LC
Connector type for glass fiber cable, IEC 61754-20
LCT
Life cycle traceability
LE
Light Edition
LED
Light-emitting diode
LOG
Loss of grid
LV
Low voltage
MAC
Media access control
MM
1. Multimode
2. Multimode optical fiber
MMS
1. Manufacturing message specification
2. Metering management system
MV
Medium voltage
NCC
Network control center
NRP
Negative reactance principle
PC
1. Personal computer
2. Polycarbonate
PCM600
Protection and Control IED Manager
PO
Power output
PRP
Parallel redundancy protocol
PTP
Precision Time Protocol
RAM
Random access memory
RCA
Also known as MTA or base angle. Characteristic angle.
RJ-45
Galvanic connector type
RMS
Root-mean-square (value)
RoHS
Restriction of hazardous substances
Rx
Receive/Received
SAN
Single attached node
SCL
XML-based substation description configuration language defined by IEC
61850
Single-line dia-
gram
Simplified notation for representing a three-phase power system. Instead
of representing each of three phases with a separate line or terminal, only
one conductor is represented.
SLD
Single-line diagram
SMT
Signal Matrix tool in PCM600
SMV
Sampled measured values
SOTF
Switch onto fault
ST
Connector type for glass fiber cable
STP
Shielded twisted-pair
SW
Software
TCP
Transmission Control Protocol
TCP/IP
Transmission Control Protocol/Internet Protocol
TLS
Transport layer security
TP
Disturbance data recorded with or without trip bit
Glossary
1MRS758850 D
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SSC600
Operation Manual