Section 9 Glossary
100BASE-FX A physical medium defined in the IEEE 802.3 Ethernet
standard for local area networks (LANs) that uses fiber optic
cabling
100BASE-TX A physical medium defined in the IEEE 802.3 Ethernet
standard for local area networks (LANs) that uses twisted-
pair cabling category 5 or higher with RJ-45 connectors
AC Alternating current
ACT 1. Application Configuration tool in PCM600
2. Trip status in IEC 61850
ANSI American National Standards Institute
ARP Address Resolution Protocol
CAT 5 A twisted pair cable type designed for high signal integrity
COMTRADE Common format for transient data exchange for power
systems. Defined by the IEEE Standard.
CPU Central processing unit
CRC Cyclical redundancy check
CSV Comma-separated values
CT Current transformer
DAN Doubly attached node
DC 1. Direct current
2. Disconnector
3. Double command
DFR
Digital fault recorder
DHCP Dynamic Host Configuration Protocol
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.
DNS Domain Name System
DPC Double-point control
DST Daylight-saving time
1MAC456939-IB D Section 9
Glossary
620 series ANSI 139
Operation Manual
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