>> How can I get a 75 Baud, Baudot, 1.5 stop Bits directly
>> on my serial port ? I would like to interface an old
>> teleprinter with my PC.
> YES and NO
> 75/1.5 should be no problem
None at all, as far as I can see.
> Current loop conversion will require a mod to the output circuit
> not too difficult I did this years ago with a serial port
> running an ASR-33. You should be able to find Current Loop
> circuits in older RTTY book.
That assumes that his teleprinter was current loop. Not all of them
were - I've used both current loop and RS232B (yes, B) voltage level
teleprinters in the past.
> Then you need a software mod for ZER0 (not Slashed) to Oh
> (slashed) printing!!
To be accurate, that would be part of the ASCII <=> Baudot code
conversion driver, and said driver will probably be the most difficult
part of the project.
Best wishes from Riley.
+----------------------------------------------------------------------+
| There is something frustrating about the quality and speed of Linux |
| development, ie., the quality is too high and the speed is too high, |
| in other words, I can implement this XXXX feature, but I bet someone |
| else has already done so and is just about to release their patch. |
+----------------------------------------------------------------------+
* ftp://ftp.MemAlpha.cx/pub/rhw/Linux
* http://www.MemAlpha.cx/kernel.versions.html