H3C S7500 Series Installation Manual page 16

Installation Manual
H3C S7500 Series Ethernet Switches
Figure 4-15 Cable binding example I
Keep the cable bend radius at least twice the cable diameter, and at least five
times at a connector.
Run and bind different types of cables (power cables, signal cables, and
grounding cable) separately in a cabinet. If they are very close to each other, lay
them in a cross way. If you lay cables in a parallel way, keep the distance between
power cables and signal cables at least 30 mm (1.2 in).
Keep all binding brackets and cabling troughs smooth, without any sharp edges.
Round metal holes which cables go through or furnish them with an insulating
bush.
Use the proper size cable ties, instead of combined ties, to bind cables. Currently,
the following cable tie sizes are available: 100 × 2.5 mm (3.9 × 0.01 in), 150 × 3.6
mm (5.9 × 0.1 in), 300 × 3.6 mm (11.8 × 0.1 in), 530 × 9 mm (20.9 × 0.4 in), and
580 × 13 mm (22.8 × 0.5 in);
Cut the extra parts of the cable ties neatly, without any sharp points. See Figure
4-16
Figure 4-16 Cable binding example II
Intertw ined Intertw ined
4-15
Chapter 4 Hardware Installation
Bent Bent