Esd Prevention; Laser Safety; Examining The Installation Site; Weight Support - H3C SecPath M9000 Series Manual

ESD prevention

To prevent the electric component from being damaged by electrostatic discharge (ESD), follow
these guidelines:
•
Ground the gateway correctly. For how to ground your gateway, see "Grounding the gateway."
•
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."
•
Hold a PCB by its edges. Do not touch any electronic components or printed circuit.
•
Put cards away in antistatic bags for future use.

Laser safety

WARNING!
Do not stare into any fiber port or view directly with non-attenuating optical instruments when the
gateway is operating. The laser light emitted from the fiber port might hurt your eyes.

Examining the installation site

The gateway must be used indoors. To ensure the correct operation and long service life of your
gateway, 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, and accessories. Additionally,
the floor loading plan must also consider system expansion, such as adding more cards. For more
information, see

Temperature

CAUTION:
If condensation appears on the chassis when you move it to a high-temperature environment, dry
the chassis before powering it on to avoid short circuits.
To ensure the correct operation of the gateway, make sure the room temperature meets the
requirements in
Table 1 Temperature requirements
Temperature
Operating temperature
Storage temperature

Humidity

Maintain appropriate humidity in your equipment room, as described in
•
Lasting high relative humidity tends to cause poor insulation, electricity leakage, mechanical
property change of materials, and corrosion of metal parts.
"Appendix A Chassis views and technical
Table 1.
specifications."
Range
0°C to 45°C (32°F to 113°F)
–40°C to +70°C (–40°F to +158°F)
2
Table 2.