Clear-Com HX System Frames - Manual (Page 43)

Figure 11: Pin configuration of the GPO connector (DB-25M)
Note:
The general purpose outputs are single-pole double-throw relays with contact ratings of 30
VDC (volts direct current) at 1 ampere.
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
43 Eclipse HX Matrix Frame Installation Guide