Ruijie RG-NBS3100 Series Switches Hardware Installation and Reference Guide Product Installation
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Determine the sectional area of the grounding wire according to the possible maximum current, and use cables of
the good conductor.
Do not use bare wires.
The grounding electric resistance should be less than 1 Ω.
To guarantee the security of the body and the device, the switch must be well-grounded. The grounding resistance
for combined grounding should be less than 1 Ω.
The maintenance personnel must check whether the AC socket powering the switch is well connected to the building
protective earth (PE). If not, the personnel must connect the grounding lug of the AC socket to the PE with a
grounding connector.
The AC socket must be installed near the device and easily used.
When installing the switch, ensure that the grounding is connected first and then disconnected.
The cross-sectional area of the PE conductor must be at least 2.5 mm
2
(12 AWG).
3.5 Connecting External Cables
Precautions
Correctly distinguish single-mode and multimode fibers and ports.
Avoid bends of the small radius at the connector.
Steps
Step 1: Connect one end of the Ethernet cable to the MGMT port of the device, and the other end to the NMS or a control
terminal.
Step 2: Insert the single-mode or multimode fiber into the appropriate port according to the identification on the panel of
the module.
Step 3: Insert the twisted pair with the RJ45 connector into the appropriate port according to the identification on the panel
of the module. Distinguish the crossover cable and straight-through cable.
3.6 Bundling Cables
Precautions
The power cables and other cables must be well bundled.
When you bundle fibers, make sure that the fibers at the connectors have natural bends or bends of the large radius.
Do not bundle fibers and twisted pairs too tightly because 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.
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