3Com 3 manual Choosing, Correct Cables, Transceiver, Your Switch, Cable Mdix

Choosing the Correct Cables 27

Figure 7 Inserting an SFP Transceiver

Product label

SFP port on the

Switch 4200 28-Port

6Check the LEDs on the front of the Switch to ensure that it is operating correctly. Refer to “LEDs” on page 16 for more information.

Removing an SFP	If you wish to remove a transceiver (it is not necessary to power-down
Transceiver	your Switch):

1Disconnect the cable from the transceiver.

2Move the wire release lever downwards until it is pointing toward you.

3Pull the wire release lever toward you to release the catch mechanism; the transceiver will then easily slide out.

Choosing the	All of the ports on the front of the Switch 4200 Family are Auto-MDIX,
Correct Cables	that is they have a cross-over capability. The port can automatically detect
	whether it needs to operate in MDI or MDIX mode. Therefore you can
	make a connection to a port with a straight-through (MDI) or a cross-over
	cable (MDIX).
	The Auto-MDIX feature only operates when auto-negotiation is enabled.
	If auto-negotiation is disabled, all the Switch ports are configured as
	MDIX (cross-over). If you want to make a connection to another MDIX