HP A-MSR20, Руководство по установке

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7
Pre-installation checklist
Table 5 Pre-installation checklist
Item Requirements Yes No
Installation
site
Ventilation

There is a minimum clearance of 10 cm (3.9 in) around
the router chassis intake and exhaust vents for heat
dissipation.

The installation site ventilation system is adequate.
Temperature 0°C to 40°C (32°F to 104°F)
Relative humidity 5% to 90% (noncondensing)
Cleanness Dust concentration ≤ 3 × 10 4 particles/m 3
ESD prevention

The equipment and floor are properly grounded.

The equipment room is dust-controlled.

Humidity and temperature are maintained at proper
levels.

Wear an ESD-preventive wrist strap when inspecting or
handling a circuit board.

Place any removed memory module, CF card, or
interface module face-up on an antistatic workbench or
in an antistatic bag.

Touch only the edges, not any electronic components,
when inspecting or handling a memory module, CF
card, or interface module.
EMI prevention

Take measures to protect the power system from the
power grid system.

Keep the protection ground of the router as far away
from the grounding device or lightning protection
grounding device as possible.

Keep the router far away from radio transmitters, radar,
and high-frequency or high-voltage devices.

Use electromagnetic shielding when necessary.
Lightning protection

The grounding cable of the chassis is grounded
properly.

The grounding terminal of the AC power receptacle is
grounded properly.

A port lightning arrester is installed. (Optional)

A power lightning arrester is installed. (Optional)

A signal lightning arrester is installed at the input end
of an external signal cable. (Optional)
Electricity safety

Install a UPS.

In case of emergency during operation, switch off the
external power switch.
Workbench

The workbench is stable.

The workbench is grounded properly.