Chapter 1 - Before You Begin

List of Abbreviations

The following is the list of abbreviations used throughout this manual:

Table 1-2: Abbreviations

API

Application Programming Interface

 

 

CSU

Channel Service Unit

 

 

DPR

Dual Port Ram

 

 

ESD

Electro-Static Discharge

 

 

HDLC

High-level Data Link Control

 

 

HSD

High Speed Data

 

 

IP

Internet Protocol

 

 

ISDN

Integrated Services Digital Network

 

 

LAN

Local Area Network

 

 

LED

Light Emitting Diode

 

 

LSD

Low Speed Data

 

 

MCU

Multipoint Control Unit

 

 

MGC+

Multimedia Gateway Control

 

 

MPI

Multi Protocol Interface

 

 

MUX

Multiplexor

 

 

PBX

Private Branch Exchange

 

 

PRI

Primary Rate Interface

 

 

TCP

Transmission Control Protocol

 

 

TDM

Time Division Multiplexing

 

 

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Polycom DOC2238A manual List of Abbreviations