Telex RTS OMS OMNEO Main Station Advanced Digital Partyline Intercom Base (5-Pin Female) - Manual (Page 21)

OMS OMNEO Main Station Cables and cable requirements | en 21
Bosch Security Systems, LLC Technical Manual 01-2021 | 03 | F.01U.380.820
Pin Assignment Silkscreen
1 RELAY 1 common C
2 RELAY 1 normally closed NC
3 RELAY 1 normally open NO
4 RELAY 2 common C
5 RELAY 2 normally closed NC
6 RELAY 2 normally open NO
7 OPTO 1 anode A+
8 OPTO 1 cathode K-
9 Chassis ground
10 OPTO 2 anode A+
11 OPTO 2 cathode K-
12 Chassis ground
13 RELAY 3 common C
14 RELAY 3 normally closed NC
15 RELAY 3 normally open NO
16 RELAY 4 common C
17 RELAY 4 normally closed NC
18 RELAY 4 normally open NO
19 OPTO 3 anode A+
20 OPTO 3 cathode K-
21 Chassis ground
22 OPTO 4 anode A+
23 OPTO 4 cathode K-
24 Chassis ground
Tab. 7.10: GPIO Connector - J9