HDLC (High-Level Data Link Control)

A bit-oriented, synchronous data communications proto-

col developed by the International Organization for Standardization (ISO) as a superset of Synchronous Data Link Control (SDLC) and Advanced Data Communications Control Procedures (ADCCP). A version of HDLC is the Link Access Procedure-Balanced (LAPB), which is used in packet-switched networks conforming to the ITU-T X.25 Recommendation. HDLC also was imported into other standards, including ISDN as LAPD and frame relay as LAPF. See also ADCCP, bit-oriented protocol, frame relay, ISDN, ISO, LAPB, LAPD, LAPF, SDLC, synchronous, and X.25.

• ISI (InterSymbol Interference)
• ISI (InterSymbol Interference)
• IS (Information Services)
• ISLAN (Integrated Services Local Area Network)
• ISLAN (Integrated Services Local Area Network)
• ISM (Industrial/Scientific/Medical)
• ISO
• ISOC
• isochronous
• ISOC (Internet Society)
• IsoEnet (IsoEthernet)
• IsoEthernet (Isochronous Ethernet)
• ISO/IEC 11801
• ISO (International Organization for Standardization)
• isotropic
• ISP
• ITA #2 (International Telegraph Alphabet #2)
• IT (Information Technology)
• ITU
• ITU-D (International Telecommunication Union-Development Sector)
• ITU (International Telecommunication Union)
• ITU-R (International Telecommunication Union-Radiocommunication)
• ITU-T
• ITU-T
• ITU-T (International Telecommunication Union-Telecommunication Standardization Sector)