This specification describes an in-service code violation monitor for the first and second level in the digital transmission hierarchy. The pseudoternary codes to be monitored are alternate mark inversion (AMI), high density bipolar with a maximum of 3 consecutive zeros (HDB3), B6ZS and B8ZS.
ITU-T O.153 SPANISH-1992 Referenced Document
ITU-T G.821 Error performance of an international digital connection operating at a bit rate below the primary rate and forming part of an Integrated Services Digital Network SERIES G: TRANSMISSION SYSTEMS AND MEDIA DIGITAL SYSTEMS AND NETWORKS Digital networks Quali*， 2024-04-19 Update
ITU-T T.50 International Reference Alphabet (IRA) (Formerly International Alphabet No. 5 or IA5) Information Technology - 7-Bit Coded Character Set for Information Interchange (Study Group VIII) 22 pp*， 1992-09-01 Update
ITU-T V.24 List of Definitions for Interchange Circuits between Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE) Series V: Data Communication over the Telephone Network Interfaces and Voiceband Modems Study Group 16*， 2000-02-01 Update
ITU-T V.28 Electrical Characteristics for Unbalanced Double-Current Interchange Circuits (Study Group XVII)*， 1993-03-01 Update
ITU-T V.35 Data Transmission at 48 Kilobits per Second Using 60-108 kHz Group Band Circuits - Data Communication over the Telephone Network (Study Group XVII; 1 pp; Cancelled)
ITU-T X.21 Interface between Data Terminal Equipment and Data Circuit- Terminating Equipment for Synchronous Operation on Public Data Networks (Study Group VII) 58 pp
ITU-T X.24 LIST OF DEFINITIONS FOR INTERCHANGE CIRCUITS BETWEEN DATA TERMINAL EQUIPMENT (DTE) AND DATA CIRCUIT-TERMINATING EQUIPMENT (DCE) ON PUBLIC DATA NETWORKS
ITU-T O.153 SPANISH-1992 history
1992ITU-T O.153 SPANISH-1992 Basic Parameters for the Measurement of Error Performance at Bit Rates Below the Primary Rate