3Com manual About the NJ240FX

About the NJ240FX 3

About the NJ240FX The following diagram shows the front and rear views of the IntelliJack:

1	RJ-45 switched PAN	Four 10/100 Mbps auto-negotiation ports, which the
	(personal area	IntelliJack configures for 10 Mbps or 100 Mbps connections
	network) ports	automatically.
2	Port LEDs and	Indicate network link status of each of the four RJ-45 PAN
	corresponding port	ports.
	numbers
3	LAN LED	Indicates the link status of the LAN connection (fiber uplink).
		For more information, see “Checking the LEDs.”
4	Power LED	Indicates IntelliJack power status (green). For more
		information, see “Checking the LEDs.”
5	Pass-through port	The pass-through port allows for connection to a separate
	connector	network. The data or voice traffic on this port does not flow
		through the switch.
6	Power-forwarding	Lights when an IEEE 802.3af powered device is plugged into
	LED	Port #1 of the NJ240FX and power is being forwarded to that
		device. For more information, see “Checking the LEDs.”
7	AC power socket	The IntelliJack is powered by an internal power supply.
8	Fiber optic	Connects the NJ240FX switched RJ-45ports to the fiber optics
	transceiver	network.
9	Pass-through port	The pass-through port allows for connection to a separate
	cable	network. The data or voice traffic on this port does not flow
		through the switch.