H3C RA5300, Руководство по установке

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1-2
CAUTION:
•
Insert dust caps into open optical fiber connectors to protect them from contamination and ESD
damage.
•
Insert dust plugs into open fiber ports and transceiver module ports to protect them from
contamination and ESD damage.
Examining the installation site
The router must be used indoors. To ensure correct operation and long service life of your router,
make sure the installation site meets the following requirements.
Temperature and humidity
CAUTION:
The operating temperature range of 50G or 100G transceiver modules is 0°C to 70°C (32°F to
158°F). With a 50G or 100G transceiver module installed in the router, the operating temperature
range of the router is 0°C to 70°C (32°F to 158°F). For information about the models of the 50G or
100G transceiver modules, see
H3C RA5300 Router Interface Module Manual .
To ensure correct operation and long lifespan of the router, make sure the temperature and humidity
in the equipment room meet the requirements as described in
Table1-1 .
•
Lasting high relative humidity tends to cause poor insulation, electricity leakage, mechanical
property change of materials, and corrosion of metal parts.
•
Lasting low relative humidity is likely to cause washer contraction and ESD and cause
problems including loose mounting screws and circuit failure.
•
A high temperature is the most undesirable condition, because it accelerates the aging of
insulation materials and significantly lowers reliability and service life of the router.
Table1-1 Temperature and humidity requirements
Item Operating Storage
Temperature –20°C to +60°C (–4°F to +140°F) –40°C to +70°C (–40°F to +158°F)
Humidity 5% RH to 95% RH, noncondensing 5% RH to 95% RH, noncondensing
Cleanliness
Dust buildup on the chassis might result in electrostatic adsorption, which causes poor contact of
metal components and contact points, especially when indoor relative humidity is low. In the worst
case, electrostatic adsorption can cause communication failure.
Table1-2 Dust concentration limit in the equipment room
Substance Concentration limit (particles/m
3
)
Dust particles
≤ 3 × 10 4
(No visible dust on desk in three days)
NOTE:
Dust particle diameter ≥ 5 µm