Clear-Com HX System Frames - Manual (Page 30)

shorted to the relevant normally closed pin. When a general-purpose output becomes active,
the short between the common pin and the normally closed pin is broken and a new
connection is made between the common pin and the normally open pin.
Important note:
If the GP-OUT port is used 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)
A shielded cable should be used.
Figure 7: Pin configuration of the GPO connector (DB-25M)
DB-25M connector
10
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Normally open
Common
RELAY6
Normally closed
Normally open
Common
RELAY5
Normally closed
Normally closed
Normally open
Common
RELAY7
Common
RELAY8 Normally closed
Normally open
Normally open
Normally closed
Common
RELAY1
Normally closed
Common
RELAY2
Normally closed
Common
RELAY3
Normally closed
Common
RELAY4
Normally open
Normally open
Normally open
Digital ground
30 Eclipse HX-PiCo User Guide