Pstn Port (Rj11) - Simoco Xfin Blade Service Manual

9 +13.6v unswitched
10 Tx key command
11 Alarm 1
12 0v
13 Alarm 2

3.5.10 PSTN Port (RJ11)

This is a 6/4 RJ11 socket with the following pins connected for PSTN operation:
Pin Description
1 NC
2 NC
3 Tip (Snoop+)
4 Ring (Ring-)
5 NC
DESCRIPTION
22 Rx- line connection
A
23 Rx- line connection B
24 Squelch
25 I/O 1
26 I/O 3
Pin Description
6 NC
XFIN-BLADE-SM
35 Channel line C5
36 Channel line C3
37 Channel line C1
1 6
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