3Com NJ220 User Manual - Page 6

About the IntelliJack, The following diagram shows the front view of the IntelliJack - power adapter

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Page 6 highlights

2 CHAPTER 1: INSTALLING THE NJ220 INTELLIJACK About the IntelliJack • MAC filtering • 802.1x port security • User-configured VLAN IDs for management packets • Port-based "calendar" function The following diagram shows the front view of the IntelliJack: 1 Switched ports with LEDs Allow up to four devices to be connected to the network. A green LED indicates connection status when a device is using a particular port. Port number 1 is also a power-forwarding port; it can be used with any standard networking device as well as to power a VoIP telephone on a network that uses IEEE 802.3af-compatible Power Over Ethernet. An additional LED indicates when the port is forwarding power to a device connected to that port. 2 Slot for adapter plate Can be fitted with an adapter plate, which can be installed with up to two pass-through ports. 3 Adapter plate with installed pass-through port connector Can be used for voice or other networking applications. The port bypasses the functionality of the switch, allowing you to set up a connection to a separate network segment or to connect to an analog or digital PBX telephone. The adapter plates are available from 3Com. However, you must purchase the connectors from the manufacturer. See "Installing the Adapter Plate and Pass-Through Ports" on page 8 for more information.

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2
C
HAPTER
1: I
NSTALLING
THE
NJ220 I
NTELLI
J
ACK
•
MAC filtering
•
802.1x port security
•
User-configured VLAN IDs for management packets
•
Port-based “calendar” function
About the IntelliJack
The following diagram shows the front view of the IntelliJack:
1
Switched ports with LEDs
Allow up to four devices to be connected to the network.
A green LED indicates connection status when a device is
using a particular port.
Port number 1 is also a power-forwarding port; it can be
used with any standard networking device as well as to
power a VoIP telephone on a network that uses IEEE
802.3af-compatible Power Over Ethernet. An additional
LED indicates when the port is forwarding power to a
device connected to that port.
2
Slot for adapter plate
Can be fitted with an adapter plate, which can be installed
with up to two pass-through ports.
3
Adapter plate with
installed pass-through port
connector
Can be used for voice or other networking applications.
The port bypasses the functionality of the switch, allowing
you to set up a connection to a separate network segment
or to connect to an analog or digital PBX telephone.
The adapter plates are available from 3Com. However, you
must purchase the connectors from the manufacturer. See
“Installing the Adapter Plate and Pass-Through Ports” on
page 8 for more information.