ABB Relion 670 series, Technical Reference Manual

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DFC Data flow control
DFT Discrete Fourier transform
DHCP Dynamic Host Configuration Protocol
DIP-switch Small switch mounted on a printed circuit board
DI Digital input
DLLB Dead line live bus
DNP Distributed Network Protocol as per IEEE Std 1815-2012
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
1MRK505222-UUS C
Section 23
Glossary
1217
Technical reference manual