Abkürzung Bedeutung

HA

Home Agent (Sat-Kommunikation)

HA

Hauptanschluss (Weitverkehrsnetze)

HAL

Hardware Abstraction Layer

HAN

Home Area Network (ATM, B-ISDN)

HANFS

Highly Available Network File System (NFS)

HAs

Hauptanschluss

HBA

Host Bus Adapter (Fiber Channel)

HBCI

Home Banking Computer Interface (Online-Dienste)

HBFG

Host Behavior Functional Group (ATM, B-ISDN)

HC

Horizontal Cable --> Horizontalkabel (Verkabelung)

HC

Header Compression

HCA

Host Channel Adapter (Lokale Netze)

HCD

High Speed Copper Drop

HCDM

Hybrid Companding Delta Modulation (Modulation)

HCF

Host Command Facility

HCI

Host Controller Interface (Wireless LAN)

HCMTS

High Capacity Mobile Telephone System

HCS

Header Check Sequence

HCS

Header Checksum

HCS

Hard Clad Silicon (Verkabelung)

HCT

Home Communication Terminal --> Set-Top-Box

HD

Harmonisation Document --> Harmionisierungsdokument (CEN/CENELEC)

HD

Halbduplex

HDB

High Density Bipolar (Codierung)

HDB3

High Density Bipolar Code of Order 3 --> Pseudoternärer Leitungscode (Codierung)

HDF

Host Data Facility

HDH

HDLC Distant Host

HDLC

High Level Data Link Control --> OSI-Schicht-2-Protokoll (Protokolle)

HDMAC

HDTV Multiplexed Analogue Components (Telekommunikation)

HD-ML

Handheld Markup Language (Mobilfunknetze)

HDPE

Niederdruck-Polyäthylen (Verkabelung)

HDR

High Data Rate

HDR

Header --> Anfangskennsatz (Protokolle)

HDSL

High Bit-Rate Digital Subscriber Line (xDSL) (Anschlussnetze)

HDTV

High Definition Television --> Hochauflösendes Fernsehen

HDW

Hebdrehwähler (Weitverkehrsnetze)

HDWDM

High Density Wavelength Division Multiplex

HD

Halbduplex --> Übertragungsart

HDx

Half Duplex --> Halbduplex-Betrieb (DK-Übertragungstechniken)

HE

Header Extension (Protokolle)

HE

Höheneinheit (Verkabelung)

HEC

Header Error Control (ATM)

HEC

Header Error Check

HEL

Header Extension Length

HEMS

High Level Entity Management System (Netzwerkmanagement)

HEO

Highly Elliptical Orbit (Sat-Kommunikation)

HEPNET

High Energy Physics Network

HEX

Hexadezimal (Zahlensysteme)

HF

High Frequency --> Hochfrequenz

HFBC

High Frequency Broadcast Conference

HFC

Hybrid Fiber Coaxial --> Hybrides LwL-Koax-Kabel (Verkabelung)

HFD

Hauptanschluß für Direktruf (Deutsche Telekom)

HFP

Host-to-Front-End Protocol (Protokolle)

HFR

Hybrid Fiber Radio

HFRG

Gesetz über den Betrieb von Hochfrequenzgeräten (Standards, Verordnungen, Gesetze)

HIC

Highest Incomming Channel (Mobilfunknetze)

Hifi

High Fidelity

HILI

Higher Layer Interface (IEEE 802.1)

HILI

Higher Level Interface (Lokale Netze)

HILN

Harmonic and Individual Line plus Noise

HIOC

High Speed I/O-Card

HIPERACCESS

High Performance Radio Access (Anschlussnetze)

HIPERLAN

High Performance Radio Local Area Network (ETSI-Standard ETR 101 031 und ETR 101 683)

HIPERLINK

High Performance Radio Link (Anschlußssnetze)

HIPERMAN

High Performace Radio Metropolitan Network (Anschlussnetze)

HIPPI

High Performance Parallel Interface --> Schnelle parallele Schnittstelle (ANSI X3T9.3/88-023)

HK

Hauptkabel (Verkabelung)

HKIX

Hong-Kong Internet Exchange

Hkz

Hauptanschlusskennzeichen (ISDN)

HL

Header Length

HL

Hotline (Telekommunikation)

HLA

Home Location Area (Mobilfunknetze)

HLC

Higher Layer Capabilities

HLF

High Layer Function --> Funktion der oberen Schichten

HLF

Halide-Free Insulation (Verkabelung)

HLLAPI

High Level Language Application Programming Interface

HLM

Heterogenous LAN Management (Netzwerkmanagement)

