
RJ-45 (Altpin On) to DB-9F Terminal Emulator Cable
Cables
PC Terminal Emulator Cables, Altpin RJ-45 8-pin to DB-9
The wiring diagram for an altpin RJ-45 8-pin to DB-9 PC terminal emulator cable is shown in Table 1.
Table 1: EIA-232 altpin RJ-45 8-pin to DB-9 PC terminal emulator cable
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
RTS 7
1 DCD
DTR 4
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 RTS signal of the PC terminal emulator for hardware flow control
(RTS/CTS).
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