Intel manual Front Panel, RJ-45 100BASE-TX Ports, Pin # MDI-X signal MDI signal Port

C H A P T E R 1 Intel Express 100BASE- TX Stackable Hub

Front Panel

The front panel of the Express hub provides 12 100BASE-T ports, an MDI/MDI-X switch, an LED matrix, a media adapter slot, and an expansion slot.

2	3	4	5	6	7	8	9	10	11	12						Intel Express
Media Adapter
MDI-X/MDI
															100BASE-TX Stackable Hub
1				100 BASE-TX							Pwr	Stat	RPS	Col		Data %	²1	5	10	15	25	³30
										Technology by	1	Media Adapter							Expansion Slot			Stat
										Bay Networks		Port Status						Management		Stat	Mstr	Enbl
											1	2	3	4	5	6	7	8	9	10	11	12
											13	14	15	16	17	18	19	20	21	22	23	24
			Expansion Slot

5895

Front panel of the Express 100BASE-TX stackable hub

RJ-45 100BASE-TX Ports

The front panel of the Express hub provides 12 100BASE-TX ports with fixed RJ-45 connectors for connectivity to 100BASE-T network devices. These standard RJ-45 connectors accept Category 5 unshielded twisted pair (UTP) or 100-ohm shielded twisted pair (STP) cable. The RJ-45 interface consists of an 8-pin connector configured for MDI-X wiring.

This table provides the pinout information for the standard RJ-45 connector configured for MDI-X wiring, and the pinout information for port 1 RJ-45 connector when configured for MDI wiring.

		Pin #	MDI-X signal	MDI signal
				(port 1)
1	8	1	Receive data + (RD+)	TD+
		2	Receive data - (RD-)	TD-
		3	Transmit data + (TD+)	RD+
	3165.1	4	Not assigned	Not assigned
		5	Not assigned	Not assigned
		6	Transmit data - (TD-)	RD-
		7	Not assigned	Not assigned
		8	Not assigned	Not assigned

4