3Com 2226-SFP, 2250-SFP, 2426-PWR manual Rear Panel, Power LED

Table 6 SFP Mode SFP/Duplex Status LEDs

SFP/Duplex	Meaning
Green	The SFP module is inserted, regardless of
	the link status.
Off	The SFP module is not inserted.

The SFP module will only disable the 1000BASE-T interface once there is a valid link on the module.

(7) Power LED

The Power LED shows the power status of the Switch.

Table 7 Power Status LED

Status	Meaning
Green	The unit is powered on and ready for use.
Yellow	Internal power, POST, or loopback test has
	failed. Switch is in fail-safe mode.
Flashing	The Switch is undergoing the power up
	sequence, or a software upgrade is underway.
Off	The unit is not receiving power.

■Check that the power cord is connected correctly.

■If the unit still does not operate, contact your supplier.

(8)Self-adhesive Pads

The unit is supplied with four self-adhesive rubber pads.

Physical Features 15

Do not apply the pads if you intend to rack mount the unit.

If the unit is to be part of a free-standing stack, apply the pads to each marked corner area on the underside of the unit. Place the unit on top of the lower unit, ensuring that the pads locate within the recesses of the lower unit.

Rear Panel

The rear panel of the Switch contains the power supply socket.

(9) Power Socket

The Switch automatically adjusts to the supply voltage. Only use the power cord that is supplied with the unit.