3Com 2250-SFP, 2226-SFP, 2426-PWR manual 10/100BASE-TX Link/Activity Status LEDs

(4) 10/100BASE-TX Link/Activity Status LEDs

The top row (3CBLSF50) and the first (top) and third rows (3CBLSF26/3CBLSF26PWR) of LEDs, which are colored yellow or green, show the link, activity and speed status of the related ports:

Table 1 10/100BASE-TX Link/Activity Status LEDs

Status	Meaning
Green	The link is operating at 100 Mbps.
Yellow	The link is operating at 10 Mbps.
Flashing	Packets are being received or transmitted on the
Green	port at 100 Mbps.
Flashing	Packets are being received or transmitted on the
Yellow	port at 10 Mbps.
Off	The link has not been established, nothing is
	connected to the port, or there is a problem:

■Check that the attached device is powered on.

■Check that the cable is the correct type, is not faulty, and is inserted correctly.

If these checks do not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty. Contact your supplier for further advice.

Physical Features 13

(5)10/100BASE-TX Duplex Status LEDs (3CBLSF26 and 3CBLSF26PWR Only)

The second and fourth row of LEDs, which are colored yellow, show the duplex status of the related ports:

Table 2 10/100BASE-TX Duplex Status LEDs

Status	Meaning
Yellow	The link is operating in full duplex mode.
Off	The link is operating in half duplex mode.

■The duplex status of the ports on 3CBLSF50 (and 3CBLSF26/3CBLSF26PWR) can also be monitored from the user interface.

(6)Gigabit Combo Port and Duplex Status LEDs

Each Gigabit combo port has two status LEDs which indicate functions dependant upon whether a connection has been made to the fixed 1000BASE-T port, or if an SFP Module has been inserted.