Schneider BTX Modul
Schneider Btx-Modul für CPC 464/664/6128. Based on a universal Btx-Decoder from Siemens. The device is connected to expansion port, and additionally connected between computer and monitor.
Unknown if the device includes the actual modem built-in... probably, one needed to rent the BTX modem from Deutsche Bundespost separately.
- Type: PC/HC-Decoder
- Country: Germany
- OEM: Siemens
- Year: 1987
- Connectors: D-BT 03, RGB for Monitor or colorprinter
- Protocol: CEPT
- ID Numbers: P07747, Siemens S30817-K732-A101-1 / A30817-X732-A100-1, Schneider Ident Nr. 36445 or 36486
- See also: http://btxmuseum.de/Hardware/ (German)
BTX (Bildschirmtext, translated as Screentext) has been a german service, allowing to transfer data via telephone line. In the 8bit era, the Deutsche Bundespost (german postal service) still owned the monopoly for telecommunications in germany, so the only (legal) way to transmit electronic data via telephone line has been to use their BTX service.
Note: Schneider also made a BTX module for Schneider Television Sets, although that device had nothing to do with the CPC, its housing was later re-used for the CPC's Schneider RS232 Interface.