AT&T AUDIX Networking 585-300-903 User Manual
Page 237

Abbreviations
AB-3
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EPROM
Erasable Programmable Read Only Memory
ES
Enhanced Services
ESS
Electronic Switching System
ETN
Electronic Tandem Network
EUCD
Enhanced Uniform Call Distribution
FAC
Feature Access Code
FP
Feature Processor (Subsystem)
FP-BI
FP Bus Interface (TN716B)
FP-CPU
FP Central Processing Unit (TN523 or TN591)
FP-PE
FP Processor Element (includes BI, CPU, and RAM)
FP-RAM
FP Random Access Memory (TN734)
FSD
Fixed Storage Drive (AUDIX-L)
FSW
Failure Status Word
GND
Ground
GPP
General Purpose Port (SN270B)
HDD
Hard Disk Drive (AUDIX)
HDLC
High-Level Data Link Controller
ID
Identification
IDI
Isolating Data Interface
INADS
Initialization and Administration System
INT
Interface Board 1 to 3 for System 75 SCI
IPC
Intelligent Peripheral Controller (TN507C on AUDIX-L)
ISCN
Information Systems Change Notice
ISDN
Integrated Services Digital Network
ISLU-T
Integrated Services Line Unit — T Interface
K or Kbyte
Kilobyte (1024 bytes)
LADS
Local Area Data Set
LAT
Local Administration Terminal
LDN
Listed Directory Number
LEC
Local Exchange Carrier
LED
Light-Emitting Diode
LMT
Local Maintenance Terminal
LWC
Leave Word Calling