Total Access 1224 Quad T1 IMA 24-Port DSLAM Installation and Maintenance Practice
3-12 61179621L1-5C
Alarm Connections
The Total Access 1224 provides an Type SP15 connector (see Figure 3-8) with three auxiliary
alarm inputs and three alarm outputs (Major, Minor, and Critical). If load shedding is active
then the Critical alarm output will be active. Alarm inputs are activated by shorting A and B
contacts (closing an externally connected relay). The outputs provide both normally open and
normally closed pins (through internal relay contacts) for proper operation with a variety of
alarm panels. Each alarm event generates an autonomous TL1 message that is transmitted
via the in-band management channel to a monitoring device.
A cable with a Type SP15 male connector on one end and a stub at the other end is available
(P/N 1196DB901L1) for wire-wrap connections to an alarm panel.
Figure 3-8. Total Access 1224 Alarm Connection
The alarm pinouts are shown in Table 3-3.
Table 3-3. Alarm Pinouts
Pin Color Contact Description
1Red Alarm 3 Input - A
2Red/Black Alarm 1 Input - B
3Red/White Critical Alarm COM
4Orange Minor Alarm COM
5Orange/Black Major Alarm COM
6White Alarm 3 Input - B
7White/Black Alarm 2 Input - A
8Black Critical Alarm NC
9Black/White Minor Alarm NC
10 Blue/Black Major Alarm NC
11 Blue/White Alarm 2 Input - B
12 Blue Alarm 1 Input - A
13 Green/Black Critical Alarm NO
14 Green/White Minor Alarm NO
15 Green Major Alarm NO
FAN MODULE
1179675L1
3.0
ADSL+POTS PORTS 1-24 EXPANSION
OUT
1179621L1
POTS PORTS 1-24

Alarm Connection