Relay board function instruction as below, any questions, please contact us
ETHWiFi means support Ethernet and WIFI
ETHWiFi RS485 means support Ethernet, WIFI and RS485
ETHWiFi CAN means support Ethernet, WIFI and CAN bus
Support Customized and develop by our company
User manual and programming manual SDK:
//www.dingtian-tech.com/sdk/relay_sdk.zip
Notes: it is finished relay board, don’t support flash your own firmware. If you want to flash firmware, please contact us
![]() Specification |
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Parameter |
DT-R002 |
DT-R004 |
DT-R008 |
DT-R016 |
DT-R032 |
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Photo |
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Interface |
RJ45, WiFi, RS485, CAN, Wiegand(optional) |
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Size(Relay Board) |
87*68mm |
91.6*86.4mm |
122*87mm |
250*107mm |
370*107mm |
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Size(DIN35 Case) |
90*90*40mm |
115*90*40mm |
145*90*40mm |
252*123*43mm |
373*123*43mm |
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Power Supply |
12V/24VDC, 5V/24VAC |
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Power Adapter |
12VDC/1.5A |
12VDC/1.5A |
12VDC/1.5A |
12VDC/2A |
12VDC/3A |
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Power Consumption |
2W |
3W |
5W |
9W |
16W |
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Working Temperature |
-20~75℃ |
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Storage Temperature |
-40~80℃ |
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Protocol |
MQTT, Modbus-RTU/TCP/UDP/ASCII, TCP, UDP, HTTP GET CGI, CoAP |
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Quantity Relays |
2DO |
4DO |
8DO |
16DO |
32DO |
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Quantity Digital Input |
2DI |
4DI |
8DI |
16DI |
32DI |
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Quantity Wiegand |
1(optional) |
1(optional) |
0 |
1 |
1 |
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RTC |
NO |
NO |
NO |
Optional |
Optional |
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Home Automation |
Domoticz, Home Assistant, openHAB, Red-Node |
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Function |
IP Watchdog, Task, NTP Client, Input mutual control, OTA Upgrade |
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Ethernet IP |
192.168.1.100 |
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Web User/PWD |
admin/admin |
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WiFi AP IP |
192.168.7.1 |
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WiFi AP SSID/PWD |
dtrelaySN/dtpassword |
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WiFi STA IP |
192.168.1.97 |
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Support Domoticz/ Home Assistant/ openHAB

Note:
Please keep your computer ip is the same NETWORK SEGMENT as our default ip 192.168.1.100































