Section 10 Glossary - ABB 650 series Engineering Manual

1MRK 511 261-UEN -
Section 10
650 series
Engineering Manual
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
COMTRADE Standard format according to IEC 60255-24
Contra-directional Way of transmitting G.703 over a balanced line. Involves
four twisted pairs, two of which are used for transmitting
data in both directions and two for transmitting clock signals
Section 10
Glossary
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