Installation Manual
H3C S7500E Series Ethernet Switches
Chapter 3 Hardware Installation
3-21
(1)
(2)
(3)
(4)
(1) Flat washer
(2) Flat washer
(3) Spring washer
(4) Fastening nut
Figure 3-21
Cable fixing example
z
Fix the terminal of harder power cables to free the terminal and the cable from
stress;
z
No tapping screw can be used to fasten the cabling terminals;
z
The power cables of the same type and in the same direction should be bound
together and kept clean and straight;
Follow the parameters defined in the following table for binding cables with ties.
Table 3-4
Tie-binding parameters
Cable bundle diameter
Space between bundles
10 mm (0.39 in.)
80 mm to 150 mm (3.15 in. to 5.91 in.)
10 mm to 30 mm (0.39 in. to 1.18 in.)
150 mm to 200 mm (5.91 in. to 7.87 in.)
30 mm (1.18 in.)
200 mm to 300 mm (7.87 in. to 11.81 in.)
z
No cable or bundle can tie a knot;
z
The metal parts of crimping cold-pressed terminal blocks (such as air switch)
cannot stretch beyond the blocks.