Proroute
GEM
2M
4G
Router
GEM-2M series User Manual
16
2.1.4 Connecting DI/DO Devices
There are a DI and a DO ports together with locating at the left side of device. 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~2.0V
Digital
Output
Voltage
(Relay
Mode)
Depends
on
external
device
maximum
voltage
is
30V
Maximum
Current
1A
Example of Connection Diagram
2.1.5 Connecting Serial Devices
The GEM-2M
provides one standard serial port RJ12 female connector and one RJ12 to DB9
conversion cable. Connect the serial device to the unit DB9 male port with the right pin
assignments of RS-232/485 are shown as below.
