From
RJ-45
Signal Direction Signal To DB-9
3 GND GND Shell
4 TxD
RxD 2
5 RxD
TxD 3
6SG
SG 5
7 CTS
DTR 4
1 DCD
RTS 7
2 RTS
CTS 8
8 DTR
DSR 6
* Arrows indicate which direction the signal is flowing
NOTES:
● Altpin should be turned on when using this cable so that DTR will drive DCD (standard usage).
● If altpin is turned off, the hardware signal on RJ45 pin 1 becomes DSR instead of DCD. This
alternative can be used if DCD is not required, and DSR is needed instead.
● This cable utilizes the DTR signal of the terminal/printer for hardware flow control (RTS/CTS).
● EIA-232 cables cannot exceed 2500pF.
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