3Com NJ220 manual Supply, Using an Integrated Switch with Power Over Ethernet

6CHAPTER 1: INSTALLING THE NJ220 INTELLIJACK

The following diagram displays an overview of the recommended installation, where the IntelliJack is being connected to an Ethernet network cable that is terminated with a female RJ-45 connector. Detailed installation instructions are included in the sections that follow.

Setting up the Power Power to the IntelliJack can be supplied one of the following ways:

Supply

•Over the network via an integrated switch that supports Power Over Ethernet.

•Over the network via a multi-port Ethernet power supply.

•Over the network via a single-port Ethernet power supply.

•Locally via a 3Com local power supply.

Before you begin the installation, determine which type of power supply the

IntelliJack will use.

NOTE: For a list of power supplies that support the IntelliJack, go to

www.3com.com/.

CAUTION: Use only a power supply that is provided or approved by 3Com for use with this IntelliJack. Failure to do so may result in damage to the IntelliJack, or may result in a hazardous situation or personal injury.

Using an Integrated Switch with Power Over Ethernet

To use Power Over Ethernet, you must have a switch on the network that has Power Over Ethernet integrated into it. You must then determine if it is compatible with IEEE 802.3af.

Using a Multi-port Ethernet Power Supply

To use a multi-port Ethernet power supply, you must connect the power supply to your network, as shown in the illustration.