Chapter 10 Hardware Installation Check
3.
The contact surface of the power cable lug should closely fit the cabinet terminal plate
smoothly and tightly. The power leading-in method should be consistent with the wring
method. That is, in the case of upward cabling, the power cable should be led in and
connected at the cabinet top; and in the case of downward cabling, the power cable
should be led in and connected at the cabinet bottom.
4.
Intermediate connector or welding point is not allowed for cable extension.
10.2.3 Checking Intra-cabinet Cabling
Intra-cabinet cable is routed as follows.
1.
Each cable is connected to the right position specified on its label. The cabling is
smooth, without any crossing. The cables are bound neatly with cable ties.
2.
The cabling directions are clear. The power cables, bus cables and signal cables are
arranged separately. The cables in the same direction are tidied and bound together.
Try not to make them cross. The cable ties are spaced evenly.
3.
Both ends of the cables are labeled clearly. The connection places are secure and in
good contact. The cable bending positions are not sharp, so that the cables are not
over stretched at the root and connectors.
4.
The unshielded network cables should be separated from the power cables. The
network cables should not be bound too tight and bent too sharp.
10.2.4 Installing Inter-Cabinet Cables
Inter-cabinet cable is routed as follows.
1.
The cables should be laid between the cabinets orderly and reasonably according to
the engineering requirements.
2.
Both ends of the cables must be labeled clearly, to identify the relation of two ends of
the cable.
3.
Cable connector shall be tighten and kept in good contact.
4.
The cable bends should be in an arc shape so that the cables are not tense at the root
and connectors.
5.
The cable ties are properly flexible and distributed at equal intervals.
6.
All the network connectors should comply with the same standards.
10.2.5 Checking Optical Fibers
Cabinet optical fiber is routed as follows.
1.
Paste direction label at both ends of optical fiber. Label identification includes cabinet
number, layer number, board name, and socket stamp.
2.
Optical fiber from each board shall be bundled using nylon fastener tape, fixed on
cable trough using cable clamp. Use a nylon fastener tape to bind once every 200 mm
for each set of fiber.
10-5
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