Hardware Installation and Reference Guide
Installing the Switch
61
Note
The device must be installed and operated in the place that can restrict its movement.
3.4
Installing and Removing the Power Supply
3.4.1
Connecting the Power Cord and Ground Cable
Ensure that the power cord and ground cable meet specification requirement.
⚫
For details about the requirements for AC power supply modules, see
Technical Specifications of the switch.
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The switch uses three-wire power cords. It is recommended to use a single-phase three-wire power socket
with a neutral-point connector. The neutral point must be securely grounded in buildings. Ensure that power
supplies in this building are properly grounded.
(1) Open the circuit breaker of the power supply. Insert one end of the power cord delivered with the switch into
the power socket on the rear panel of the switch and the other end into an AC power socket.
(2) Close the circuit breaker of the power supply.
(3) Check whether the power supply indicator on the front panel is on. If yes, it means that the power supply is
properly connected.
Warning
●
Please use the power cord delivered with the switch.
Connecting the Ground Cable of the Switch
A proper grounding system is the basis for stable and reliable running and is indispensable for preventing
lightning strikes and interference.
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The cross-sectional area of the ground cable should be determined according to the possible maximum
current. Cables with good conductor should be used.
⚫
Do not use bare wire.
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To ensure human safety and device security, the switch must be properly grounded. The resistance between
the chassis and ground should be less than 1 ohm.
Simple Grounding Steps
(1) Remove ground screws on the back panel of the switch.
(2) Use the removed ground screws to fix one end of the ground cable to the switch. Use the same method to
connect the other end of the ground cable to the cabinet ground cable or ground bar in the equipment room.
Warning
●
To ensure human safety and device security, the switch must be properly grounded. The resistance
between the switch and ground should be less than 1 ohm.
●
Please check whether the AC socket of the switch is reliably connected to the protection ground of the
building. If not, please use a protection ground wire to connect the protection ground terminal of the AC
socket to the protection ground of the building.
●
The power socket should be installed in an easily operable position near the switch.
