Ruijie RG-AP810-L, Руководство по установке и справочное руководство по оборудованию

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Hardware Installation and Reference Guide Appendix
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7.2 Cabling Recommendations
During installation, route cable bundles upward or downward along the sides of the rack depending on the actual
situation in the equipment room. All cable connectors should be placed at the bottom of the cabinet rather than
be exposed outside of the cabinet. Power cords should be routed upward or downward beside the cabinet close
to the location of the DC power distribution cabinet, AC power outlet, or lightning protection box.

Required Minimum Cable Bend Radius
○ The minimum bend radius of a power, communication or flat cable should be 5 times the overall diameter
of the cable. If the cable is constantly bent, plugged or unplugged, the bend radius should be 7 times the
overall diameter.
○
The minimum bend radius of a coaxial cable should be 7 times the overall diameter of the cable. If the
cable is constantly bent, plugged or unplugged, the bend radius should be 10 times the overall diameter.
○ The minimum bend radius of a high-speed cable, such as an SFP+ cable should be 5 times the overall
diameter of the cable. If the cable is constantly bent, plugged or unplugged, the bend radius should be 10
times the overall diameter.

Precautions for Cable Bundling
○ Before bundling cables, correctly mark labels and stick the labels to cables where appropriate.
○
Cables should be neatly and properly bundled, as shown in Figure 7-4 .
Figure 7-4 Bundling Cables
○ Route and bundle power, signal, ground cables separately. When the cables are close to each other, cross
them. When power cords run parallel to signal cables, the distance between them must be greater than
30 mm.
○ All cable trays and their accessories shall be smooth and free from sharp edges.
○ Holes in metal, through which cables pass shall have smooth, well-rounded surfaces or be protected with
insulating bushings.
○ Use proper cable ties to bind cables together. Do not tie two or more cable ties to bind cables.
○ Cut off excess cable tie cleanly with no sharp edges after bundling cables, as shown in Figure B-2.