H3c-technologies H3C SecPath F5000-A5 Firewall Manuel d'utilisateur télécharger pdf (Page 14)

Cooling

The F5000-A5 firewalls adopt left to right airflow for heat dissipation. Plan the installation site for

adequate ventilation.

• Leave at least 10 cm (3.94 in) of clearance at the inlet and outlet air vents.

• The installation site has a good cooling system.

Figure 1 Airflow through the F5000-A5 chassis

ESD prevention

CAUTION:

• Check the resistance of the ESD wrist strap for safety. The resistance readin

should be in the ran

e of

1 to 10 megohm (Mohm) between human body and the ground.

• The F5000-A5 does not provide any ESD wrist strap. Prepare it yourself.

To prevent electrostatic discharge (ESD), follow these guidelines:

• Make sure the firewall and rack are correctly grounded.

• An anti-static floor is installed and correctly grounded.

• Maintain the humidity and temperature at a compliant range in the equipment room. For more

information, see "Temperature and humidity."

• Always wear an ESD wrist strap and ESD cloth when touching a circuit board, interface module, or

transceiver module.

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H3c-technologies H3C SecPath F5000-A5 Firewall Manuel d'utilisateur Page 14