scenes, which require high synchronization and signal stability.In a typical wireless DMX control architecture:<ul><li>The master station signal can cover up to 300–500 meters</li><li>With retransmission (hopping), each additional hop adds only ~100 meters of reliable range</li></ul>After 3–4 hops:<ul><li>Data transmission delays increase</li><li>Packet loss and command distortion become more likely</li><li>RGB scenes start to fall out of sync</li><li>Animations degrade or fail to render</li></ul>As a result, when managing long lighting lines with many nodes, cascading DMX signal retransmission becomes unreliable, especially for animations or advanced lighting effects.

<h2>Recommended architectures for long-distance RGB scene control</h2><h3>Fiber optic infrastructure for synchronized RGB scenes</h3>If the project is at the construction stage, and there is a chance to install control lines along with the power infrastructure, fiber optics remains the most technically robust solution:<ul><li>Supports any protocol: DMX, Art-Net, sACN</li><li>Fully synchronized, immune to radio interference</li><li>Long-term reliability in continuous operation</li></ul>While fiber offers the best performance, it's important to note that groundwork and materials significantly increase the budget, often making this solution less feasible for retrofits or existing installations.

<span style="border-color:var(--artdeco-reset-base-border-zero);box-sizing:inherit;margin:var(--artdeco-reset-base-margin-zero);outline:var(--artdeco-reset-base-outline-zero);padding:var(--artdeco-reset-base-padding-zero);vertical-align:var(--artdeco-reset-base-vertical-align-baseline);" data-scaffold-immersive-reader-title="">Choosing the right infrastructure for distributed lighting control

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