H3C Technologies H3C S7500E Series Switches - Manual (Page 157)

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Appendix G Cable management
Label cables before you route or bundle them. For more information about labeling cables, see
"Appendix E Engineering labels for cables."
Cable management guidelines
When you route and bundle up cables, follow these guidelines:
• Bind cables neatly for easy maintenance and expansion.
• The cable management brackets and cable routing slots, inside or outside the rack, are smooth and
have no sharp edges or tips.
• Route different types of cables (for example, power cords and signal cables) separately. If they are
close to one another, cross them over one another. If you route them in parallel, make sure the space
between a power cord bundle and a signal cable bundle is at least 30 mm (1.18 in).
• Use the correct ties to bind the cables. Do not bind cables with joined ties.
• The distances between cable ties must be three to four times the cable diameter.
• Bind and route the cables neatly inside the rack, and make sure the cables are not kinked or bent.
Do not tie cables or bundles in a knot.
Figure 95 Correct and incorrect cable binding
• When you bend cables, bind cables as shown in Figure 96 . To avoid cable core break due to
excessive stress, do not tie up the cables in the bending area. The cable bend radius at connectors
must be at least 5 times the cable diameter, and must be at least twice the cable diameter away
from the connectors.