Lucent Technologies -48V CPS4000/CPS4000 PLUS Cabinet Power System
Issue 13 December 2000 Troubleshooting 9 - 3
Rectifier Flowchart, continued
Yes
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Turn the Input Circuit
Breaker On or Replace Fuse
Check the AC Source
Insert Rectifier in Shelf
Check System Wiring
Replace Shelf
Operate Circuit
Breaker or Fuse
End
Replace Rectifer
(Power is Available at
Unit but no LEDs are Lit.)
Replace Rectifier
(Only TA LED is Lit)
Replace Rectifier
(Green Power On LED
is Lit but No Power)
Do Other Rectifiers
Deliver Power?
Is Rectifier Fuse
or Circuit Breaker
on Line?
Is Rectifier Fully
Inserted in Shelf?
Is DC Power at
TB1 and TB3?
Is DC Power at
Rectifier Connector?
Is Green Power
LED Lit?
Is Output Circuit
Breaker or Fuse On?
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3
Sheet 2
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