ADC PCS-822, Technical Practice, Page: 21 / 46

January 6, 2003 SCP-PCS822-021-03H
ADC Telecommunications, Inc.
11
A
LARMS
The Management Unit supports the input and output alarms that are provided by the PCS-822. It also supports
alarm relay contacts for reporting various alarm events (
Figure 11 ). Refer to the appropriate Management Unit
documentation for information on provisioning these alarms.
Figure 11. Alarm Circuits
The Field Shelf Fan Unit and Management Unit must be installed in the Field Shelf to support alarm
reporting.
Sense
Sense
Sense
AC Power
Alarm
Critical
Alarm
Major
Alarm
Minor
Alarm
Door
Alarm
Door
Alarm
Fan
Alarm
External
Miscellaneous
Alarm
Output
Input
Input
Input
To
Management
Unit
Fan
Sense
Output
Output
Output
Output
Output
Output
Fan
Unit