Section 9
Glossary
AC
Alternating current
ACT
Application configuration tool within PCM600
A/D converter
Analog-to-digital converter
ADBS
Amplitude deadband supervision
AI
Analog input
ANSI
American National Standards Institute
AR
Autoreclosing
ASCT
Auxiliary summation current transformer
ASD
Adaptive signal detection
AWG
American Wire Gauge standard
BI
Binary input
BOS
Binary outputs status
BR
External bistable relay
BS
British Standards
CAN
Controller Area Network. ISO standard (ISO 11898) for serial
communication
CB
Circuit breaker
CCITT
Consultative Committee for International Telegraph and
Telephony. A United Nations-sponsored standards body within
the International Telecommunications Union.
CCVT
Capacitive Coupled Voltage Transformer
Class C
Protection Current Transformer class as per IEEE/ ANSI
CMPPS
Combined megapulses per second
CMT
Communication Management tool in PCM600
CO cycle
Close-open cycle
Codirectional
Way of transmitting G.703 over a balanced line. Involves two
twisted pairs making it possible to transmit information in both
directions
1MRK 506 331-UUS A
Section 9
Glossary
159
Commissioning Manual
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