H3c-technologies H3C SecPath F5000-S Firewall Manual de usuario descargar pdf (Pagina 16)

Front mounting

bracket (required)

Rubber feet (required) Bail latch (required)

Cable tie (user supplied)

Checklist before installation

Table 5 Checklist before installation

Item Re

uirements

Result

Installation

site

Ventilation

• There is a minimum clearance of 10 cm (3.94 in) around

the inlet and outlet air vents for heat dissipation of the

firewall chassis.

• A ventilation system is available at the installation site.

Temperature

Operating: 0°C to 40°C (32°F to 104°F)

Non operating: –40°C to +70°C (–40°F to +158°F)

Relative humidity

Operating: 10% to 95% (noncondensing)

Non operating: 5% to 95% (noncondensing)

Cleanness

• Dust concentration ≤ 3 × 10

particles/m

• No dust on desk within three days

ESD prevention

• The equipment and rack are well grounded.

• The equipment room is dust-proof.

• The humidity and temperature are at a proper level.

• Wear an ESD-preventive wrist strap and make sure the

wrist strap makes good skin contact and is well

grounded when installing FRUs.

• Put cards away on an ESD-preventive workbench, with

the PCB upward, or put them in ESD-preventive bags for

future use.

• Touch only the edges, instead of electronic components

when observing or moving a removed interface card.

EMI prevention

• Take effective measures to protect the power system from

the power grid system.

• Separate the protection ground of the firewall from the

grounding device or lightning protection grounding

device 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.

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