Zhenming Electronics
4G network relay controller

ZMRL QL Series Network Relay Controller

LTE(4G) network relay controller series covering 2, 4, 6, 8, 12, 16, 24 and 32-channel remote control with RS485 Modbus RTU and DIN-rail installation.

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ZMRL QL Series Network Relay Controller product image

Product Positioning

LTE(4G) network relay controller series covering 2, 4, 6, 8, 12, 16, 24 and 32-channel remote control with RS485 Modbus RTU and DIN-rail installation.

Capability 012 to 32-channel output options
Capability 02LTE(4G) remote access for distributed sites
Capability 03RS485 Modbus RTU integration
Capability 04Used for smart lighting, pumps, valves, cabinets and remote equipment control

Typical Applications

The page is written for engineering companies, system integrators, device manufacturers and B2B project procurement teams.

Smart lighting and grouped circuit controlIndustrial equipment status acquisition and remote switchingLivestock monitoring, weighing and equipment linkageEnergy monitoring, operation records and remote maintenancePrivate deployment and customer system integration

Selection Notes for B2B Projects

Control ObjectPlan the product by lighting circuit, pump, fan, cabinet output or equipment switching object instead of only by channel count.
Protocol and PlatformCheck whether the project needs RS485, Ethernet, LTE(4G), MQTT, Modbus, grouped control, schedules, logs or private platform deployment.
Circuit PlanningSeparate high-power, inductive and frequently switched loads into clear circuits and match controller selection with the cabinet design.

Integration and Deployment

Circuit ObjectsMap each output to a named lighting, pump, fan, valve, cabinet or equipment circuit and retain a clear control boundary.
Local OperationUse dry-contact inputs, wall panels, schedules or supported local rules for field operation when the selected model provides them.
Network OperationsUse the communication interfaces of the selected model for status, remote control, action records and multi-site management.
Electrical CoordinationCoordinate relay loads, contactors, protection, cabinet wiring and manual override with the electrical design.

Protocol and Lighting Strategy Notes

Relay controller projects can be combined with DMX512 lighting control, sunrise and sunset schedules, Modbus integration, MQTT access, platform management and operation logs.

DMX512Sunrise sunset schedulesModbusMQTTLoad selectionOperation logsSmart lightingPrivate deployment
Lighting protocol solutionProtocol integration solution

Remote Device Intercontrol

Supported models and firmware can map a remote input, sensor or business event to controller outputs at another site for one-to-one or one-to-many linkage. Applications include water towers and pumps, parking counts, warehouse alarms, irrigation and chain-store equipment.

View remote intercontrol solution

Selection FAQ

What lighting or control projects are suitable?These relay controllers are used for smart lighting, control cabinets, equipment switching, parks, streets, campuses, hospitals, cinemas and exhibition halls.
How should relay channels be selected?Channel count should follow the number of lighting circuits, equipment groups, cabinet layout and expansion margin.
Can the controller support remote operation?Depending on the model, RS485, Ethernet, 4G, MQTT, TCP, UDP or platform access can support remote control and status viewing.

Project Inquiry

Share the application, communication method, quantity and integration requirements so we can prepare a suitable product combination.

Email: djbgreen@163.com

Official Platform and Service Links

Open the Zhenming IoT platform, product documentation or official Taobao store.

IoT PlatformDevice access, remote control, status monitoring and operation management.Open link →Product DocumentationProduct manuals, communication instructions and integration documents.Open link →Official Taobao StoreView products and contact the manufacturer through the official store.Open link →