HLPI

High Layer Protocol Identifier

HLR

Home Location Register --> Heimatregister, Standortverzeichnis (GSM, Mobilfunknetze)

HMA

Human Machine Adaptation

HMAC

Hashed Message Authentification Code (IT-Sicherheit)

HMI

Hub Management Interface (Netzwerkbetriebsysteme)

HMMP

HyperMedia Management Protocol (Protokolle)

HMON

HyperMedia Object Manager

HMP

Host Monitor Protocol (Protokolle)

HMSD

Higher Mode Signalling Deactivation

HoB

Head of Bus

HOC

Highest Outgoing Channel

HON

Handover Number (Mobilfunknetze)

HOPC

High Order Path Crossconnection

HP

Hewlett-Packard

HP

High Priority

HPAD

Host Packet Assembly and Disassembly

HPC

Handheld PC

HPCA

High Performance Computing Act

HPF

Highest Possible Frequency

HPFS

High Performance Filing System

HP-GL

Hewlett Packard Graphics Language

HPIB

Hewlett Packard Interface Bus --> IEC-Bus

HPLMN

Home Public Land Mobile Network (Mobilfunknetze)

HPN

High Performance Network

HP-PCL

Hewlett Packard Printer Command Language

HPPI

High Performance Parallel Interface

HPPP

High Performance Packet Processor

HPR

High Performance Routing (Internetworking)

HPR-APPN

High Performance Routing - Advanced Peer-to-Peer Network (IBM)

HPSB

High Performance Serial Bus (IEEE 1394)

HPSK

Hybrid Phase Shift Keying --> Modulationsverfahren

HPSN

High Performance Scalable Networking (NW-Konzepte)

HQAM

Hamming Quadrature Amplitude Modulation --> Digitales Modulationsverfahren

HR

Half Rate

HRC

Hybrid Ring Control (FDDI)

HRC

Horizontal Redundancy Check --> Horizontale Blockparitätsprüfung

HRC

Header Redundancy Check (ATM)

HRL

High Return Loss (Verkabelung)

HRTC

Half Rate Traffic Channel

HS

High Speed --> Hochgeschwindigkeit

HSCSD

High Speed Circuit Switched Data (GSM, Mobilfunknetze)

HSD

High Speed Data

HSDPA

High Speed Downlink Packet Access

HS-DPCCH

High Speed Dedicated Physical Control Channel --> HSDPA-Uplink-Steuerkanal (Mobilfunk)

HSDS

High Speed Digital Subscriber

HSLAN

High Speed Local Area Network --> Hochgeschwindigkeits-LAN

HSM

Hierarchical Storage Management

HSLPC

High Speed Line Processing Card

HSM

Hierarchical Storage Management (Speichernetze)

HSP

High Speed Protocol --> Paketorientiertes Datenübertragungsprotokoll (X.25)

HS-PDSCH

High Speed Physical Downlink Shared Channel --> HSDPA-Downlink-Datenkanal (Mobilfunk)

HSPFIC

High Speed Peripheral Fabric Interface Card

HSRP

Hot Standby Router Protocol (Cisco) (Protokolle)

HSSB

High Speed Serial Bus

HSSC

High Speed Shelf Controller

HS-SCCH

High Speed Shared Control Channel --> HSDPA-Downlink-Steuerkanal (Mobilfunk)

HSSDC

High Speed Serial Data Connection (Fiber Channel)

HSSE

High Speed Switching Element (ATM, B-ISDN)

HSSG

Higher Speed Study Group (Ethernet) (Gremien, Organisationen)

HSSI

High Speed Serial Interface --> Bitserielles Schicht 1-Protokoll

HST

High Speed Technology

HSTP

High Speed Transport Protocol (Protokolle)

HSTR

High Speed Token Ring (Token Ring)

HT

Hyper Text (Multimedia)

HT

Horizontal Tabulation --> Horizontal-Tabulator (Steuerzeichen)

HTML

Hypertext Markup Language (Internet)

HTTP

Hypertext Transfer Protocol --> Anwendungsprotokoll im Internet (RFC 2068)

HTTPS

Hypertext Transfer Protocol Secure --> Anwendungsprotokoll im Internet (RFC xxxx)

HÜP

Hausübergabepunkt

HV

Hauptverteiler (Verkabelung)

HVEC

Harmonic Vector Excitation Coding (Codierung)

HVSt

Hauptvermittlungsstelle (Weitverkehrsnetze)

HVt

Hauptverteiler (Anschlussnetze)

HVV

Hausverteil-Verstärker (Anschlussnetze)

HW

Hardware

Hz

Hertz --> Frequenzmaßeinheit