[GreenKeys] question about TTY signals and Telephone Signals

[Larry Tighe]

Eugene,

Telephone pairs were made to prevent cross talk.  For example, rotary 
dialing would be very "spiked" and you probably would'nt hear it on another 
cable pair.

My guess, Go for it.

Lar
K2JIA
www.antiquetelephone.com


Hello all.

I recently purchased a house and in it there is fairly extensive telephone 
wiring. Each room has 6 pair and in the basement there are punchdown blocks 
and a multi-line telephone system. I believe it is an analog system as the 
phones that are used use RJ-11 not RJ-45 (although that might not tell the 
whole story). Only 2 pair are used for each phone

My ham shack/workshop is in a spare bedroom on the 2nd floor. My office is 
on the first floor. I was thinking of using the existing wiring to create a 
loop from the shack down to the office. Does anyone know if the proximity of 
60ma current loop signals might cause interference to the telephone signals 
running adjacent to them on the same cable? Please note that I might also 
want to run 60ma polar for a teletype ticker model (401?) if that makes 
matters better or worse.

Please give me your opinions of whether you think this is a bad idea to run 
them together.

thanks
Eugene