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Appendix A. Connections
A.1. Ethernet pin outs
The UPSLink uses the standard Ethernet connector that is shielded connector compliant with
AT&T258 specifications.
Table A-1
shows the pin assignment and wire color.
Figure A-1 Pin layout of the RJ45 connector
Pin
Description
Color
1
Tx+
White with orange
2 Tx-
Orange
3
Rx+
White with green
4 NC
Blue
5
NC
White with blue
6 Rx-
Green
7
NC
White with brown
8 NC
Brown
Table A-1 Pin assignment of the RJ45 connector for Ethernet
A.2. Serial port pin outs
Table A-2
shows the pin assignment of the DB-9 connector of the UPSLink. Each pin has a function
according to the serial communication type configuration.
6 7 8 9
1 2 3 4 5
Figure A-2 Pin layout of the DB-9 connector
Pin
RS232
1 -
2 Rx
3 Tx
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 -
