Serial port settings for a real Teletype

General discussions related to the Altair 8800 Clone

Re: Serial port settings for a real Teletype

Postby AltairClone » July 9th, 2019, 2:29 pm

Ken,

Yes, I still have the adapter boards for the '33 available.

The Altair Clone serial ports are wired as DCE. That means data out from the Clone to the TTY is on pin 3, and data from the TTY to the Clone is on pin 2. Signal ground is pin 7. See page 2 of the Altair Clone manual for more information.

Mike
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Re: Serial port settings for a real Teletype

Postby kwiebe » July 16th, 2019, 6:27 pm

AltairClone wrote:Ken,

Yes, I still have the adapter boards for the '33 available.

The Altair Clone serial ports are wired as DCE. That means data out from the Clone to the TTY is on pin 3, and data from the TTY to the Clone is on pin 2. Signal ground is pin 7. See page 2 of the Altair Clone manual for more information.

Mike

Thanks, Mike.

Sometimes I think I'm in documentation overload...I guess that's preferable to the alternative.

Anyway I appreciate the info and pointers, as always. And thanks for sending out the adapter!
-Ken
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