ITU-T X.4 SPANISH-1988 GENERAL STRUCTURE OF SIGNALS OF INTERNATIONAL ALPHABET No. 5 CODE FOR CHARACTER ORIENTED DATA TRANSMISSION OVER PUBLIC DATA NETWORKS
The Recommendation considering the agreement between the International Organization for Standardization (ISO) and the CCITT on the main characteristics of a seven-unit alphabet (International Alphabet No. 5) to be used for data transmission and for telecommunications requirements that cannot be met by the existing five-unit International Telegraph Alphabet No. 2.
ITU-T X.4 SPANISH-1988 Referenced Document
ISO 2047 Information processing; Graphical representations for the control characters of the 7- bit coded character set
ITU-T S.31 Transmission Characteristics for Start-Stop Data Terminal Equipment Using International Alphabet No. 5 - Telegraph Services Terminal Equipment (Study Group IX) 2 pp*， 1989-01-01 Update
ITU-T V.4 GENERAL STRUCTURE OF SIGNALS OF INTERNATIONAL ALPHABET No. 5 CODE FOR CHARACTER ORIENTED DATA TRANSMISSION OVER PUBLIC TELEPHONE NETWORKS
ITU-T X.1 International User Classes of Service in and Categories of Access to Public Data Networks and Integrated Services Digital Networks (ISDNs) Series X: Data Networks and Open System Communications Public Data Networks - Services and Facilities Study Group 7;*， 2000-03-01 Update
ITU-T X.4 SPANISH-1988 history
1988ITU-T X.4 SPANISH-1988 GENERAL STRUCTURE OF SIGNALS OF INTERNATIONAL ALPHABET No. 5 CODE FOR CHARACTER ORIENTED DATA TRANSMISSION OVER PUBLIC DATA NETWORKS