Section 5 Glossary
100BASE-FX A physical media defined in the IEEE 802.3 Ethernet
standard for local area networks (LANs) that uses fibre-
optic cabling
ANSI American National Standards Institute
BI/O Binary input/output
BIO Binary input and output
COMTRADE Common format for transient data exchange for power
systems. Defined by the IEEE Standard.
CPU Central processing unit
CT Current transformer
DNP3 A distributed network protocol originally developed by
Westronic. The DNP3 Users Group has the ownership of
the protocol and assumes responsibility for its evolution.
DT Definite time
EMC Electromagnetic compatibility
Ethernet A standard for connecting a family of frame-based
computer networking technologies into a LAN
GOOSE Generic Object Oriented Substation Event
HMI Human-machine interface
HW Hardware
IDMT Inverse definite minimum time
IEC International Electrotechnical Commission
IEC 61850 International standard for substation communication and
modelling
IEC 61850-8-1 A communication protocol based on the IEC 61850
standard series and a standard for substation modelling
IED Intelligent electronic device
IRIG-B Inter-Range Instrumentation Group's time code format B
LAN Local area network
LC Connector type for glass fibre cable
LCD Liquid crystal display
LED Light-emitting diode
1MRS756785 A Section 5
Glossary
REM630 47
Application Manual
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