[GreenKeys] data speed tape reader? is it data phone too?

[Jim Haynes]

First of all, there was a family of DataPhone data sets and auxiliaries
which looked like telephones having a dial and a handset, but were gray
and had pushbuttons above the dial.  I'm gonna leave it to you to look
for pictures of same.  AT&T put out some booklets called Technical
References for the whole family of these.  There was the 103 series
that was interoperable with the 101 series, but were small desktop
things.  The 200-series were higher speed things - 202 up to 1200 baud
as I recall, and 201 up to 2400 baud synchronous.  There was a 300
series that was for up to 56K baud I think, and the 400 series included
things for TouchTone signals and perhaps for a fax modem as well as the
ones used for Type 5 Dataspeed.  Dataspeed was an AT&T word, so Teletype
called it Telespeed if sold for the non-AT&T market.

The transmitter data set for Type 5 was quite small, all contained within
the telephone-like housing, since there was nearly nothing to the circuit
except a pair of transistors and nine sets of resonators.  The receiver
data set was large, in a cabinet maybe 15"x10"x10"  and required what
was called an 804 Data Auxiliary Set, which was really just a telephone
styled like the other modems of the family.  There was also an autodialer
that could be used with these modems, but came in a separate box full
of relays.

I left Teletype in 1966 and I think the Type 5 Dataspeed was just going
into production then.  The transmitter design was essentially finished
earlier, but the receiver with DRPE and a new DRPE driver circuit took
more time.

I don't recall if the Inktronic printer carried the Dataspeed name in
AT&T service.