SRMS controllers
Versatile controllers for smart cities – data, control, and efficiency in one solution.

Nema controller
Smart Lighting Control and Data Collection for Intelligent Streets

Zhaga controller
Compact and Intelligent Streetlight Control Powered by Data

Cabinet Controller
IO Extender
Seamless Connectivity for Smarter Urban Infrastructure
SRMS Platform Controllers
The Backbone of Smart City Management
SRMS (Smart Remote Management System) platform controllers are smart devices for managing street lighting and other urban infrastructure. They enable real-time monitoring, energy optimization, and remote control to help cities operate more efficiently and sustainably.
Our range includes Nema and Zhaga controllers for different installation standards, as well as an I/O extender for expanded control of cabinets and connected systems. All controllers support automation, data collection, and seamless integration with the SRMS platform—forming a reliable foundation for intelligent city infrastructure.
Remote and wireless lighting management is ensured by the SRMS platform, which operates based on cloud technologies. The platform acts as a lighting control center, allowing outdoor lighting options to be pre-configured, monitored and adjusted in real time. One can access and manage the outdoor lighting from anywhere with an internet connection using a user-friendly web-based interface.
One controller with GSM module can typically serve 30 to 100 regular controllers, depending on location. As the lighting needs changes and the luminaire network expands, additional controllers can be easily integrated into the existing network.

Nema luminaire controller
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Designed for installation in outdoor luminaires with a Nema Socket, enabling remote monitoring, control, and telemetry.
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Managed with the SRMS Platform, TELEKONTA’s smart resource management system.
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Designed to support and integrate with external sensors.
Key Features:
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Built-in local cellular radio communicator;
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Integrated real-time clock and astronomical calendar;
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Two versatile external communication/control interfaces (software-selectable);
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Remote firmware updates (OTA);
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Built-in GPS receiver (optional);
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4G LTE GSM communicator with integrated GPS (optional).

Nema controller models:
Model | Thread Low-Power Mesh | GPS Auto-Location | GSM Cellular Modem |
|---|---|---|---|
SRMS Nema T25-GPS-GSM | ✔ | ✔ | ✔ |
SRMS Nema T25-GPS | ✔ | ✔ | |
SRMS Nema T25 | ✔ |
Technical Information:
Parameter | Value |
|---|---|
Enclosure Type | Nema7, ⌀83,8mm, h76mm, UV resistant plastic |
Environmental Protection Class | IP66, IK09 |
Operating Temperature | -40°C to +70°C |
Relative Humidity | 100% |
Operating and Switching Voltage | 180–250VAC, 50–60Hz |
Standby Power Consumption | <0.7W |
Maximum Continuous Load | 2A (500W) |
Voltage Surge Protection | 6kV |
Load Current Regulation | PWM, 0–100% |
Control Interface Dimming | 0–100%, 8-bit, 0–10V and DALI |
Measured, Monitored, and Logged Parameters | Voltage, current, power, temperature, ambient light |
Parameter Measurement Accuracy | 12-bit |
Integrated DALI Power Supply | 16V, 100mA output and protection |
Supported External Interface Protocols | DALI, DALI-2, 4-20mA, Relay, 0-10V, M-Bus, IO, others |
Analog Interface Measurement and Control Accuracy | 8-bit |
Local Mesh Radio Communicator | IEEE 802.15.4 (ZigBee, Thread, BLE), 2.4GHz |
GSM Communicator (optional) | GPRS, LTE, NBIoT options |
Dimensions of Nema:

Zhaga luminaire controller
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Designed for installation in outdoor luminaires with a Zhaga Socket, enabling remote monitoring, control, and telemetry via the DALI/SR bus.
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Managed with the SRMS Platform, TELEKONTA’s smart resource management system.
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Designed to connect to the control center through one or more LTE modems.
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Designed to support and integrate with external sensors.
Key Features
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Built-in local cellular radio communicator;
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Integrated real-time clock and astronomical calendar;
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Two versatile external communication/control interfaces (software-selectable);
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Full DALI/DALI-2/SR support for transmitting all luminaire ballast data (e.g., active/reactive energy, usage hours);
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Remote firmware updates (OTA);
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Built-in GPS receiver (optional);
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4G LTE GSM communicator with integrated GPS (optional).

