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CHK
Check
CHNL
Channel
Cmd.
Command
CMND
Command
CMN
Common input
COM
Common input
Comm
Communication
COMP
Compensated, comparison
CONN
Connection
CONT
Continuous, contact
CPU
Central processing unit
Cr.
Counter(s)
CRT, CRNT
Current
CSA
Canadian Standards Association
CT
Control transformer
Ctrl.
Control
CTS
Current transformer supervision
d
Day
D/A
Digital to analog
D-Sub-Plug
Communication interface
DC, dc
Direct current
DEFT
Definite time characteristic (Tripping time does not depend on the height of the
current.)
DFLT
Default
DGNST
Diagnostics
DI
Digital Input
Diagn.
Diagnosis
Diagn Cr
Diagnosis counter(s)
DIFF
Differential
DIN
Deutsche Industrie Norm
DIR, dir
Directional
261
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EMR-3MP0
11 Appendix
11.2 Glossary