Abstract / scope
Specifies signal quality requirements for serial data transmission. The interface of concern conforms to CCITT Recommendations V.24 (telephone networks) and X.24 (data networks). Annex A is for information only.
ISO/IEC 7480:1991Published
Information technology — Telecommunications and information exchange between systems — Start-stop transmission signal quality at DTE/DCE interfaces
Technologies de l'information — Télécommunications et échange d'information entre systèmes — Qualité des signaux de transmission arythmique aux interfaces ETTD/ETCD