On Sun, 19 Nov 2017, Chris Elmquist via cctalk wrote:
I recently acquired a TI Silent 700 model 787 terminal. This cc 1980 unit is an interesting member of the Silent 700 family as it is capable of 120 chars/sec printing and has an internal 300/1200 baud direct connect modem that does Bell 103, Bell 212A and Vadic modulation in both originate and answer modes. It's a got a DB25 on the back for directly connecting serial but I don't have any documentation on how to choose the internal modem vs the DB25 for comms or any pinouts for this DB25 outside the usual expectations of RS232 on a DB25.
Some models of Silent 700 had a connector (I seem to remember it as maybe being DA-15?, instead of DB-25?) that permitted it to connect to external modem, AND permitted external devices to connect to the Silent 700 internal modem, or a loop back (defaulted to jumpered to that internally) ofconnecting the terminal to its modem.
