Ethernet Relay Module 12v 4CH Network Wifi Switch Modbus RS485 With Case
The 12V 4-channel Ethernet relay module provides network and Wi-Fi control with Modbus RS485 compatibility. Housed in a protective case, it enables remote switching, automation, and integration in smart home, industrial, and IoT applications.
وحدة الريليه 12V ذات 4 قنوات مع إيثرنت توفر التحكم عبر الشبكة والواي فاي، مع توافق Modbus RS485. محمية في صندوق، تتيح التحكم عن بُعد، الأتمتة، والتكامل في تطبيقات المنازل الذكية، الصناعة، وIoT.
The Ethernet 8CH Relay Module is a versatile control device allowing simultaneous management of up to eight relays via Ethernet or Wi-Fi. It supports Modbus RS485 communication for reliable industrial networking and comes enclosed in a protective case for durability. Ideal for smart home automation, IoT projects, and industrial control systems, it ensures safe, remote, and centralized relay operation.
Specification | |||||
| Parameter | DT-R002 | DT-R004 | DT-R008 | ||
| Channel | 2 Channel | 4 Channel | 8 Channel | ||
| Interface | Ethernet, WiFi, RS485(optional), CAN Bus(optional), Wiegand(optional) | ||||
| Size(Relay Board) | 87*68mm | 91.6*86.4mm | 122*87mm | ||
| Size(DIN35 Case) | 90*90*40mm | 115*90*40mm | 145*90*40mm | ||
| Power Supply | 12V/24VDC, 5V/24VAC | ||||
| Power Adapter | 12VDC/1.5A | 12VDC/1.5A | 12VDC/1.5A | ||
| Power Consumption | 2W | 3W | 5W | ||
| Working Temperature | -20~75℃ | ||||
| Storage Temperature | -40~80℃ | ||||
| Protocol | MQTT/MQTTS, Modbus-RTU/TCP/ASCII/UDP, TCP, UDP, HTTP GET CGI, CoAP | ||||
| Quantity Relays | 2DO | 4DO | 8DO | ||
| Quantity Digital Input | 2DI | 4DI | 8DI | ||
| Quantity Wiegand | 1(optional) | 1/2(optional) | 0 | ||
| RTC | NO | NO | NO | ||
| Home Automation | Domoticz, Home Assistant, openHAB, Red-Node | ||||
| Function | Relay Task(Schedule), Input Status, Input Link Relay, Input Link URL, Input/Relay Alias(Name), IP Watchdog, Transparent Transmission, NTP Client, Input Mutual Control, OTA Upgrade | ||||
| Ethernet IP | 192.168.1.100 | ||||
| Web User/PWD | admin/admin | ||||
| WiFi AP IP | 192.168.7.1 | ||||
| WiFi AP SSID/PWD | dtrelaySN/dtpassword | ||||
| WiFi STA IP | 192.168.1.97 | ||||
Setting
Relay Connect
Support protocol
Dingtian-String
Dingtian-Binary
Modbus-RTU., Modbus-ASCII, Modbus-TCP/UDP
CoAP
HTTP GET CGI(control relay, get input/relay status)
Input Mutual Control
MQTT(input/relay status change, report to your MQTT server auto)
Relay Task
Please sync the time on “setting” webpage firstly, you can config when relay ON and when relay OFF automatically
Input Link Relay
Input status change active relay ON/OFF, DELAY, JOGGING(PULSE),FLASH,TOGGLMOTOR
To config “Motor” to control motor (blind)
Input Link URL
Input status changes will active HTTP URL
Input Relay Alias
Rename input/relay to understand better
IP WatchDog
It can ping and reboot other device when network is OFF
Transparent Transmission
Repost data which is from your device through our relay board to your PC from UDP/TCP to RS485/CAN,vice versa
Upgrade
Upgrade new firmware by webpage
Support Domoticz /Home assistant (HA Discover)/openHAB
IP Finder to search device, support different network segment
Connection Diagram
