User's Manual

INDUSTRIAL 4G LTE CELLULAR ROUTER - UM V1.1.8
16
Connecting I/O Ports
(1) Digital Input DI1 & DI2
The unit has four terminals on the terminal block for the Digital inputs.
 INPUT : +10 to +30V for state "1" (Q1 On)
 INPUT : +0 to +3V for state "0" (Q1 Off)
Note: Q1 is a bidirectional component.
(2) Digital Output – Alarm Contacts
The unit has 2 terminals on the terminal block for the Alarm Contacts. Photo relay output
with current capacity of 500mA/50VDC maximum.
Pin
Description
Alarm -
Alarm negative signal output
Alarm +
Alarm positive signal output
Pin
Description
DI1_I1
Digital INPUT 1
DI1_COM
DI2_I2
Digital INPUT 2
DI2_COM