----End
5.1.5 Installing Cable Accessories
5.1.5.1 Precautions for Installing Cable Accessories
Tools
NOTE
The illustrations in this document may differ from actual situations, but the installation methods are the
same. For example, in this document, the adapters of cable connectors have separate interfaces. In the
actual situation, the adapters may have interfaces fixed on equipment.
Use dedicated tools provided or specified by Huawei and follow the installation procedure
described here.
Bending Radius
Unless otherwise specified, bending radius (R) of cables or fibers must meet the requirements
listed in
Table 5-14
Bending radius of cables or fibers
Cable or Fiber
Bending Radius (R)
Ordinary cable
In normal cases, R ≥ 2d. When the cable is
connected with a connector, R ≥ 5d.
Fiber
R ≥ 40 mm (1.57 in.); Bending angle > 90°
NOTE
The letter d indicates the diameter of a cable or fiber.
Precautions for Installation
l
Hold terminals of cables instead of pulling the cables themselves when installing or
removing cable components.
l
Do not insert a connector forcibly when the connector is blocked. Use a dedicated tool to
pull out the connector. Install the connector again after you check that the pins are
inserted properly.
l
Before tightening screws on cable connectors, ensure that the connectors are properly
connected to their adapters. Tighten the screw with appropriate force using a flat-head or
Phillips screwdriver instead of bare hands or an electric screwdriver. If the screw cannot
be screwed into the tapped hole, determine the reason and try again. Do not apply too
much force, or the screw or adapter may be damaged.
l
When removing densely aligned cables or fiber connectors, use dedicated pliers such as
cable-pulling pliers and fiber-pulling pliers.
AP4050DN-E
Hardware Installation and Maintenance Guide
5 Appendix
Issue 05 (2018-02-02)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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