7
1.
Calculate the system power consumption
The total power consumption of a WX3024E depends on the number of PDs connected to it. For
more information about the system power consumption, see the chapter “Product overview
(page 3).”
2.
Check that the power supply system on the installation site satisfies the power input of the power
supply modules.
Make sure the power supply system of the installation site is steady and can satisfy the input
requirements of the power supply modules such as rated voltage.
Space
For adequate ventilation and ease of maintenance, adhere to the following requirements:
•
Adequate space is reserved at the air inlet and exhaust vents for heat dissipation. H3C
recommends you to reserve a space greater than 10 cm (3.94 in).
•
The rack or workbench has a good ventilation system.
EMI
All electromagnetic interference (EMI) sources, from outside or inside of the switch and application
system, adversely affect the switch in a conduction pattern of capacitance coupling, inductance coupling,
electromagnetic wave radiation, or common impedance (including the grounding system) coupling. To
prevent EMI, take the following actions:
•
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.
•
Route interface cables only indoors to prevent signal ports from getting damaged by over-voltage
or over-current caused by lightning strikes.
Installation tools
•
Flat-blade screwdriver
•
Phillips screwdriver (P2-150mm)
•
ESD-preventive wrist strap
All these installation tools are user supplied.