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IED
Intelligent electronic device
IEEE 1588 v2
Standard for a Precision Clock Synchronization Protocol
for networked measurement and control systems
IP
Internet protocol
IP address
A set of four numbers between 0 and 255, separated by
periods. Each server connected to the Internet is assigned
a unique IP address that specifies the location for the TCP/
IP protocol.
IRF
1. Internal fault
2. Internal relay fault
IRIG-B
Inter-Range Instrumentation Group's time code format B
LAN
Local area network
LC
Connector type for glass fiber cable
LCD
Liquid crystal display
LED
Light-emitting diode
LHMI
Local human-machine interface
LOG
Loss of grid
LOM
Loss of mains
LV
Low voltage
MAC
Media access control
MCB
Miniature circuit breaker
MM
1. Multimode
2. Multimode optical fiber
MMS
1. Manufacturing message specification
2. Metering management system
MV
Medium voltage
Modbus
A serial communication protocol developed by the
Modicon company in 1979. Originally used for
communication in PLCs and RTU devices.
NC
Normally closed
OSB
Out of step blocking
P2P
peer-to-peer
PC
1. Personal computer
2. Polycarbonate
1MAC059074-MB A
Section 17
Glossary
615 series ANSI
1183
Technical Manual
Содержание Relion 615 series
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