Glossary, Acronyms, and Abbreviations - IIUSA

USMCEB - United States Military Communications-Electronics Board
USMTF - US message text format
USMTF - United States MTF
USN - United States Navy
USPACOM - United States Pacific Command
USSOCOM - United Stated Special Operations Command
USSOUTHCOM - United States Southern Command
USSPACECOM - United states Space command
UT - universal time
UTC - unit type code
UTC - Coordinated Universal Time
UTM - universal transverse mercator
UTP - unshielded twisted pair
UUCP - Unix-to-Unix Copy
UVS - U variable storage
V - volts
V - per-call key
V p-p - volts peak-to-peak
V&V - verification & validation
V
V.35 - A high-speed modem standard and physical interface
standard (CCITT). V.35 uses a 34-pin, Winchester-type
connector. It provides balanced data and clock leads, and
employs bipolar current for signaling.
V1 - Version 1 (Commercial)
V2 - Version 2 (Ruggedized)
V2DA - Version 2 Data Adapter
V3 - Version 3 (Militarized)
VA - value added (network)
VA - volt-ampere
VAAP - Vulnerability Analysis and Assistance Program (Navy)
VAC - volts alternating current
VAD - value added distributor
VADATS - Veterans Administration data transmission system
VAS - value added services
VAS - vulnerability assessment system
VAX - virtual address extension
VBA - variable balance architecture
VBA - Veterans Benefit Administration
vBNS - very high-speed backbone network service
VBR - variable bit rate
VC - virtual channel (call) (circuit)
VC - voice compressor
VC31 - and VC62 (Voice Compression) Server Modules - These
modules encode and decode full duplex PCM voice circuits into
32 or 24 kbps ADPCM on a per channel basis. Used for
international voice circuits, these modules increase the voice-call
capacity of trunks by compressing and decompressing both Mu-
Law and A-Law companded PCM voice circuits.
VCC - virtual channel connection
VCC - voice communications circuit
VCFAX - (Voice Compression Facsimile) Server Module - This
module provides 4:1, 6.67:1, and 8:1 bandwidth reduction for
voice transmission. It does this by compressing 24 channels of 64
kbps PCM data into an equal number of channels at 16 kbps, 9.6
kbps, or 8 kbps. The VCFAX supports compressed group III Fax
at 9.6K fax on 16K circuits, 9.6K fax on 9.6K circuits, and 7.2K fax
and 8K circuits.
VCI - virtual circuit identifier
VCM - virtual call manager
VCN - voice communications network
VCO - voltage controlled oscillator
VCP - virtual channel processor
VCP - communication server
VCS - virtual circuit switch
VCSEL - Vertical Cavity Surface Emitting Laser
VCU - versatile computer unit
VCXO - Voltage-Controlled Crystal Oscillator
VDC - volts direct current
VDE - vertical doping engineering
VDIN - Voice-Data-Image-Navigation
VDLS - vaults, depots and logistics systems
VDP - video decompression processor
VDR - voice digitization rate
VADER - video analysis, digitization, enhancement and re-
VDS - voice data switch
transmission (DIA)
VDSL - very high data rate DSL
VAN - value-added network
VDT - Video Display Terminal
VAPC - (Vector Adaptive Predictive Coding) - Compresses PCM
samples for transmission at either 8 kbps or 16 kbps. The
VDT - visual display terminal
algorithm uses a block coding process that combines vector
quantization with linear prediction in an adaptive structure. The
vector quantizer uses an optimized code book to code the
VDTC - visual display terminal controller
VDU - Video Display Unit
difference between an input vector and a predicted vector.
VDU - visual display unit
VAR - value-added reseller
VDU - video docking unit
VAR - variable
VDUC - visual display unit controller
Variant - The particular protocol (i.e National ISDN-1 or ETS 300)
running on a specific switch. Not all variants are valid for a
VECP - value engineering change proposal
specific switch. The switch brand and model plus the variant
veh - vehicle
defines the ISDN protocol. See ISDN Protocol.
VERTS - virtual emergency response training system
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