Can you folks verify the correct cable connections between a PC serial
port 9-pin or 25-pin and the J2 accessory connector on the rear of the
Universal M-7000 Decoder.


M-7000 RS-232 PC Serial Port (9-pin)
J-2 Pin

4 TD Transmit Data 3
5 RD Receive Data 2
6 DTR Data Terminal Ready 4
17 Ground 5 Signal/ Logic Ground

6 DSR Data Set Ready

7 RTS Request to Send

8 CTS Clear to Send




NOTE: RS-232 Pin 4 tied to Pin 6
Pin 7 tied to Pin 8







M-7000 RS-232 PC Serial Port (25-pin)
J-2 Pin

4 TD Transmit Data 2
5 RD Receive Data 3
6 DTR Data Terminal Ready 20
17 Ground 7 Signal / Logic Ground

9 DSR Data Set Ready

4 RTS Request to Send

5 CTS Clear to Send



NOTE: RS-232 Pin 6 tied to Pin 20.
Pin 4 tied to Pin 5