The List Of Abbreviations - LG-Nortel ARIA SOHO Installation Manual

ARIA SOHO Hardware Description and Installation Manual Issue 1
INTRODUCTION Mar, 2007

1.4 The list of abbreviations

AAFU: Auto Attendant Function Unit
AC: Alternating Current
ACD: Automatic Call Distributor
ADPCM: Adaptive Differential Pulse Code Modulation
AWG: American Wire Gauge
CHB308: 3 CO lines and 8 hybrid interface board
CID: Caller ID
CMU50PR: Call Metering (50KHz) and Polarity Reversal Detection Unit
CN: Connector
CO: Central Office
CPU: Central Processing Unit
CSB316: 3 CO lines and 16 SLT interface board
DC: Direct Current
DKTU: Digital Key Telephone Unit
DSP: Digital signal processing
DSS: Direct Station Selection
DTMF: Dual Tone Multi Frequency
EMI: Electromagnetic Interference
ESD: Electrostatic Discharge
ETS: European Telecommunications Standards
FSK: Frequency-shift keying
GND: Ground
IP: Internet Protocol
JTAG: Joint Test Action Group
KSU: Key Service Unit
LAN: Local Area Network
Max.: Maximum
MBU: Mother Board Unit
Min.: Minimum
MJ: Modular Jack
MODU: Modem Unit
MOHU: Music On Hold Unit
PCB: Printed Circuit Board
PCM: Pulse Code Modulation
PFTU: Power Failure Transfer Unit
PSTN: Public Switched Telephone Network
PSU: Power Supply Unit
RX: Receive Signal
SLIB8: Single Line Interface Board with 8ports
SLT: Single Line Telephone
SMS: Short Message Service
TD: Transmitted Data
TX: Transmitting signal
UCD: User Call Distribution
UL: Underwriters Laboratories
VMIU: Voice Mail Interface Unit
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