User's Manual

Cellular M2M-IoT Gateway
IOG761AM-0P001 Quick Installation Guide 13
2.1.3 Connecting Power
The IOG761 series can be powered by connecting a power source to the terminal block. It
supports dual 12VDC power inputs, 30VDC digital input and output
3
. Following
picture is the power terminal block pin assignments. Please check carefully and connect
to the right power requirements and polarity.
There are a DC12V/2A power adapter in the package for you to easily connect DC power
adapter to this terminal block.
2.1.4 Connecting DI/DO Devices
There are a DI and a 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: 3.3V~30V
Normal Voltage (low)
Logic level 0: 0V~3.0V
Digital
Output
Voltage
(Relay Mode)
Depends on external device
maximum voltage is 30V
Maximum Current
1A
Example of Connection Diagram
3
If both of power source 1 and power source 2 are connected, the device will choose power source 1 first. If power
outage occurred from power source 1, this device will switch to power source 2 automatically and seamlessly.
PWR1
GND
PWR2
GND
DI+
DI-
DO+
DO-