ADCP-61-471 • Issue 4 • June 2000 • Preface

MON

Monitor

MPU

Main Processor Unit

MUX

Multiplexer

MXP

DS3 MUX Protect slot

MXW

DS3 MUX Working slot

NE

Near End

NE

Network Element

NEND

Near End

NID

Network Interface Device

NMA

Bell Network Monitoring and Analysis System

NRZ

Non-Return-to-Zero

NTP

Non-Trouble Clearing Procedure (TOP term)

OAM&P

Operation, Administration, Maintenance & Provisioning

ODS2

Optical Digital Signal 2

OOF

Out Of Frame

OOS

Out Of Service

OR

a type of Boolean operator

OSS

Operations Support System

OTGR

Operations Technology Generic Requirements

PC

Personal Computer

PCB

Printed Circuit Board

PIC

Plastic Insulated Cable

PID

Personal Identification

PM

Performance Monitoring

PRM

Performance Report Message

PVC

Permanent Virtual Circuit

PWR

Power

QFLC

Quad Fiber Loop Converter module

QLX

Quad DS1 Loop Extender module

RRing

RAI

Remote Alarm Indication

RCV

Receive

RDI

Remote Defect Indication

REPC

Repeater - Central office (network) side (MPU version 5.1)

REPR

Repeater - Remote (customer) side (MPU version 5.1)

RFI

Remote Failure Indication

RLX

Repeater Loop Extender module

RLXIOR

Repeater Loop Extender Intelligent Office Repeater

RMT

Remote

RRP

Repeater - Remote (customer) side (MPU version 5.2 and 5.3)

RTAU

Remote Test Access Unit

RX

Receive

SEF

Severely Errored Framing

SF

Super Frame

SLM

Signal Label Mismatch

Page xiv

2000, ADC Telecommunications, Inc.