AB-4Abbreviations

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MAAP

Maintenance and Administration Panel

MADU

Multiple Asynchronous Data Unit

Mbyte

Megabyte (−∼ one million bytes)

M Bus

Memory Bus

MCS

Message Center Service

MDM

Modular Data Module

MEM

Memory (also RAM)

MFAT

Multifunction Analog Terminal

MFET

Multifunction Electronic Terminal

Mhz

Megahertz

MI

Maintenance Interface (TN531 or TN511)

MLHG

Multiline Hunt Group

MMC

Material Management Center

MMS

Material Management Services

MNP

Microcom Networking Protocol

MPSI

Multiprotocol Switch Interface

MON

Processor Monitor (TN535)

MPDM

Modular Processor Data Module

ms

Millisecond

MSC

Message Service Center

MSS

Message Service Center

MT

Multi-Tasking Terminal

MTBF

Mean Time Between Failures

MWI

Message-Waiting Indication

NC

Network Controller (TN727) (also NETCON)

NT1

Network Termination 1 Unit

OLS

Off-Line Switcher

PBX

Private Branch Exchange

PC

Power Converter (AUDIX-L), or Personal Computer

PDM

Processor Data Module

PE

Processor Element

PEC

Price Element Code

PI

Processor Interface

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AT&T 585-300-903 manual Mbyte, Bus, Mhz, AB-4Abbreviations