2.
Remove the hex nut of a grounding post on the grounding strip.
3.
Attach the ring terminal at the other end of the grounding cable to the grounding strip through the
grounding post, and fasten the ring terminal with the removed hex nut.
Figure 11
Connecting the grounding cable to a grounding strip
1
2
3
4
(1) Hex nut
(2) Ring terminal
(3) Grounding post
(4) Grounding strip
Grounding the switch by using the PE wire of an AC power
cord
If the switch is AC powered and no grounding strip is available at the installation site, you can ground
the switch through the PE wire of the AC power cord, as shown in
. Make sure the following
requirements are met:
•
The AC power supply uses a three-wire cable with a protection wire.
•
The PE wire of the AC power cord is correctly grounded at the power distribution room or AC
transformer side.
•
The PE connector on the switch is correctly connected to the PE wire of the AC power cord.
11
Summary of Contents for FlexFabric 7900 Series
Page 5: ...iii Index 53 ...
