Connecting HP 49g to PC.

[Tracer21]

Try swapping RX and TX lines. RX on the Calculator goes to TX on the 232 Adapter and vice-versa. Ground goes to ground.

Check section 3.1 here: http://www.geocities.ws/hpcables/cable49g.htm

49G can at most use 9600 Baud, so that should be fine. Don't need any other serial lines like RTS / CTS.

Does your 49G have XModem Server installed? Mine didn't until I upgraded the ROM.