DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127 Issue 1
August 1997
Maintenance Object Repair Procedures

Page10-268CARR-POW (Carrier Port Power Unit) for DC-Powered Systems

10
Figure 10-21. Power Distribution Unit for DC-Power ed Systems (PDU 58890CF-1)
A-R B-R C-R D-R E-R
FLTA FLTB
A-L B-L C-L D-L E-L
OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF
ON ON ON ON ON ON ON ON ON ON ON ON
TB2
-48VDC
Return
OFF OFF OFF
ON ON ON
2A
Circuit
Breakers Front View
Ring Generator
Power Distribution Unit
Main
On/Off
Switch
Back View
-48VDC
A
-48VDC
B
CB8 CB9 CB10 CB11 CB12CB7CB2 CB3 CB4 CB5CB1 CB6