Cisco ONS 15454 SDH Specifications Page 55

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Cisco ONS 15454 SDH Installation and Operations Guide, R3.3
May 2002
Chapter 1 Hardware Installation
EFCA
Caution Do not apply power to the ONS 15454 SDH until you complete all installation steps.
1.8 EFCA
The ONS 15454 SDH has an electrical facility connection assembly (EFCA) located at the top of the
shelf. The EFCA provides connection for installing external alarms, timing input and output, and craft
interface terminals. This section describes the EFCA and the pin assignments for the field.
1.8.1 Alarm Installation
The MIC-A/P card provides connection for alarm contacts into and out of the node. The pin connectors,
signal names, and functions are listed in Table 1-3.
Table 1-3 Alarm Pin Assignments
DB 62 pin connector Signal name Function
1 ALMCUTOFF- Alarm Cutoff
2 ALMCUTOFF+ Alarm Cutoff
3 ALMINP0- Alarm input pair number 1
4 ALMINP0+ Alarm input pair number 1
5 ALMINP1- Alarm input pair number 2
6 ALMINP1+ Alarm input pair number 2
7 ALMINP2- Alarm input pair number 3
8 ALMINP2+ Alarm input pair number 3
9 ALMINP3- Alarm input pair number 4
10 ALMINP3+ Alarm input pair number 4
11 EXALM0- Extra Alarm 0
12 EXALM0+ Extra Alarm 0
13 FGND Ground
14 EXALM1- Extra Alarm 1
15 EXALM1+ Extra Alarm 1
16 EXALM2- Extra Alarm 2
17 EXALM2+ Extra Alarm 2
18 EXALM3- Extra Alarm 3
19 EXALM3+ Extra Alarm 3
20 EXALM4- Extra Alarm 4
21 EXALM4+ Extra Alarm 4
22 EXALM5- Extra Alarm 5
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