Hardware Installation and Reference Guide Product Installation
53
The maintenance personnel shall check whether or not the AC socket powering the switch is well
connected to the building protective earth (PE). If not, the personnel shall connect the grounding
lug of the AC socket with the PE by using a grounding connector.
The AC socket shall be installed near the equipment and shall be easily used.
When installing the switch, make sure the grounding is connected first and disconnected last.
The cross-sectional area of PE conductor shall be at least 2.5 mm
2
(12AWG).
3.7 Connecting the External Port Cables
Precautions
Correctly distinguish single-mode and multi-mode fibers and ports.
Avoid bends of small radius at the connector.
Steps
Step 1: Connect one end of the RJ45 connector to the Ethernet interface of the device board, and the
other end to the NMS or a control terminal.
Step 2: Insert the single-mode or multi-mode fiber into the appropriate interface according to the
identification on the panel of the module.
Step 3: Insert the twisted pair with the RJ45 port into the appropriate interface according to the
identification on the panel of the module. Distinguish the crossover cable and straight-through cable.
3.8 Bundling the Cables
Precautions
The power cables and other cables should be bundled in a pleasing way.
When you bundle fibers, make sure that the fibers at the connectors have natural bends or bends
of large radius.
Do not bundle fibers and twisted pairs too tightly, as this may press hard the fibers and affect their
service time and transmission performance.
Steps
Bind the drooping part of the fibers and twisted pairs of each board, and lead them to both sides of
the chassis for convenience.
On the both sides of the chassis, fasten the fibers and twisted pairs to the cabinet cable
management ring or cabling chute.
For the power cables, you should bundle them closely along the bottom of the chassis, in a straight
line wherever possible.
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