Appendix A Specifications
Management Port
A-2
Catalyst 4900 Series Switch Installation Guide
78-18039-02
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-2 lists the 10/100BASE-T port pinouts.
Table A-3 lists the 10/100/1000BASE-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-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
