H3C Technologies H3C S7500E Series Switches - Manual (Page 13)

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ESD prevention
To prevent the electric component from being damaged by the electrostatic discharge (ESD), adhere to
the following requirements:
• Ground the switch correctly. For how to ground your switch, see " Installing the switch ."
• Always wear an ESD wrist strap and make sure it is well grounded when installing pluggable
modules. For how to use an ESD wrist strap, see "
Installing FRUs ."
• Hold a PCB by its edges. Do not touch any electronic components or printed circuit.
• Put cards in an ESD bag.
Laser safety
WARNING!
The laser inside the optical fiber might hurt your eyes.
The H3C S7500E series switches are class 1 laser products.
Examining the installation site
The H3C S7500E series can only be used indoors. To ensure that the switch works correctly and to
prolong its service lifetime, the installation site must meet the following requirements.
Weight support
Evaluate the floor loading as compared to the actual weight of the switch and its accessories (such as
rack, chassis, cards, and power modules, and make sure the floor can support the weight of the rack and
the switch chassis.
IMPORTANT:
When evaluating the floor loading, consider switch capacity expansion (for example, installing a new
card) in the future.
Temperature
CAUTION:
If condensation appears on the switch when you move it to a high-temperature environment, dry the switch
before powering it on to avoid short circuits.
To ensure the normal operation of the switch, ensure that the room temperature meets the requirements
described in
Table 1 .
Table 1 Temperature requirements
Temperature Range
Operating temperature 0°C to 45°C (32°F to 113°F)