🚀 go-pugleaf

We have a noise problem with our RS-232 lines at work. We run pins 1,2, and 3
(with 7 shorted to 1)
for 2 lines in every office. Unfortunately, the 6 wires are run on a single
cable; the 2 lines are not shielded from each other. This still works OK
if someone has 2 terminals in their office or on terminals with multiple
ports. However, folks who use a T-switch to switch between their 2 lines
in their office will reliably send garbage down the unselected line.

Has anyone solved a similar problem? I'm guessing the what will 
is to put a load between pins 1 and 3 on the unselected line. To do this
automatically, we'd use a matrix switch instead of the t-switch:

Computer A ====== Terminal  *   Computer A ==  == Terminal
                            O                \/
                            R                /\
Computer B ====== Resistor  *   Computer B ==  == Resistor

Will this work? Am I in any danger of damaging our computer terminal
boards? Any estimate of an appropriate value for the resistor?
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