(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

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(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.

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