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APPENDIX A: RJ-45 Adapter Pinout
Table A-1. RJ-45 Adapter Pinout.
Pin #
Signal Name
Pin #
DB25 to
DB25 to
(at EPS)
(at EPS)*
at adapter
terminal/
modem
printer
8
CTS (in)
1
4
5
7
DSR (in)
2
20
6
6
Receive
3
2
3
5
Rx Return
4
7
7
4
Tx Return
5
7
7
3
Transmit
6
3
2
2
DTR (out)
7
6
20
1
RTS (out)
8
5
4
*This table assumes that you are using a swapped cable, in which pin 1 at one end
goes to pin 8 at the other end. The diagram shows a terminal/printer (non-modem)
example. You can use the inner 6 pins (2-7) with existing RJ-12 connectors, but they
will not provide RTS/CTS flow control.
Summary of Contents for LE3700A-R2
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