3com nj225 User Guide
Installing the NJ225
7
• Make sure the distance between the back of the IntelliJack and the inside of
the wall or cubicle opening is at least 25mm to maintain an acceptable bend
radius on the cable.
radius on the cable.
• To ensure proper horizontal cabling functionality, adhere to the following
standards during installation:
n
ANSI/TIA/EIA-568
Commercial Building Telecommunications Cabling Standard
Commercial Building Telecommunications Cabling Standard
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ANSI/TIA/EIA-569
Commercial Building Standard for Telecommunications Pathways and
Spaces
Commercial Building Standard for Telecommunications Pathways and
Spaces
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BRITISH STANDARD INSTITUTE (BSI): BS 4664:1970
The network cabling at your site (from the wiring closet to the wall or cubicle
opening) may already be installed. If it is not, install the cabling following these
general guidelines.
opening) may already be installed. If it is not, install the cabling following these
general guidelines.
Setting up the Power
Supply
Power to the IntelliJack can be supplied one of the following ways:
• Over the network via an integrated switch that supports Power Over Ethernet.
• Over the network via a 3Com multi-port midspan power supply (3CNJPSE24).
• Over the network via a single-port Ethernet power supply.
• Locally via a 3Com local power supply.
NOTE: The NJ225 is designed to be mounted using the provided mounting
plate or many after-market faceplates. However, some after-market faceplates
stand out from the wall and do not provide a secure mounting surface for the
IntelliJack. In such cases, it is recommended to place the 3Com spacer between
the IntelliJack and the after-market face plate.
plate or many after-market faceplates. However, some after-market faceplates
stand out from the wall and do not provide a secure mounting surface for the
IntelliJack. In such cases, it is recommended to place the 3Com spacer between
the IntelliJack and the after-market face plate.
NOTE: It is recommended that a professional cable installer perform these
procedures. Be sure to adhere to local safety and regulatory codes during the
cable installation.
procedures. Be sure to adhere to local safety and regulatory codes during the
cable installation.
NOTE: Power Over Ethernet, also known as in-line power, is a method to
provide power to equipment over an Ethernet cable, allowing a device to
receive both data and power from the same network cable. The NJ225 is ideally
powered by a switch that is IEEE 802.3af-compliant. The NJ225 can also be
powered by some switches that are not 802.3af-compliant. Consult the 3Com
web site for more information.
provide power to equipment over an Ethernet cable, allowing a device to
receive both data and power from the same network cable. The NJ225 is ideally
powered by a switch that is IEEE 802.3af-compliant. The NJ225 can also be
powered by some switches that are not 802.3af-compliant. Consult the 3Com
web site for more information.