Industry Video Teleconferencing Profile - VTC001
5. Subnetwork-type independent requirements
All of the abbreviations and acronyms used in this part of the Profile are defined either in the referenced base standards (see Section 2), in the standards listed in the annexes, or listed below. Those that are common with the terms in FED-STD-1037B have been included for the convenience of the reader.
AIA Audio Indicate Active
AIM Audio Indicate Mute
ANSI American National Standards Institute
APU Audio Processing Unit
ASCII American Standard Code for Information Interchange
BAS bit rate allocation signal
bit/s bits per second
BNC bayonet Neill-Concelman
BRI Basic Rate Interface
CCA Chair Command Acquire
CCD Chair Command Disconnect
CCK Chair Command Kill
CCR Chair Command Release/Refuse
CD-ROM compact disk - read only memory
CIC Chair-control Indicate Capability
CIF common intermediate format
CIR Chair Indicate Release/Refuse
CIS Chair Indicate Stopped-using
CIT Chair Indicate Token
CODEC coder-decoder
COS Corporation for Open Systems, International
CPU Central Processing Unit
CSU Channel Service Unit
dBm decibel(s) referenced to 1 milliwatt
DCA LSD/HSD Command Acquire Token
DCC LSD/HSD Command Close
DCE Data Circuit-Terminating Equipment
DCR LSD/HSD Command Release/Refuse
DES data encryption standard
DIS LSD/HSD Indicate Stopped Using Token
DIT LSD/HSD Indicate Token
DPU Data Processing Unit
DSU Data Service Unit
DTE Data Terminal Equipment
ECS Encryption Control Signal
EPROM erasable programmable read only memory
FAS Frame Alignment Signal
FCIF full common intermediate format
FEC forward error correction
fps frames per second
H-MLP High Speed - Multilevel Protocol Channel
HSD High speed data
Hz hertz
IIS Information Indicate String
ISDN Integrated Services Digital Network
I/O input/output
IMUX inverse multiplexer
ISO International Organization for Standardization
ITU International Telecommunication Union
ITU-T ITU Telecommunication Sector (formerly CCITT)
kbit/s kilobits per second
kHz kilohertz
LCA Loopback Command, Audio Loop Request
LCD Loopback Command, Digital Loop Request
LCO Loopback Command Off
LCV Loopback Command, Video Loop Request
LSD Low speed data
Mbit/s megabits per second
MCC Multipoint Command Conference
MCN Multipoint Command Negating MCS
MCS Multipoint Command Symmetrical Data-transmission
MCU Multipoint Control Unit
MCV Multipoint Command Visualization-forcing
MIL Multipoint Indication - Loop
MIM Multipoint Indicate Master
MIS Multipoint Indicate Secondary-status
MIV Multipoint Indicate Visualization
MIZ Multipoint Indicate Zero-communication
MLP Multilevel Protocol Channel
MLP Multilayer Protocol
MPI Minimum Picture Interval
ms milliseconds
NTSC National Television System Committee
PCM pulse code modulation
QCIF quarter common intermediate format
RAN Random Number
SB-ADPCM sub-band adaptive differential pulse-code modulation
SBE Single Byte Extension
SCM Selected Communication Mode
TCI Terminal Command Identify
TCP Terminal Command Personal Identifier
TCU Terminal Command Update
TIA Terminal Indicate Assignment
TIC Terminal Indicate Capability
TID Terminal Indication Dropped
TIF Terminal Indicate Floor-request
TII Terminal Indicate Identity
TIL Terminal Indicate List
TIN Terminal Indicate Number
TIP Terminal Indicate Personal Identifier
TIS Terminal Indicate Secondary
TIX Terminal Indicate Additional Channel X
TCS Terminal Command String
VCB Video Command Broadcast
VCF Video Command "Freeze-picture request"
VCR Video Command Reject
VCS Video Command Select
VCU Video Command "fast Update request"
VIA Video Indicate Active
VIN Video Indicate Number
VIS Video Indicate Suspend
VPU Video processing unit
VTC video teleconferencing
VTU video teleconferencing unit