Huawei AP8030DN Installation And Maintenance Manual page 74

Huawei AP8030DN & AP8130DN
Hardware Installation and Maintenance Guide
Cable or Fiber
Fiber
Precautions for Installation
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Requirements for Cable Routing
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Installing Power Adapters
Installing the OT Terminal
Issue 02 (2014-12-05)
NOTE
The letter d indicates the diameter of a cable or fiber.
Hold the terminals of cables instead of pulling the cables when installing or removing the
cable components.
Do not insert a connector forcibly when the connector is blocked. Pull out the connector
by using a dedicated tool. Install the connector again after you check that the pins are
inserted properly.
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, find out the reason and try again. Do not screw it with too
much force, or the screw or adapter may be damaged.
When removing densely aligned cables or fiber connectors, use dedicated pliers such as
cable-pulling pliers and fiber-pulling pliers.
Do not twist, bend, stretch, or extrude fibers during installation.
Cover the fiber connectors that are not in use by using dustproof caps. Remove the dustproof
caps before using the fiber connectors.
To protect cables, remove the burrs in the cable through-holes or install protective rings in
the holes.
To ease the connection and to avoid stress, keep slack at cable joints. After connecting
multiple cables to a connector that has multiple interfaces, keep the cables slack to avoid
stress generation.
Bind or clean cables gently because cable distortion affects signal quality.
Keep cables away from moveable components such as doors.
Sharp objects must not be touched in cable wiring to ensure that cables are not damaged.
To protect power cables, power cables of the active and standby power modules are laid
separately.
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Bending Radius (R)
R ≥ 40 mm (1.57 in.); Bending angle > 90°
5 Appendix
68