General Cable Routing Description - Huawei OceanStor N8500 T Series Installation Manual

OceanStor N8500 Clustered NAS Storage System
Installation Guide (for T Series V100R005)
12
This section describes the correct methods for routing cables (including ground cables, power
cables, STP cables, mini SAS cables, and serial cables) and optical fibers.
General Cable Routing Principles
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General Optical Fiber Routing Principles
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Issue 02 (2015-09-22)

General Cable Routing Description

In an equipment room installed with brackets and ESD floors, cables are routed through
the ground interlayer (the space between the concrete floor and the ESD floor) or the cable
tray. Also, cables may be routed through a cable tray that is installed on the top of the
cabinet.
The specifications, routing, cross-section, and location for cable routing should be
predetermined, and the cables should be arranged neatly.
The insulation layer of the conductor should be intact.
Cables must be bent smoothly with a bend radius of larger than 60 mm (2.364 inches).
Easy maintenance and expansion should be considered when cables are routed.
Power cables and ground cables should be separated from signal cables to reduce
electromagnetic interference.
Do not forcibly pull or excessively bend the optical fibers.
The bend radius of optical fibers must be no less than 5 cm (1.97 inches).
Do not stack other cables on the laid optical fibers.
Power cables and ground cables should be separated from signal cables to reduce
interferance. The corrugated pipes should stretch into the cabinet by about 10 cm (3.94
inches).
Cut the corrugated pipe according to the required length during hardware installation. Wrap
the sharp edge of the corrugated pipe with tape to protect the optical fibers.
In an equipment room installed with brackets and ESD floors, optical fibers shielded in the
corrugated pipes are routed through the ground interlayer or the cable tray.
Optical fibers are routed through the cable tray that is installed on the top of the cabinet.
If the distance between the cable tray and the cabinet top is longer than 0.8 m (31.52 inches),
a cable ladder should be used.
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