I shorted pins 2 and 3 of the serial side of the adaptor and, voila, my keystrokes get echoed (otherwise not). So the adaptor is working. I've also put in an order for a null modem at a shop that sells computing hardware.
Your next problem, once you have determined that the USB/serial adaptor is
working (see other email) and that you have built/procured a null-modem, is "What software is running on the desktop and responding to data coming in from the serial port?". If the desktop is running Linux then you might have a getty process listening on the serial port, so you *might* get a login prompt...
:-) Thanks for all the help, everybody. Seems like I'm getting somewhere now. I just wonder why I never had to bother with these details when I used such an adaptor before. regards, rohit.
