365-575-102 Detailed Level Procedure: DLP-551
Issue 8.0, July 2002 Page 3 of 4
Power Up an Optical Network Element
!
CAUTION:
Use a static ground wrist strap whenever handling circuit packs or
working on a network element to prevent electrostatic discharge (ESD)
damage to sensitive components.
1. Make sure the circuit breakers are off or the fuses are removed from the NE.
Result: This eliminates any chance of one person powering up at
the Battery Distribution Feeder Bay (BDFB) while someone else
could be exposed to electrical power at the NE.
2. Turn on the power supply to this NE at the BDFB.
3. Continue with the next step for the shelf containing the system controller circuit
pack.
4. Power up the shelf and verify that both A and B power supplies are good as
follows:
A. Turn on circuit breaker A or insert fuse A and press inward and upward.
NOTE:
If the green power on the LED is not lit, check for a reversal on the power
feeder and verify that there is voltage at the connector.
B. Turn off circuit breaker A or remove fuse A.
C. Turn on circuit breaker B or insert fuse B and press inward and upward.
NOTE:
If the green power on the LED is not lit, check for a reversal on the power
feeder and verify that there is voltage at the connector.
D. Turn on circuit breaker A or insert fuse A and press inward and upward.
Result: You have verified that both A and B power supplies are good
and are now turned on.
5. Wait for all of the circuit packs on this shelf to finish booting, which will be
indicated by the following:
• All red LEDs are off
• For packs with green LEDs, they are on steadily
6. Repeat Steps 3 and 4 for all other shelves that contain controller circuit packs.
7. Repeat Step 3 for all shelves that do not contain any controller circuit packs.
8. Log into the NE with a craft interface terminal and check alarms.
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