Signal Pinouts

This appendix gives the pinouts for the server rear ports and identifies connectors on various server boards. Topics include:

• Gigabit Ethernet Ports

• Network Management Port

• Serial Ports

• Alarm Port

• USB Ports

A.1 Gigabit Ethernet Ports

The server has four autonegotiating 10/100/1000BASE-T Gigabit Ethernet system domain ports. All four Ethernet ports use a standard RJ-45 connector, the transfer rates for which are given in Ethernet Connection Transfer Rates. Gigabit Ethernet Port Pin Numbering shows the pin numbering of the ports. Gigabit Ethernet Port Signals describes the pin signals.

Table A-1  Ethernet Connection Transfer Rates

Connection Type IEEE Terminology Transfer Rate Ethernet 10BASE-T 10 Mbit/sec Fast Ethernet 100BASE-TX 100 Mbits/sec Gigabit Ethernet 1000BASE-T 1000 Mbit/sec

Figure A-1  Gigabit Ethernet Port Pin Numbering

Table A-2  Gigabit Ethernet Port Signals

Pin Signal Description Pin Signal Description 1 Transmit/Receive Data 0 + 5 Transmit/Receive Data 2 – 2 Transmit/Receive Data 0 – 6 Transmit/Receive Data 1 – 3 Transmit/Receive Data 1 + 7 Transmit/Receive Data 3 + 4 Transmit/Receive Data 2 + 8 Transmit/Receive Data 3 –