Connection
11
Kyland Opal5G/Opal10G IM-EN-June 2016
4.3 Grounding
Grounding protects the device from lightning and interference. Therefore, you must ground
the device properly. You need to ground the device before it is powered on and disconnect
the grounding cable after the device is powered off.
There is a grounding screw (see Figure 2) on the top panel of the switch. The screw is for
chassis grounding. After crimping one end of the grounding cable to a cold pressed terminal,
secure the end of the grounding cable to the grounding screw and firmly connect the other
end to ground.
Note
：
Cross-sectional area of the chassis grounding cable>2.5mm
2
; Grounding resistance<5
.
4.4 Power Terminal Block
There is a power terminal block on the top panel of the device. You need to connect the
power wires to the terminal block to provide power for the device. The switch supports
redundant power supply with 4-pin 5.08mm-spacing plug-in terminal block. When one power
input is faulty, the switch can continue operating properly, thereby improving network
reliability
Note
：
Use copper conductors only, temperature rating 85.5
℃
only.
All field wiring intended for connection to the power terminal shall consist of copper
conductors with the insulation locally removed.
Additional intermediate connecting parts,
other than ferrules, shall not be used.
The exposed power cable wires connecting the plug-in terminal block should be 3-5mm
approximately.
4-Pin 5.08mm-Spacing Plug-in Terminal Block
Figure 12 4-Pin 5.08mm-Spacing Plug-in Terminal Block (socket)