1668 Chapter 48
audio high density AHD
audio over IP AoIP
audio/video receivers AVR
automated test equipment ATE
automatic frequency control AFC
automatic gain control AGC
automatic level control ALC
automatic volume control AVC
auxiliary aux
available bit rate ABR
available input power AIP
avalanche photodiodes APD
average avg
average absorption coefficient a
average amplitude Aavg
average power Pavg
backlight compensation BLC
backward-wave oscillator BWO
balanced current amplifier BCA
balanced to unbalanced (Bal-Un) Balun
bandpass filter BPF
bandpass in hertz fBP
bandwidth BW
bar bar
barn b
basic rate interface ISDN BRI
baud Bd
Bayonet Neil-Concelman BNC
beat-frequency oscillator BFO
bel B
binary coded decimal BCD
binary phase shift keying BPSK
binaural impulse response BIR
bipolar junction transistor BJT
bit b
bit error rate BER
bits per second bps
blue minus luminance B-Y
breakdown voltage BV
British Standards Institution BSI
British thermal unit Btu
building automation systems BAS
bulletin board service BBS
Butadiene-acrylonitrile copolymer rubber NBR
calorie (International Table calorie) calIT
calorie (thermochemical calorie) calth
Table 48-9. Recommended Abbreviations
Unit or Term Symbol or
Abbreviation
Canadian Electrical Code CEC
Canadian Standards Association CSA
candela cd
candela per square foot cd/ft^2
candela per square meter cd/m^2
candle cd
capacitance; capacitor C
capacitive reactance XC
carrier sense multiple access/collision detection CSMA/CD
carrier-sense multiple access with collision detec-
tion
CSMA/CD
carrierless amplitude phase modulation CAP
cathode-ray oscilloscope CRO
cathode-ray tube CRT
cd universal device format CD-UDF
centimeter cm
centimeter-gram-second CGS
central office CO
central processing unit CPU
certified technology specialist CTS
charge coupled device CCD
charge transfer device CTD
chlorinated polyethylene CPE
circular mil cmil
citizens band CB
closed circuit television CCTV
coated aluminum polyethylene basic sheath Alpeth
coated aluminum, coated steel CASPIC
coated aluminum, coated steel, polyethylene CACSP
coercive force Hc
Columbia Broadcasting Company CBS
Comité Consultatif International des
Radiocommunications
CCIR
commercial online service COLS
Commission Internationale de l’Eclairage CIE
common mode rejection or common mode rejec-
tion ratio
CMR,
CMRR
Communications Cable and Connectivity Cable
Association
CCCA
compact disc CD
compact disc digital audio CD-DA
compact disc interactive CD-I
compression/decompression algorithm CODEC
computer aided design CAD
conductor flat cable FCFC
consolidation point CP
constant angular velocity CAV
Table 48-9. Recommended Abbreviations
Unit or Term Symbol or
Abbreviation