Huawei NE40E Hardware Description page 887

NE40E
Hardware Description
Precautions for the loosened optical module






Issue 01 (2018-05-03)
When installing an optical module, force it into position. If a crack sound is heard or a
slight tremor is felt, it indicates that the latch boss is secured. When the latch boss is not
secured, the connecting finger is unstably connected to the connector on the board, and
the link may become Up. On the condition that the optical module tremors or collides
with another object, however, the optical module will be loosened or the optical signals
will be temporarily cut off.
When inserting the optical module, make sure that the tab is closed. (At this time, the
latch boss locks the optical module.) After the optical module is inserted, try pulling it
out to see if it is installed in position. If the optical module cannot be pulled out, it is
secured.
If you cannot push the optical module into an optical module cage any longer, the
optical module is in good contact with the board connector.
The CFP optical module is in good contact with the board connector. By then, fasten the
captive screws at both ends of the optical module at the same time. If you fasten the
captive screws one by one, the optical module may fail to be securely installed.
When installing a CFP optical module, push the module panel horizontally into the
connector using even force with both thumbs. After the module is inserted, push the
module slightly to ensure that it has reached the stop position.
After the CFP optical module is securely inserted, tighten the two screw rods of the
module alternately. To prevent the module from getting loosened due to vibration or
collision, you are advised to use a screwdriver to tighten the screw rods.
1 Hardware Description
873