8
Appendix D — Connector Pin Outs
8.1
Alarm I/O Connector and RS485 Connector Pin Outs
Siemens Building Technologies
Fire & Security Products
Pin Number
Pin Assignment
1
RS485 RX-/TX-
2
Alarm Output 3
3
Alarm Output 1
4
Alarm Reset
5
Alarm Input 16
6
Alarm Input 14
7
Alarm Input 12
8
Alarm Input 10
9
Ground
10
Alarm Input 7
11
Alarm Input 5
12
Alarm Input 3
13
Alarm Input 1
Appendix D — Connector Pin Outs
Pin Number
Pin Assignment
14
RS485 RX+/TX+
15
Alarm Output 2
16
Alarm Output 4
17
Ground
18
Alarm Input 15
19
Alarm Input 13
20
Alarm Input 11
21
Alarm Input 9
22
Alarm Input 8
23
Alarm Input 6
24
Alarm Input 4
25
Alarm Input 2
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