
4G PoE IIoT Gateway
1.6.4 Connecting DI/DO Devices
There are one DI and one DO ports together with power terminal block. Please refer to following specification
to connect DI and DO devices.
Mode
Specification
Digital Input
Trigger Voltage (high)
Logic level 1: 5V~30V
Normal Voltage (low)
Logic level 0: 0V~2V
Digital Output
Voltage
(Relay Mode)
Depends on external device
maximum voltage is 30V
Maximum Current
1A
Example of Connection Diagram
21