Maintenance Guide

Cobham Wireless
idDAS Installation and Maintenance Guide 00109GU Rev. 2.0
Page | 93
idRU Public Safety External Alarms and Relay 5.7.2
Connections
The dry-contacts alarms pin-out and interface have been modified for idRU public safety repeater models for
NFPA compliance. The public safety compliant idRUs support the following dry-contact alarms:
x Two external alarms – Ext Alarm 1 and Ext Alarm 2. These are configured via the External Alarms hover-
menu option.
x Antenna Disconnect alarm – provides indication of the antenna connection status. This alarm does not
required configuration.
x General alarm – provides indication if any idRU alarms are triggered. The associated alarms can be
filtered.
5.7.2.1 idRU Alarms Connections and Pin-out
The idRU public safety alarms interface is implemented via an external, binder-type circular connector. The
mating cable assembly is provided in the accessories kit of each remote.
Figure 5-36. idDAS PS NFPA RRU Front Panel
Figure 5-37. Alarms 10 Pin Circular Connector
Table 5-1. RRU Dry-contact Alarms Connector
PIN#
SIGNAL NAME
WIRE COLOR
1
Ant Disconnect Normally Open
Orange
2
Ant Disconnect Normally Closed
Blue
3
Ant Disconnect Common
Green
4
General N.O.
Red
5
General Alarm Normally Closed
Brown
6
External alarm 1 (A)*
White
7
External alarm 1 (B)*
Yellow
8
General Alarm Common
Black
9
External alarm 2 (A)*
Grey
10
External alarm 2 (B)*
Purple
*If connected, it is required to configure External Alarms 1 and 2 via the web management application as described in
Section 5.7.2.2. The General and Antenna Disconnect alarms do not require configuration.
Dry Contact
Alarms binder
connector