30 Jan
2023
30 Jan
'23
12:50 p.m.
On 2023-01-30 2:12 p.m., Fred Cisin via cctalk wrote:
I don't recall all the details but I seem to recall that the cassette
interface was used to generate the modem tones and would be connected to
an acoustic coupler. I believe the software emulated a TDD/TTY but I
don't recall if it was Baudot or ACSII. It would not have been a stretch
to do it all in software as the rate is only 45 Baud and the tone
generation for the cassette interface was done in software.
Paul.
> The 5150
had a cassette port!
> . . . The 5160 no longer had the cassette port.
On Mon, 30 Jan 2023, Paul Berger via cctalk wrote:
The cassette port on the 5150 could also be used
as a
Telecommunication Device for the Deaf (TDD) many years ago I made up
a ISA bus card with the same function as the cassette port for a
gentleman that wanted to move on from a 5150 but still needed the
cassette port for a TDD device.
Interesting!
Was that stand-alone and compatible with the ordinary TDD/TTY units?
(and coupled to a modem)
Or was that solely for communicating with other 5150s?
Or was that to use the 5150 as a KSR terminal for a TDD/TTY handling
the POT communication?
--
Grumpy Ol' Fred cisin(a)xenosoft.com