Abbreviations and Acronyms

H

HDLC

High Level Data Link Control

HDX

Half-Duplex Transmission

Hz

Hertz (cycles per second)

I

INC

Incoming Call

INV

Invalid

INVCU

Invalid Command - Command Unknown

INVMS

Invalid Command - Message Syntax Error

INVPS

Invalid Command - Parameter Syntax Error

INVPV

Invalid Command - Parameter Value Error

I/O

Input / Output

IS

International Standard

ISDN

Integrated Services Digital Network

K

KBD

Keyboard

kbps

Kilobits Per Second

L

LAL

Local Analog Loopback

LAPD

Link Access Protocol - D Channel

LAPM

Link Access Protocol for Modems

LB OPTS

Loopback Options

LCD

Liquid Crystal Display OR Line Current Disconnect

LDL

Local Digital Loopback

LDM

Limited-Distance Modem

LED

Light Emitting Diode

LF

Line Feed

LINK

Analog Telephone Line Connection

LL

Local Loopback

LO

Line Occupancy

LRC

Longitudinal Redundancy Check

UTA220/UTA220k

G-5

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Image 171
Northern UTA220/UTA220k manual Hdlc