Alarm Interface Pins - Nortel Internet BWA System 3200 User Manual

4-4 Trouble clearing procedures

Alarm interface pins

The alarm interface pins refer to pins 12, 18 and 23 from the 31-pin interface
on the ODU (see
Table 4-2
Pin assignments for the 31-pin interface
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Internet BWA System 3200
Table 4-2).
Description
Case Gnd
Reserved
TX Tributary 1 Tip
TX Tributary 1 Ring
RX Tributary 1 Tip
RX Tributary 1 Ring
RS 485+
TX Tributary 2 Tip
TX Tributary 2 Ring
RX Tributary 2 Tip
RX Tributary 2 Ring
Programmable Alarm Relay
(NC)
RS 485-
TX Tributary 3 Tip
TX Tributary 3 Ring
RX Tributary 3 Tip
NTXXXXXX Rel 3.0 Draft October 2000
Pin Description
17 RX Tributary 3 Ring
18 Summary Alarm relay (NC)
19 TX Tributary 4 Tip
20 TX Tributary 4 Ring
21 RX Tributary 4 Tip
22 RX Tributary 4 Ring
23 Alarm relay Common (CC)
24 DC Power Conn#1
25 RS422 RX+
26 RS422 RX-
27 DC Power Conn#2
28 RS422 TX-
29 RS422 TX+
30 DC Power Conn#2
31 DC Power Conn#1