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.

2 to 32-channel output optionsUseful for field deployment, cabinet integration, platform access or project-based system selection.
LTE(4G) remote access for distributed sitesUseful for field deployment, cabinet integration, platform access or project-based system selection.
RS485 Modbus RTU integrationUseful for field deployment, cabinet integration, platform access or project-based system selection.
Used for smart lighting, pumps, valves, cabinets and remote equipment controlUseful for field deployment, cabinet integration, platform access or project-based system selection.

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

Communication AccessSelect RS485, Ethernet, 4G, WiFi, HTTP or MQTT according to the device type, site network and platform integration requirements.
Field DeploymentProducts can be combined by control loop, sensor point, weighing point, meter circuit, cabinet layout and project maintenance workflow.
Platform ManagementRemote status viewing, schedules, logs, alarms, data curves and account permissions can be configured according to project requirements.
Customization ScopeProject configuration can cover model selection, interface coordination, platform deployment, panel interaction and integration documents.

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

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.