Installation Manual
H3C SecPath F1000-E Firewall
Chapter 3 Preparing for Installation
3-5
Separate the protection ground of the firewall from the grounding device or
lightning protection grounding device of the power supply equipment as far as
possible.
Keep the firewall far away from radio stations, radar, and high-frequency devices
working in high current.
Use electromagnetic shielding when necessary.
3.1.6 Lightning Protection
Although many lightning prevention measures have been in the design of the F1000-E,
if the lightning intensity exceeds a certain range, damage to the firewall may still
happen. To protect the firewall from lightning better, you are recommended to do as
follows:
Ensure the PGND cable of the chassis is well grounded.
Ensure the grounding terminal of the AC power socket is well grounded.
Install a lightning arrester at the input end of the power supply to enhance the
lightning protection capability of the power supply.
To enhance the lightning protection capability, install a special lightning arrester at
the input end of outdoor signal lines (for example, ISDN line, telephone line, or
E1/T1 line) to which interface modules of the firewall are connected.
Note:
Refer to Chapter 4 “Installing the Firewall” for the connection of the PGND cable and
the installation of the power lightning arrester and signal lightning arrester.
3.1.7 Workbench Requirements
When installing the firewall on a workbench, make sure that:
The workbench is sturdy enough to support the weight of the firewall and
installation accessories.
The workbench is well grounded.
3.1.8 Cabinet-Mounting Requirements
When installing the firewall in a cabinet,
Install the firewall in an open cabinet if possible. If you install the firewall in a
closed cabinet, make sure that the cabinet is equipped with a good ventilation
system.
Make sure that the cabinet is sturdy enough to support the weight of the firewall
and installation accessories.
