a.
Grounding solution 1: The fiber strength member is isolated from the network
box and grounded outside the network box.
This solution prevents the introduction of sudden heavy currents into the network
box, thereby protecting the device inside the network box against heavy currents.
(A long-distance armored optical cable may introduce sudden heavy currents into
the network box if the outer insulation layer is broken and connects to a heavy-
current power line.) Solution 1 is implemented as follows:
i.
Strip the outer insulation layer and armored tube from the fiber strength
member at the ground point. Then, clean bare optical fibers and use a
protection tube to protect them. (Use outdoor tubes in outdoor scenarios and
common tubes in indoor or corridor scenarios. Use waterproof tape produced
by 3M or COTRAN.)
ii.
Use a piece of sandpaper to polish burrs at the stripped position of the optical
cable. Then, use insulation tape to wrap the stripped optical cable. When
wrapping the waterproof tape, ensure that fiber cores are force-free.
iii. Cut excess fiber strength member for grounding.
OptiXstar P622E
Quick Start
2 Installing the Device
Issue 01 (2019-09-30)
Copyright © Huawei Technologies Co., Ltd.
8
