Clear-Com HX System Frames - Manual (Page 47)

Figure 14: Wiring the Alarm I/O DB-9F to the Alarm Relay connector
Figure 15: Double-pole double-throw alarm relay
D
General-Purpose Outputs Connector (GP OUT)
A GPO can be programmed to mute a speaker, to turn on an applause light,
to turn on a door lock, or to perform a variety of other functions. For
example, to get the attention of a panel operator working in a high-noise
environment such as a control booth, a relay can be programmed to switch
on a light at the operator panel each time an incoming call is received, to
ensure that the call is not missed.
The DB-25 connector labeled GP OUT connects the matrix to eight double-
pole double-throw (DPDT) relays with contact ratings of 30 VDC at 1A.
47 Eclipse HX-Delta User Guide