[GreenKeys] Teletype ASR33 Connections - help please

[Teletypeparts at aol.com]

Alf,
 
Most 33's are current loop.  If the large green resistor in the UCC-6 has 
wire on its outside connections, its 20 MA.  The connections (on the terminal 
strip where AC power comes in are) for input and output full duplex are:
 
TTY send, 3 and 4                P2     5 and 6
TTY receive, 6 and 7             P2     7 and 8
 
It sounds like you already have a connection or cable on it for computer.  
Dont throw away the cable as you may need it.  The above pins are in parallel 
with molex P2 on the rear of the UCC-6.  
 
Wayne



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