HP flexnetwork 5510 hi series, Руководство по установке

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3
Table 2 Dust concentration limit in the equipment room
Substance Concentration limit (particles/m³)
Dust ≤ 3 x 10
4
(no visible dust on the tabletop over three days)
NOTE:
Dust diameter ≥ 5 μ m
The equipment room must also meet limits on salts, acids, and sulfides to eliminate corrosion and
premature aging of components, as shown in
Table 3 .
Table 3 Harmful gas limits in the equipment room
Gas Maximum concentration (mg/m
3
)
SO
2
0.2
H
2
S 0.006
NH
3
0.05
Cl
2
0.01
EMI
All electromagnetic interference (EMI) sources, from outside or inside of the switch and application
system, adversely affect the switch in the following ways:
•
A conduction pattern of capacitance coupling.
•
Inductance coupling.
•
Electromagnetic wave radiation.
•
Common impedance (including the grounding system) coupling.
To prevent EMI, use the following guidelines:
•
If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE)
to filter interference from the power grid.
•
Keep the switch far away from radio transmitting stations, radar stations, and high-frequency
devices.
•
Use electromagnetic shielding, for example, shielded interface cables, when necessary.
•
To prevent signal ports from getting damaged by overvoltage or overcurrent caused by lightning
strikes, route interface cables only indoors.
Laser safety
WARNING!
The switch is class 1 laser device. Do not stare into any fiber port when the switch has power. The
laser light emitted from the optical fiber might hurt your eyes.
Installation tools
•
Flat-blade screwdriver
•
Phillips screwdriver