Extreme Networks BlackDiamond 8806, Руководство по установке оборудования

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Site Preparation
BlackDiamond 8800 Series Switches Hardware Installation Guide
78
Meeting Power Requirements
This section describes power requirements, including:
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PoE Devices
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Power Supply Requirements
●
AC Power Cord Requirements
●
Uninterruptible Power Supply Requirements
PoE Devices
When connecting power over Ethernet (PoE) devices to a PoE switch, all connections between the PoE
device and the switch must remain within the same building and must use a low-voltage power
distribution system per IEEE 802.3af.
Power Supply Requirements
Follow these recommendations when you plan power supply connections for your Extreme Networks
equipment:
●
Place the equipment in an area that accommodates the power consumption and component heat
dissipation specifications.
●
Be sure that your power supply meets the site DC power or AC power requirements of the network
equipment.
●
When you connect power to installed equipment, do not make this connection through an extension
cord or power strip.
●
If your switch includes more than one power supply, connect each power supply to different,
independent power sources.
If a power source fails, it will affect only the power supply to which it is connected. If all switch
power supplies are connected to a single power source, the entire switch is vulnerable to a power
source failure.
●
In regions that are susceptible to electrical storms, Extreme Networks recommends that you plug
your system into a surge suppressor.
For power specifications of the BlackDiamond power supplies, see Appendix B, “Technical
Specifications.”
WARNING!
The chassis does not have a switch for turning power to the unit on and off. For systems using an AC power supply,
power to the chassis is disconnected by removing the wall plug from the electrical outlet. For systems using a DC
SSI power supply, power to the chassis can be turned off by lifting the handle on the power supply or by de-
energizing the circuit that feeds the power supply, which is usually accomplished by turning off a circuit breaker.