DLP-550: Detailed Level Procedure 365-575-102
Page 12 of 16 Issue 8.0, July 2002
Option 3: Replace a Power Line Filter Module
!
CAUTION:
Use a static ground wrist strap whenever handling circuit packs or working on an
FT-2000 network element to prevent electrostatic discharge damage to sensitive
components.
!
CAUTION:
DO NOT remove the fuse for more than one feeder at a time or the shelf will lose
service.
1. Verify that there is a fuse/power failure alarm on the appropriate shelf and
take note of whether the alarm indicates feeder A or B.
NOTE:
In the alarm message, ls indicates low-speed shelf and hs indicates
high-speed shelf. For example, if the alarm is hs fuse/power failure A then
the filter assembly for the A feeder for the high speed shelf needs to be
replaced.
2. Remove the fuse for the affected shelf and feeder.
Reference: DLP-515, Replace Fuse in Power Distribution and Fuse
Panel or User Panel steps 2 through 4.
3. Locate the Interconnection Panel for the affected shelf. (It’s the part of the
shelf above the circuit packs.)
4. Turn the screws on the Interconnection Panel cover so that they are in the ver-
tical (unlocked) position.
5. Use the wire handles that are mounted to the screws to pull the top of the
cover away from the Interconnection Panel, then lift the cover off of the hinges.
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