About The Nj225 - 3Com IntelliJack NJ225 User Manual

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HAPTER NSTALLING THE

About the NJ225

I J
NTELLI ACK
• MAC filtering
• 802.1x port security
• User-configured VLAN IDs for management packets
• Port-based "calendar" function
The following diagram shows the front, rear and bottom views of the IntelliJack:
1 RJ-45 switched PAN
(personal area
network) ports
2 Port LEDs and
corresponding port
numbers
3 RJ-45 LED
4 Power LED
5 Pass-through port
6 Power-forwarding
LED
7 Local power supply
cable strain relief
8 Power socket
Four 10/100 Mbps auto-negotiation ports, which the NJ225
configures for 10 Mbps or 100 Mbps connections
automatically (green LEDs).
Indicate network status of each of the four RJ-45 PAN ports.
Indicates the status of the LAN connection (white cable, green
LED). For more information, see "Checking the LEDs" on
page 13.
Indicates NJ225 power status (green). For more information,
see "Checking the LEDs" on page 13.
Provides a link to your LAN that passes through the NJ225
IntelliJack. The data or voice traffic is separate from and
unaffected by the NJ225 switch.
Lights when the IntelliJack is connected to—and forwarding
power to—an IEEE 802.3af- compliant device. For more
information, see "Checking the LEDs" on page 13.
Local power supply cable strain relief.
The NJ225 can be powered from a local power supply
(available for purchase from 3Com). This is required if your
network does not support Power Over Ethernet (PoE).