
Exalt Installation and Management Guide
s-Series Digital Microwave Radios
66
201511
2008-02-27
Alarm Connector
The Alarm connector provides two alarm outputs that can be connected to external alarm collection
equipment. The connector also allows connection of up to two external alarm sources, where the radio
reports the status of these connections through the radio network management. Output alarm
connections are ‗Form C‘ style connections, performing alarm logic based on either Normally
Opened (NO) or Normally Closed (NC) connections compared to a Common (C) pin. Input alarm
connections can be TTL logic or NO/NC style relay closures.
Figure 40
Alarm Connector
Alarm Output 1 is in alarm any time that there is a traffic-impacting alarm condition (Major). Alarm
Output 2 is in alarm any time that there is an alarm that is not traffic-impacting (Minor).
The administrator can set the polarity of the alarm inputs.
Pin
Function
1
Alarm Output 1 - NO
2
Alarm Output 1 - NC
3
Ground (for Alarm Inputs)
4
Alarm Output 2 – NO
5
Alarm Output 2 – NC
6
Alarm Output 1 – Common
7
Alarm Input 1
8
Alarm Input 2
9
Alarm Output 2 – Common
5 4 3 2 1
9 8 7 6
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