DR
Disturbance recorder
DRAM
Dynamic random access memory
DRH
Disturbance report handler
DSP
Digital signal processor
DTT
Direct transfer trip scheme
EHV network
Extra high voltage network
EIA
Electronic Industries Association
EMC
Electromagnetic compatibility
EMF
(Electromotive force)
EMI
Electromagnetic interference
EnFP
End fault protection
EPA
Enhanced performance architecture
ESD
Electrostatic discharge
FCB
Flow control bit; Frame count bit
FOX 20
Modular 20 channel telecommunication system for speech,
data and protection signals
FOX 512/515
Access multiplexer
FOX 6Plus
Compact time-division multiplexer for the transmission of
up to seven duplex channels of digital data over optical fibers
G.703
Electrical and functional description for digital lines used
by local telephone companies. Can be transported over
balanced and unbalanced lines
GCM
Communication interface module with carrier of GPS
receiver module
GDE
Graphical display editor within PCM600
GI
General interrogation command
GIS
Gas-insulated switchgear
GOOSE
Generic object-oriented substation event
GPS
Global positioning system
GSAL
Generic security application
GTM
GPS Time Module
HDLC protocol
High-level data link control, protocol based on the HDLC
standard
HFBR connector
type
Plastic fiber connector
HMI
Human-machine interface
1MRK511240-UEN B
Section 10
Glossary
670 series
93
Engineering Manual