Homepage
Crypto
Index
Glossary
Enigma
Hagelin
Fialka
Nema
Voice
Hand
OTP
EMU
Mixers
Phones
FILL
Codebooks
Algorithms
USA
USSR
UK
Yugoslavia
Ascom
AT&T
Bosch
Datotek
Gretag
HELL
ITT
Motorola
Mils
OMI
Philips
Racal
Siemens
STK
Tadiran
Telsy
Teltron
Transvertex
TST
Spy radio
Burst encoders
Intercept
Covert
Radio
PC
Telex
People
Agencies
Manufacturers
• • • Donate • • •
Kits
Shop
News
Events
Wanted
Contact
About
Links
   Click for homepage
TST 5500
Modem with built-in encryption

The TST-5500 was a telephone modem with a built-in cipher unit, developed and built by Tele Security Timmann in Tutzing (Germany) during the 1990s. The device is suitable for the encryption and decryption of computer data at speeds between 1200 and 28.800 baud. A simplified version of the unit, without the modem part, was known as TST-5573.

THIS PAGE IS A STUB

This page currently acts as a placeholder for future information about this device. Crypto Museum is still looking for this device in order to expand our collection of TST equipment. If you have such a device available, or if your have additional information, please contact us.
  

TST 5573 and TST 5575
Cipher unit for computer data - wanted item

The TST-5573 was a simplfied version of the TST-5500. It did not contain a modem, so that no approval from the national PTT was required. Instead the unit was inserted between the serial RS-232 line of the computer (COM-port) and the existing modem. The case was nearly identical to that of the TST-5500, but had no LCD display at the front.

The TST-5573 was available in two variants: in a ruggedized military-grade aluminium housing, such as the one shown in the image on the right, and in a plastic enclosure similar to a regular modem (shown in the iamge below).


THIS PAGE IS A STUB

This page currently acts as a placeholder for future information about this device. Crypto Museum is still looking for this device in order to expand our collection of TST equipment. If you have such a device available, or if your have additional information, please contact us.
  

TST 5575
This is the plastic case variant of the TST-7753, which is also known as Option 5573-8 [3]. The same case was later used with the TST-5575, a high-speed version of the TST-5573.   

References
  1. Helmut 'Jim' Meyer, HS0ZHK, My way to Ham - Radio and beyond
    Website QRZ.COM. Personal correspondence. Retrieved July 2013.

  2. TST Timmann, TST-5500 Telefon-Modem mit integrierter Datenverschlusselung
    Sales datasheet, 5 pages (German). 18 April 2007. Retrieved July 2013 from [1]

  3. TST Timmann,
    TST-5573 Datenverschlüsselungsgerät für synchrone und asynchrone Übertragung

    Sales datasheet, 5 pages (German). 18 April 2007. Retrieved July 2013 from [1]
Further information
Any links shown in red are currently unavailable. If you like the information on this website, why not make a donation?
Crypto Museum. Last changed: Sunday, 08 March 2015 - 09:07 CET.
Click for homepage