AT&T 2400 - Manual (Page 137)

Abbreviations
Issue 2 December 1995 ABB-3
I
IDI
isolating data interface
IMG
Interface Module Group
INADS
initialization and administration system
I/O
input/output
IRQ
interrupt request
ISDN
integrated services digital network
IVC6
integrated voice CELP card (6 channels)
K
Kbps
kilobits per second
Kbyte
kilobyte (1024 bytes)
kHz
kilohertz
L
LCD
liquid crystal display
LED
light-emitting diode
LENS
logical equipment number
LTN
logical terminal number
LWC
leave word calling
M
MANOOS
manually out of service
Mbyte
megabyte (one million bytes)
MCI
Message Center Interface
MD
Message Desk
MHz
megahertz
MMG
multi-module group
modem
modulator/demodulator
MPDM
modular processor data module
ms
millisecond
MT
maintenance (INTUITY™ software component)
MTBF
mean time between failures
MWI
message-waiting indicator
N
NW
INTUITY AUDIX Digital Networking