Installation Manual
H3C SecPath F100-C Firewall
Chapter 3 Installing the
3-4
Pan-head
screw
Figure 3-3
Wall-mounting the H3C SecPath F100-C
3.3 Connecting PGND Wire
Caution:
Properly connect the PGND wire before connecting other cables and
use the cable as short as possible to protect the H3C SecPath F100-C
from possible lightning, which otherwise may damage the device.
At the AC-input end of the H3C SecPath F100-C firewall, there is
an AC-noise filter. Its center, connected to the chassis, is called
protection ground (PGND). The PGND should be well earthed to direct
the induction or leaking power to the earth ground and to protect the
whole device from electromagnetic interference. The PGND also