To make life easier, please, tell me with which of the following assertion you don't concur? For your reference I've added numbers before each of them.

1) PCs rs232 port can (note, it is can not should or must) be used for communication using only 3 wires.

This is opposed to your statement because it refers only to situation where partial or full handshaking is required.

2) By using tiebacks you can disrupt intended functionality of rs232 communication if by hardware/software design this communication requires additional signaling.

This is opposed to your statement because you haven't explain what happens if signals are needed and you fake them.

3) Tiebacks are most common way of wiring rs232 cable, but that doesn't mean that it is the only way to wire it.

This is to answer your questionbecause most common way doesn't mean 'the only way'.

4) Which part of the following table you don't understand or object to (apart from using DB9 nomenclature): http://www.lammertbies.nl/comm/info....html#conc

This is opposed to your argument because if you check the table you'll see where it won't work.

I hope you'll give me some straight answers this time.

Best luck,
CN