Installation Manual
H3C SecPath F1800-A Firewall
Chapter 3 Installation
3-4
You should ensure:
z
Keep the workbench stable and the PGND cable is well grounded.
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Leave the at least 10 cm space around the chassis for heat dissipation.
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Do not put heavy objects on the chassis.
3.3 Connecting the PGND
Warning:
The proper connection of the PGND wire is the essential safeguard against:
z
Lightning shocks
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Interference
Therefore, you must first correctly connect the PGND wire when installing and using
the SecPath; otherwise, the SecPath and the peer equipment may be damaged.
The SecPath provides a separate PGND screw. You must properly connect the PGND
to the ground. In this way, you can ensure the faradism and leakage power to be
channeled into the earth ground. As a result, the anti-EMI capability of the entire
SecPath can be improved.
The PGND also provides protection against the high voltage of lightning shocks
caused by external network lines like E1/T1 line and ISDN/PSTN line.
The PGND screw is located at top right rear of the chassis and identified by a
grounding mark “
”, as shown in
Figure 3-4
.
1. Grounding screw
Figure 3-4
PGND grounding screw
