4 Maintain the LIU Subrack
4.2.1 Remove LIU Board
To remove LIU board:
1. Identify the board to be replaced. Refer to Board/Area/Slot/SBL Mapping
(Section 1.3) for details.
2. Unplug the cable connector.
3. Unfasten the top screw with the screwdriver.
4. Unfasten the bottom screw with the screwdriver.
The bottom screw is located under the handle.
5. Remove the board from the shelf using the board handle.
4.2.2 Insert LIU Board
To insert the LIU board:
1. Insert using handle the board into the shelf until you feel resistance.
2. Fasten the top screw with the screwdriver.
3. Fasten the bottom screw with the screwdriver.
The bottom screw is located under the handle.
4. Plug in the cable connector.
In the LIU shelf, each slot unused by a board must be closed by a filler front
panel.
64 / 90 3BK 21281 AAAA PCZZA Ed.13
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