To Next Page

To Previous Page

To prevent RF interference, avoid the following situations:

• Attaching UTP cable to AC power cables

• Routing UTP cable near antennas, such as a ham radio antenna

• Routing UTP cable near equipment that could exhibit RF interference, such as ARC

welding equipment

• Routing UTP cable near electrical motors that contain coils

• Routing UTP cable near air conditioner units

• Routing UTP cable near electrical transformers

In areas or applications where these situations cannot be avoided, use ber optic

cabling or shielded twisted pair cabling.

Meeting Power Requirements

Observe the following requirements and precautions for powering your hardware.

Requirements for PoE Devices

When connecting PoE devices to a PoE switch, all connections between the PoE device

and the switch must remain within the same building and 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

equipment:

• Place the equipment in an area that accommodates the power consumption and

component heat dissipation specications.

• 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 a

different, independent power source.

If a power source fails, it will affect only the switch 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, plug your system into a surge

suppressor.

For detailed power specications for your equipment, see "Technical Specications."

Requirements for Power Cords

Most ExtremeSwitching switches do not ship with power cords. Visit

www.extremenetworks.com/product/powercords/ for information on selecting and

Meeting Power Requirements Site Preparation

52 ExtremeSwitching 5420 Series Hardware Installation Guide

Extreme Networks ExtremeSwitching 5420 Series Installation Guide

Other manuals for Extreme Networks ExtremeSwitching 5420 Series