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RS-232 Pinouts and Cable Wiring l l Appendix A
23
A50/A51 DCE
RJ-45 Connector DB-25 Female
1 DCD 8 DCD
2 DSR 6 DTR
3 RTS 4 CTS
5 TxD 2 RxD
6 RxD 3 TxD
7 GND 7 GND
8 CTS 5 RTS
9 DTR 20 DSR
Type 2: To connect RS-232 side of A50/A51 to a DTE, e.g.
terminal or PC COM1/2, with 3-pin wiring if don't
care Hardware flow control.
A50/A51 DTE A50/A51 DTE
RJ-45 Connector DB-25 Male RJ-45 Connector DB-9 Male
5 TxD 3 RxD 5 TxD 2 RxD
6 RxD 2 TxD 6 RxD 3 TxD
7 GND 7 GND 7 GND 5 GND
3 RTS 5 CTS 3 RTS 8 CTS
8 CTS 4 RTS 8 CTS 7 RTS
2 DSR 20 DTR 2 DSR 4 DTR
9 DTR 6 DSR 9 DTR 6 DSR
1 DCD 8 DCD 1 DCD 1 DCD