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Electronic telex machine
The FS-220 was a partly electronic teleprinter machine (telex),
developed by TeKaDe
(TKD: Telefonapparate-, Kabel- und Drahtwerke AG)
in Nürberg (Germany) around 1988 when TeKaDe was operating under the
Philips (PKI) umbrella 1 . The FS-220 was the successor to the FS-200.
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The FS-220 came in two versions: a civil version in a cream case
and a military version in a green case. The latter often had a 'Z'
added to the model number (FS-220Z) to indicated that it was TEMPEST
approved by the BSI
[1].
The image on the right shows a military FS-220Z with its dust cover removed.
The unit has a fully electronic keyboard and a built-in matrix printer
(7 x 9 dots) that prints directly onto the paper roll at the rear.
To the right of the keyboard is a paper-tape reader, whilst the built-in
paper puncher is located to the right of the printer.
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With the transit case, the unit weights about 34 kg and measures about
53 x 26.5 x 53.5 cm. It can be used for sending and receiving telex signals
(RTTY) at 50, 75, 100 and 200 baud in simplex, half-duplex and duplex modes.
It can be used off-line as well as on-line, in which cases it requires a
40mA telex lines (often connected through an ADo8 connector).
The international telegraph alphabet (ITU-2) is supported and
text is printed at 40 characters per second.
The FS-200Z shown here is a German version, with a German keyboard layout (QWERTZ) and additional letters. The special German characters (Ä, Ü and Ö)
are automatically converted to standard ASCII characters (AE, UE and OE).
When typing, the FS-220 has a buffer of 89 characters.
The machine is far less noisy that its electro-mechanical predecessors,
producing less then 60 dBA when printing at 50 baud. In standby, the
unit doesn't produce any sound at all.
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At this time the company was also known as
Philips Kommunikations Industrie AG.
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- FS200 Z
For mobile use.
- FS220 Z
For stationary use.
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The suffix 'Z' to the model number indicates EMC TEMPEST approval
(German: Zulassung).
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- German Army, Fernschreiber FS200Z/FS220Z Teile 1 bis 3
Description, Maintenance and Operation, Part 1 thru 3 (German).
TDv 2515/029-13. Original version September 1988.
August 1991. Re-issued May 1999.
- Jane's Military Communications 1988, Tempest Military Teleprinter
p. 418.
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© Crypto Museum. Created: Saturday 07 April 2012. Last changed: Wednesday, 14 February 2018 - 11:38 CET.
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