Installation Manual
H3C SecPath F100-A Firewall
Chapter 3 Firewall Installation
3-3
(1)
(2)
(3)
ll
(1) Screws (four)
(2) Mounting ear
(3) Guide rail
Figure 3-2
Rack-mount the firewa
3.3 Connecting the PGND Wire
Caution:
Connection of the PGND wire is an important guard against the lightning and
interference. Therefore, the user must first correctly connect the PGND wire before
installing and using the firewall.
The H3C SecPath F100-A firewall provides a grounding screw, which must be well
grounded, so as to safely conduct the inductive and leaky current to the earth ground,
and thereby improve the capability of the whole device to guard against the
electromagnetic interference.
The grounding screw of H3C SecPath F100-A firewall, which is marked with grounding
symbol, is at the right end on the real panel, as shown in Figure 1-2.
Use a PGND wire to connect the grounding screw to the earth ground, and the
grounding resistance should not be greater than 5-ohm. Likewise, if the firewall is
installed in a 19-inch standard rack, this rack is required to be grounded too.
