Integrated Services Digital Network (ISDN); circuit-mode 64 kbit/s unrestricted 8 kHz structured bearer service category; service description; english version ETS 300108:1992
Edition 1993-04

Aerospace series - General recommendation for the BIT Architecture in an integrated system; German and English version EN 9721:2021
Edition 2022-09

Integrated Services Digital Network (ISDN) - Audiovisual services - Inband signalling procedures for audiovisual terminals using digital channels up to 2048 kbit/s; English version ETS 300143:1994
Edition 1994-12

Microprocessor system bus I 8-bit and 16-bit data (MULTIBUS I); part 1: functional description with electrical and timing specifications (IEC 60796-1:1990); German version HD 593.1 S1:1992
Edition 1993-10

Attachments to the public switched telephone network (PSTN). Category II attachment for 1200 bits per second half duplex and 1200/75 bits per second asymmetrical duplex modems standardized for use on the pstn (candidate NET 24)
Edition 1993-12-01

Public Switched Telephone Network (PSTN) - Category II specification for 300 bit/s duplex modems standardized for use on the PSTN (Endorsement of the English version ETS 300115:1997 as German standard)
Edition 1999-06

Public Switched Telephone Network (PSTN) - Category II specification for 2400 bits per second duplex modems standardized for use on the PSTN; English version ETS 300117:1996
Edition 1997-08

Terminal Equipment (TE); framework of videotex terminal protocols; English version ETS 300222:1993
Edition 1994-01

Public Switched Telephone Network (PTSN) - Category II specification for 1200 bits per second duplex modems standardized for use on the PSTN; English version ETS 300116:1996
Edition 1997-08