4RF Aprisa LTE - Page 203

Managing the LTE | 203
Aprisa LTE User Manual 2.1
Alarm Input
Option
Function
Low
The alarm is active low i.e. voltage less than 7 VDC, a grounded or
open contact on the port will cause an active alarm state
High
The alarm is active high i.e. voltage higher than 10 VDC on the port
will cause an active alarm state
Alarm Output
Option
Function
Low
The alarm is active low i.e. the active alarm state will generate a
ground contact output
High
The alarm is active high i.e. the active alarm state will drive the
output with the same voltage as the LTE supply input.
Current State
The Current State shows the current state of the alarm.