Step 4
Remove the cables from the LPU and label the cables to mark the corresponding interface
numbers.
Step 5
Pull out the LPU to be replaced from the chassis.
1.
Put on the ESD wrist strap and connect the grounding terminal to the ESD jack on the
rack.
2.
Using the Phillips screwdriver, turn the two captive screws counter-clockwise to loosen
them, as shown in
(1).
3.
Turn the ejector levers on the panel of the LPU outward and upward. When the ejector
levers and the panel form a 45-degree angle, the LPU is removed from the backplane, as
shown in
NOTICE
– Pull out the LPU slowly and smoothly to prevent it from hitting neighboring boards
and affecting running boards.
– Touching parts on the LPU when swapping it may damage the LPU.
4.
Hold the ejector levers on the panel of the LPU and pull out the LPU smoothly from the
chassis along the guide rail of the slot. After the LPU protrudes from the chassis by
roughly 40 cm, support the lower edge of the LPU with one hand and hold the panel of
the LPU with the other hand. Then, pull out the LPU smoothly from the slot, as shown in
5.
Place the removed LPU in the ESD bag.
Figure 3-7
Removing an LPU
HUAWEI USG9500 Series
Hardware Guide
3 Hardware Maintenance
Issue 03 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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