H3C SR8800-F, Installation Manual, Page: 8 / 148

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Always wear an ESD wrist strap and make sure it is correctly grounded when installing FRUs.
For how to use an ESD wrist strap, see "Attaching an ESD wrist strap."
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Hold a PCB by its edges. Do not touch any electronic components or printed circuit.
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Put cards in ESD bags for future use.
Laser safety
WARNING!
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The router is a Class 1 laser product.
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Disconnected optical fibers or transceiver modules might emit invisible laser light. Do not stare
into beams or view directly with optical instruments when the router is operating.
Examining the installation site
The router must be used indoors. To ensure correct operation of the router and to prolong its service
life, the installation site must meet the requirements in this section.
Weight support
Make sure the floor can support the total weight of the rack, chassis, cards, and power supplies, and
all other components. Additionally, the floor loading plan must cover system expansion, such as
adding more cards.
Temperature
CAUTION:
If condensation appears on the router when you move it to a high-temperature environment, dry the
router before powering it on to avoid short circuits.
To ensure the correct operation of the router, make sure the room temperature is in the range of 0°C
to 45°C (32°F to 113°F).
Humidity
Maintain appropriate humidity in your equipment room, as described in Table 1 .
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Lasting high relative humidity can cause poor insulation, electricity leakage, mechanical
property change of materials, and metal corrosion.
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Lasting low relative humidity can cause washer contraction and ESD and cause problems
including loose mounting screws and circuit failure.
Table 1 Humidity requirements
Humidity Range
Operating humidity 10% RH to 95% RH, noncondensing
Storage humidity 5% RH to 95% RH, noncondensing