Cisco Systems 4900 Series manual Management Port, Pin Signal Description

Appendix A Specifications

Management Port

Management Port

The 10/100BASE-T (Catalyst 4948) or 10/100/1000BASE-T

(Catalyst 4948-10GE) management port use an RJ-45 receptacle with a Link Status LED. Table A-2lists the 10/100BASE-T port pinouts.

Table A-2		10/100BASE-T Port Pinouts
Pin	Signal		Direction	Description
1	RXDP		input	receive data
2	RXDN		input	receive data
3	TXDP		output	transmit data
4	unused		—	—
5	unused		—	—
6	TXDN		output	transmit data
7	unused		—	—
8	unused		—	—

Table A-3lists the 10/100/1000BASE-T port pinouts.

		Table A-3		10/100/1000 BASE-T Port Pinouts
		Pin	Signal		Description
1			TXRX0P		Bidirectional data pair 0
2			TXRX0N		Bidirectional data pair 0
3			TXRX1P		Bidirectional data pair 1
4			TXRX2P		Bidirectional data pair 2
5			TXRX2N		Bidirectional data pair 2
6			TXRX1N		Bidirectional data pair 1
7			TXRX3P		Bidirectional data pair 3
8			TXRX3N		Bidirectional data pair 3
	Catalyst 4900 Series Switch Installation Guide
A-2					78-18039-02