digital crime glossary
sarada avadhanam

Glossary
ADPCM - adaptive differential pulse code modulation
AIN - advanced intelligent network
AMPS - advanced mobile phone service
ANSI - American National Standards Institute
ASIC - application-specific integrated circuit
ASTN - Automotive Satellite Television Network
ATM - asynchronous transfer mode
ATM - automated teller machine
BECN - backward explicit congestion notification
BPSK - binary phase-shift keying
BSC - base station controller
BTS - base transceiver station
CAD - computer-aided design
CCITT - Consultative Committee for International Telegraphy and Telephony
CDMA - code division multiple access
CDPD - cellular digital packet data
CEU - Continuing Education Unit
CIR - committed information rate
CMD-IS - circuit switched CDPD mobile data intermediate system
CMIP - common management information protocol
CMIS - customer management information service
CMOS - Complementary Metal Oxide Semiconductor
CS-CDPD - circuit switched cellular digital packet data
CO FRAD - Central Office FRAD
CSM - cell service module
CSU - channel service unit
CU - channel unit
DAMA - demand-assigned multiple access
DBS - Direct Broadcast Satellite
DCE - digital communications equipment
DCLI - data link correction identifier
DIU - digital indoor unit
DLS - data link switc
DSP - digital signal processing
DSU - data service unit
DTE - data terminal equipment
FCC - Federal Communications Commission
FECN - forward explicit congestion notification
FPGA - field programmable gate array
FRAD - frame relay assembler/disassembler
FSM - frame service module
FTP - file transfer protocol
GES - Gemini Earth Station
GMAC - General Motors Acceptance Corporation
GUI - graphic user interface
HDLC - high-level data link control
HES - Hybrid Earth Station
HLR - home location register
HNS - Hughes Network Systems, Inc.
HSS - Hughes Software Systems, India
HVAC - ting, ventilation, and air conditioning
IACET - International Association for Education and Training
IDF - intermediate distribution frame
IDS - Inventory Distribution System
IDU - indoor unit
IETF - Internet Engineering Task Force
IF - intermediate frequency
IFL - interfacility unit
IFU - internal framing unit
IMS - Installation Management system
IN - intelligent network
I/O - input/output
IP - internet protocol
IPX - internet packet exchange
ISBN - Integrated Satellite Business Network`
ISDN - integrated-services digital network
ITU - International Telecommunications Union {replaced CCITT)
LA - location area
LAN - local area network
LD-CELP - low delay code excited linear prediction
LEC - local exchange carrier
LNA - low noise amplifier
LNB - low noise block downconverter
M-ES - mobile-end systems
MBMP - modem bank management protocol
MDBS - mobile database station
MDF - main distribution frame
MD-IS - mobile data-intermediate system
MIB - management information base
MIPS - million instructions per second
MPOA - multiprotocol-over-ATM
MRP - materials requirements planning (system)
MSC - mobile switching center
MSU - multisubscriber unit
MTSO - mobile telephone switching office
NCC - network control center
NEI - network equipment identifier
NHRP - next hop resolution protocol
NFS - network file system
NMS - network management system
NNI - network-to-network interface
NRF - National Retail Federation
NSW - Nippon Systemware Co. Ltd., Japan
O&M - operations and maintenance
ODU - outdoor unit
OCC - operations control center
OLTP - online transaction process
OMC - operations and maintenance center
OSPF - open shortest path first
PABX - private automatic branch exchange
PACS - Personal Access Communications System
PAT - product assurance test
PBC - People's Bank of China
PBX - private branch exchange
PCMCIA - Personal Computer Memory Card Industry Association
PCS - Personal Communications Services
PES - Personal Earth Station`
PM - Program Manager
POS - point-of-sale
PSTN - public switched telephone network
PVC - permanent virtual circuit
QLLC - quality link layer control
QoS - Quality of Service
QPSK - quadrature phase-shift keying
RDBMS - Relational Database Management System
RES - Receive-Only Earth Station
RF - radio frequency

RFC - request for comment
ROM - read-only memory
RP - radio port
RPCU - radio port controller unit
RX - receive
SCADA - supervisory control and data acquisition
SCM - switch control module

SCPC - single channel per carrier
SDLC - synchronous data link control
SENA - Switched Enterprise Network Architecture
SMDS - switched megabit data services
SMT - surface mount technology
SMTP - simple mail transfer protocol
SNA - Systems Network Architecture
SNMP - simple network management protocol
SSU - single subscriber unit
SVC - switched virtual circuit

TCP/IP - transmission control protocol/internet protocol
TDM - time division multiplexing
TDMA - time division multiple access
TES - Telephony Earth Station
TRAI - Telecom Regulatory Authority of India
TWA - two-way alternating
TWS - two-way simultaneous
TX - transmit, transmission
UDP - user datagram protocol
UMOD - 9100 Universal Modem
UNI - user-to-network interface
USICA - US-India Commercial Alliance
VC - virtual circuit
VCI - virtual circuit identifier
VLR - visitor location register
VLSI - very large-scale integration
VPI - virtual path identifier
VSAT - very small aperture terminal
WAN - wide area network
WLL - wireless local loop
XID - exchange identification