Silent 700 connector pinout?

[Charles]

Thanks to several suggestions from cc members, I found that
thermal fax paper on rolls is easy to find, for my "new" Texas
Instruments Silent 700 terminal.

However, I am not having as much luck finding a manual on-line. At
least not for a reasonable price. The data connector on the back
is a 15 pin D-sub male, (not 25 pin) and the unit specifically is
a model 745 (with the acoustic couplers).

Does anyone have the connector pinout?

thanks
Charles