Appendix A
Signal Pinouts
A-5
A.3.1.1
RJ-45 to DB-9 Adapter Crossovers
A.3.1.2
RJ-45 to DB-25 Adapter Crossovers
TABLE A-6
RJ-45 to DB-9 Adapter Crossovers
Serial Port (RJ-45 Connector)
DB-9 Adapter
Pin
Signal Description
Pin
Signal Description
1
RTS
8
CTS
2
DTR
6
DSR
3
TXD
2
RXD
4
Signal Ground
5
Signal Ground
5
Signal Ground
5
Signal Ground
6
RXD
3
TXD
7
DSR
4
DTR
8
CTS
7
RTS
TABLE A-7
RJ-45 to DB-25 Adapter Crossovers
Serial Port (RJ-45 Connector)
DB-25 Adapter
Pin
Signal Description
Pin
Signal Description
1
RTS
5
CTS
2
DTR
6
DSR
3
TXD
3
RXD
4
Signal Ground
7
Signal Ground
5
Signal Ground
7
Signal Ground
6
RXD
2
TXD
7
DSR
20
DTR
8
CTS
4
RTS