Số hiệu tiêu chuẩn
ITU-T X.21bis
Tên tiêu chuẩn
Use on public data networks of data terminal equipment (DTE) which is designed for interfacing to synchronous V-series modems
Ngày phát hành
1988-11-00
Tiêu chuẩn tương đương
DIN 66244-4 (1991-07), MOD * DIN 66244-4 (1989-12), MOD * GB/T 11599 (2009), IDT * prTBR 002 (1996-08), IDT
Lịch sử ban hành
ITU-T X.21bis (1988-11)
Từ khóa
Communication equipment * Communication networks * Data network * Data transfer * Interfaces (data processing) * Packet switching networks * Specification (approval) * Telecommunication * Telecommunications * Terminal devices * X.21 * X.25 * Interfaces of electrical connections * Mechanical interfaces * Interfaces