D-Link DFE-908X manual

The following table describes different methods of linking hubs (or hub stacks):

HUB	DEVICE	PORT	CABLE TO USE
PORT		TYPE
USED
Normal	Switch or	Non-	Crossover (X)
	Hub	Uplink
		Uplink	Straight-Through ()
	Server (or PC)		Straight-Through ()
Uplink	Switch or	Non-	Straight-Through ()
	Hub	Uplink
		Uplink	Crossover (X)
	Server (or PC)		Crossover (X)

A crossover cable is a straight-through twisted-pair cable in which the wires have been crossed. The figure below shows the pin assignments for an Ethernet or Fast Ethernet crossover cable:

NOTE: The first twisted-pair port (Port 1) is shared with the Uplink port. If you connect a hub to the Uplink port, then do not use Port 1.

22 Making Connections