Connection
14
The following table lists the gigabit SFP slots and 10/100/1000Base-T(X) Ethernet ports of the
Combo ports.
Table 7 Combo Port
Combo Port
Gigabit SFP Slot
10/100/1000Base-T(X) Ethernet Port
1
GX1
GE1
2
GX2
GE2
4.5 Grounding
Grounding protects the switch from lightning and interference. Therefore, you must ground the
switch properly. You need to ground the switch before it is powered on and disconnect the
grounding cable after the switch is powered off.
The switch provides a grounding screw on the top panel for chassis grounding. After crimping one
end of the grounding cable to a cold pressed terminal, secure the end to the grounding screw and
connect the other end to the earth firmly.
Figure 18 Grounding
Note:
Cross-sectional area of the chassis grounding cable>2.5mm
2
; grounding resistance<5
