Nortel DMS 100 Series Maintenance Manual page 117

At the CPDC
21 Locate the circuit breaker that powers the RSC-M shelf and unit (0 or 1).
22 Determine if the circuit breaker is ON or OFF.
If the circuit breaker
is OFF
is ON
23 Set the circuit breaker to ON.
At the front of the RSC-M cabinet
24 Push the power switch on the converter up. Hold the power switch in the
RESET position as you set the circuit breaker to ON.
25 Release the power switch on the converter to the ON position.
If the circuit breaker
remains ON and the CONVERTER FAIL LED is lit
turns OFF again and the CONVERTER FAIL LED
remains lit
remains ON and the CONVERTER FAIL LED is not
lit
At the front of the RSC-M cabinet
26 Set the circuit breaker to OFF.
27 Replace the power converter card. Perform the correct procedure in the
Card Replacement Procedures . Complete the procedure and return to this
point.
28 Determine the state of the power converter you replaced. Determine the state
of the associated circuit breaker.
If the circuit breaker
is OFF, and the CONVERTER FAIL LED is lit
remains ON, and the CONVERTER FAIL LED is lit step 30
remains ON and the CONVERTER FAIL LED is not
lit
DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up
RSC-M cabinet with MSP shelf major
RSC-M alarm clearing procedures
Ext RSC-M/RCO2
Do
step 23
step 24
5-7
(continued)
Do
step 26
step 29
step 34
Do
step 29
step 34