Power Supply - H3C S12508-AC Installation Manual

Make sure that the resistance between the chassis and the ground is less than 1 ohm.

Power supply

Perform the following steps to satisfy the power supply requirements of the S12500 Routing Switch Series:
Calculate the system power consumption.
1.
Select power supplies according to the system power consumption and power supply mode.
2.
To ensure normal operation of the switch, make sure the maximum output power of the power
supplies is greater than the system power consumption of the switch (reserve certain power for
redundancy). After determining the system power consumption and power supply mode (AC or
DC power supply), you can select power supplies as needed.
Check that the power source on the installation site satisfies the power input of the power supplies.
3.
Make sure the power source of the installation site is steady and can satisfy the input requirements
of the power supplies and parameters such as rated voltage.
NOTE:
For the power consumption and power module specifications of the switch, see the chapter "Appendix A
Technical specifications."
Space
For moving the switch and servicing the modules, make sure that the width of the aisle in the
•
equipment room is at least 0.8 m (2.62 ft).
To install the switch in a rack, make sure the headroom in the equipment room is no less than 3 m
•
(9.84 ft).
For adequate ventilation and ease of maintenance, do not place the switch close to the wall, and
•
make sure the front and rear clearances are at least 0.8 m (2.62 ft).
Rack-mounting
To mount the switch in a rack, adhere to the following requirements:
Use a four-post 19 inch standard rack.
•
The distance between the left and right rack posts is 465 mm (18.31 in).
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