Zhaga Controller Models
Model | Thread Low-Power Mesh | GPS Auto-Location | GSM Cellular Modem |
|---|---|---|---|
SRMS Zhaga T25-GPS-GSM | ✔ | ✔ | ✔ |
SRMS Zhaga T25-GPS | ✔ | ✔ | |
SRMS Zhaga T25 | ✔ |
Technical Information
Parameter | Value |
|---|---|
Enclosure Type | Zhaga Book 18, Ø81 × 32.5 mm |
Environmental Protection Class | IP66, IK09 |
Operating Temperature | -40°C to +70°C |
Relative Humidity | <95% |
DALI Device Classification | Type A, B, C, D (programmable) |
Power Supply Voltage | 9–40 VDC (via DALI AUX or DALI BUS) |
Built-in DALI-BUS Power Supply | Yes, powered by DALI AUX |
Standby Power Consumption | <0.5 W |
Maximum Power Consumption (LTE option, TX) | <2 W |
Voltage Measurement Resolution | DALI, AUX, ASI (0–40 V) |
Temperature Measurement Range | -40°C to +70°C |
Standard Light Measurement Range | 0–3,000 lux @6500K |
Optional Light Measurement Range | 0–65,000 lux |
Accelerometer (Impact/Tilt Detection, optional) | ±16G, 3D |
Number of Input/Output Interfaces | 2 |
Interface Communication Functions | DALI, DALI-2, SR, DALI ASI, other (programmable) |
Interface Alternative Functions | Output, analog/digital input, other |
Local Wireless Communicator | IEEE 802.15.4 (ZigBee, Thread, BLE), 2.4 GHz |
GPS Receiver (optional) | Optional standalone or integrated with LTE modem |
4G LTE GSM Communicator (optional) | LTE Cat 1, EU, nano-SIM |
Dimensions of Zhaga:

I/O Extender - cabinet controller
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The IO Extender is a DIN-Rail-mounted industrial automation module, designed to expand I/O capabilities while offering programmable logic control (PLC) functionality.
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Engineered for seamless integration, the device delivers high-performance automation in an ultra-compact 22.5mm DIN-Rail form factor.
Ideal Applications
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Industrial Automation – Expand PLC capabilities with high-density I/O.
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Lighting Control – Seamless integration with DALI, DALI-2 and DMX (RGB) protocols.
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Smart Cities & Infrastructure – IoT-enabled connectivity for remote management.
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Process Monitoring & Energy Management – Real-time data collection & edge processing.

Key Features
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High IO Density in a Compact Form
More input and output connections in a small-sized device, making it powerful yet space-saving. -
Advanced Connectivity for Smart Industrial Control
Easily connects with different systems, sensors, and networks, allowing smooth communication between devices. -
Software-Defined IO Operation Modes
Each connection can be customized through software to perform different tasks, making the device highly flexible. -
Intelligent Control & Edge Processing
Can process data locally before sending it elsewhere, reducing delays and improving efficiency. -
Smart Monitoring & Remote Access
The system can be managed and monitored from anywhere, making maintenance and control more convenient. -
Industrial-Grade Durability & Reliability
Designed to withstand tough environments, extreme temperatures, and continuous use without failure.
Technical Information:
Parameter | Value |
|---|---|
Mounting Type | DIN-Rail, 100 × 110 × 23 mm |
Number of Screw Contacts | 24 (6 × 4), field-removable |
DIN Rail Bus Connector | Yes, RS485 |
Environmental Protection Class | IP21 |
Operation Temperature (All Functions) | -40°C to +70°C |
Operation Temperature (LCD Panel) | -10°C to +70°C |
Input Voltage Range (Any Pin) | -0.5V to +40V DC |
Total Max Current (GND & VCC Pins) | 8A |
Nominal power supply | 9-30 VDC |
Power Consumption (No Load) | <0.5W |
DALI PSU Option | Unpowered |
DALI Mode | Master, Slave, DT7 |
DALI Protocol Support | DALI-1, DALI-2, SR, Custom |
RS485 Ports Bias, Termination | None |
Communication Speed | Up to 250 Kbit |
Communication Modes | Master, Slave, Custom |
Supported RS485 Protocols | Modbus RTU, IEC 61850, DMX512, NMEA, Custom |
External 2G-5G Modem Support | Yes, RS485, AT-Commands |
Number of Individually Programable IO | 16 |
Isolation | Not Isolated |
Output Type | Power MOSFETs |
Output Polarity | VCC/GND, Programmable |
Max Output Current per Single I/O | 2A |
Pulse Generation | Yes, PWM, 1ms Resolution |
Relay Activation Counter | Yes, 32-bit |
Isolation | Not isolated |
Input Polarity | VCC/GND, Programmable |
Pulse Counter Mode | Yes, 32-bit, >1ms |
Isolation | Not Isolated |
Full-Scale Measured Voltage | 3VDC, 10VDC (Programmable) |
Full-Scale Resolution | 12-bit |
Resolution in 333mVAC Mode | 8-bit (Positive Half-Sine Only) |
Resistance Measurement with Internal BIAS | 0-100KΩ, 5% Accuracy |
Input Scaling | Yes, Programmable |
Front Panel Options | None, LCD Touch Screen, Custom |
Optional LCD Touch Screen | 1.14”, 135×240 pixels, 24-bit color |
Operation Temperature (LCD Panel) | -10°C to +70°C |
PLC Mode Option | Yes, Proprietary Scripting Language |
PLC Variables | 4 KB |
PLC Program Flash Memory | 16 KB |
Local, PC Connection | Yes, via USB-RS485 adapter, Modbus |
Local, LCD/Touch Panel | Yes, limited functionality |
Remote via 2G-5G Modem | Yes, via Modbus commands |
OTA Firmware Upgrade | Yes |
