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

Figure 16: 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.
Note:
If the GP-OUT port is used on an Eclipse HX-Median matrix fitted with XP
power supplies (part 740101Z) the following filter must be fitted between the
PROC-RCC socket and the cable:
CINCH FA-25PS/1-LF 25W D-type in-line 1000pF filter
(UK supplier: Farnell 111-4108)
If the Eclipse HX-Median matrix is equipped with Power-One power supplies
(part 720379Z) this filter must not be fitted. If this filter is already fitted to
an Eclipse HX-Median matrix and the power supplies are changed to
Power-One units the filter must be removed before the matrix is powered
up.
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.
Each general-purpose output has a relay inside the Eclipse HX-Median
matrix. When a general-purpose output is inactive, the associated common
pin on the GP OUT connector will be shorted to the relevant normally
closed pin. When a general-purpose output becomes active, the short
between the common pin is broken and a new connection is made between
the common pin and the normally open pin.
47 Eclipse HX-Median User Guide