Lucent Technologies -48V CPS4000/CPS4000 PLUS Cabinet Power System
Issue 13 December 2000
Alarms, Controls, and Displays 7 - 4
Control Units
Overview
The control unit (ES646, ES646B, ES648A/B/C/BZ MCUs or ES643
ACU) administers alarm processing, rectifier On/Standby control, Plant
Battery Test, and plant voltage adjustments in the CPS -48V plant. One
control unit supports a one-, two-, or three-shelf plant.
Features
Table 7-A summarizes the ES646, ES647, and ES648 features for
primary and secondary outputs.
Table 7-A: Control Unit Features for Primary
and Secondary Outputs
Feature
ES646, ES646B, ES648A/B/C/BZ
ES647
Primary
Secondary
Primary
Secondary
Plant meter (volts)
Yes
No
No
No
Plant meter (amperes)
Yes
No
No
No
Test point (volts)
Yes
No
Yes
No
Remote test (volts)
Yes
No
No
No
Remote test (amperes)
Yes
No
No
No
Temperature compensation
Yes
No
Yes
No
Plant voltage adjust
Yes
No
Yes
No
PMJ LED
Yes
Yes
Yes
Yes
PMN LED
Yes
Yes
Yes
Yes
ACF LED
Yes
N/A
No
No
MJF LED
Yes
Yes
No
No
BD LED
Yes
N/A
No
No
Plant normal LED
Yes
Yes
Yes
Yes
Rectifier On/Standby
Yes
N/A
Yes
N/A
PMJ office alarm
Yes
Yes
Yes
Yes
PMN office alarm
Yes
Yes
Yes
Yes
Auxiliary PMJ Alarm
Yes
Yes
Yes
Yes
Auxiliary PMN Alarm
Yes
Yes
Yes
Yes
ACF office alarm
Yes
N/A
Yes
N/A
2ACF/LV office alarm
Yes*
No
Yes
No
BD office alarm
Yes
N/A
Yes
No
MJF office alarm
Yes
Yes
Yes
Yes
Plant battery test
Yes
N/A
Yes
Yes
LED test
Yes
Yes
No
No
* The ES646, ES648A, ES648C, and ES647 have a 2ACF alarm; ES646B, ES648B, and
ES648BZ have an LV alarm.
