QSW-6200
Series Switch Hardware Installation and Reference Guide
35
www.qtech.ru
3.6 Grounding the Switch
QSW-6200 has a PGND on the back panel. First connect the PGND to the grounding lug of the rack and then connect the
grounding lug to the grounding bar of the equipment room.
Precautions
The sectional area of the grounding wire should be determined according to the possible maximum current.
Cables of good conductor should be used.
Do not use bare wire.
The grounding electric resistance should be less than
1Ω.
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 1Ω.
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.
