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

[Jim Haynes]

That is the reader for Dataspeed Type 5.  One of my projects, so I know
something about it.

Dataspeed type 5 used a 400-series Data Set (modem) which was parallel- 
wire input.  The transmit modem uses a very simple circuit, similar to 
that of the TouchTone dial, but with two transistors generating 9 tones. 
Eight tones for the data bits and one for timing.  Maximum speed is 750 
wpm.  Because the transmitter is so simple it is relatively inexpensive
compared with Dataspeed Type 2.  The receiver modem was rather 
expensive, but could either go directly into a computer or into a Type 5 
receiver that punched tape.  Because of these cost considerations the 
system was especially attractive for data collection applications, where 
the computer used an autodialer to call up a bunch of outlying stations 
using the telephone network to collect their data.

The Type 5 sending equipment was made in two forms.  There was a cabinet
form, similar to other Dataspeed equipment, and also a table-mounted
form which is what you have in the picture.  For the table-mounted
form the rest of the apparatus was in a wall box similar to the boxes
used to hold key telephone equipment.  (The prototype had the entire
sender in one desk-top box, but I decided that did not leave enough
room for a variety of options, so went to the wall box packaging.)  The
receivers were all in cabinets similar to other Dataspeed equipment.
The Type 5 receiver used the DRPE punch running well below its intended
maximum speed, so the problems associated with high speed operation
didn't show up until later.  I was told that a lot of senders were
sold, but I don't know if many customers used the receiving punch or if
they went straight into the computer.