Telco Alarm Leds; Telco Alarm Interface; Hot Swap Interface; Table 7-8 Hot Swap Interface Pin Out - Emerson AXP1620 Installation And Use Manual

Telco Alarm LEDs

7.6.2
7.6.3
7.7
AXP1620 Installation and Use (6806800E23E)
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Telco Alarm LEDs
These LEDs are used to indicate the presence of the critical, major, and minor alarms. When a
LED is lit, the respective alarm is active. A blinking LED signals an alarm cut-off state which is
initiated by pressing the alarm cut-off button when an alarm is active.

Telco Alarm Interface

The SAM provides a front-panel alarm connector, which is a standard DB-15 connector with the
following pin assignments:

Table 7-8 Hot Swap Interface Pin Out

Pin Description
1 Minor Alarm Reset +
2 Minor Alarm Reset -
3 Major Alarm Reset +
4 Major Alarm Reset -
5 Critical Alarm - NO
6 Critical Alarm - NC
7 Critical Alarm - COM
8 Minor Alarm - NO
9 Minor Alarm - NC
10 Minor Alarm - COM
11 Major Alarm - NO
12 Major Alarm - NC
13 Major Alarm - COM
14 Pwr Alarm - NO
15 Pwr Alarm - COM

Hot Swap Interface

The SAM provides a hot swap interface allowing the SAM to be replaced without powering down
the shelf. The hot swap interface is implemented using the shelf manager mezzanine CPLD
device. The interface is composed of three components:
Injector/Ejector handle switch
Presence signal indicating that the SAM is fully seated in its backplane connector
HS LED to indicate safe to remove state
Shelf Management Alarm Module
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