I'm interfacing a device to the RS-232 port on a PC and would
appreciate suggestions regarding the required connections.

I've got a 9-pin female connector on the device and I'm using a
straight-through female-to-male cable from the PC to the device.

So far, I have ground, device Txd and device Rxd on pins 5, 2, and 3
respectively. I can communicate to and from the device with ProComm.
So much for the easy part. :=3D)

My real issue is looping back the handshake lines to most easily
interface to a PC. I'd like to avoid forcing any changes to the PC's
default handshake settings.  For this application, I don't need any
hardware handshaking so I'm planning to jumper the appropriate pins
together at the device.=20

I'm fairly certain that RTS and CTS (pins 7 and 8) need to be
connected. Should I also make a connection between DCD, DTR and DSR
(pins 1, 4, and 6)? (DCD to DTR looks most likely but I'm not at all
sure about that.)

Any suggestions?

Thanks, Bob

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