TW39 Special Card - Development area

[M1ECY]

Morning everyone.

I am looking at ways of interfacing some of the British Military electronic machines to I-Telex - Take our "T1000 or TGN" teleprinters - the interfaces look to be very close to RS232 in characteristics.

I have a TW39 special board with USB - I was wondering if I could simply add a TTL-RS232 converter where the optocouplers would usually connect and that is all that would be needed - am I missing something more fundamental?

This could be a way to help get more redundant machines back to life, even if they aren't using the more usual interfaces.

Cheers
Sean

[FredSonnenrein]

Hi Sean,

this is exactly the purpose of that "prototype area": To implement rarely used special interfaces. Generally the concept is to "replace" the serial interface by the "custom interface", so to omit the USB chip resp. the RS232 converters. If the intended interface is "close" to RS232, the best way of solution is to use the hardware of the serial board as it is and implement a special software.

Best regards,

Fred