3Com III - A-1 RJ-45 Connector Pin Assignments; AUI Connector Pin Assignments; RJ-45 Connector Pin Assignments

A-2 APPENDIX A: SPECIFICATIONS
RJ-45 Connector Pin Assignments
Figure A-1 shows the RJ-45 connector pin assignments.
Figure A-1 RJ-45 Connector Pin Assignments
AUI Connector Pin Assignments
Table A-1 lists the pin assignments for the AUI (attachment
unit interface) connector.
8
7
6
5
4
12345678
3
2
1
RD– (6 )
RD+ (3)
TD– (2)
TD+ (1)
Table A-1 AUI Connector Pin Assignments
Pin Function Pin Function
1 Collision shield 9 Collision –
2 Collision + 10 Transmit –
3 Transmit + 11 Transmit shield
4 Receive shield 12 Receive –
5 Receive + 13 +12 volts
6 Power return 14 Voltage shield
7 Not used 15 Not used
8 Not used