DIFF Subgroup
H04L 12/16 Arrangements for providing special services to substations
Introduced: January 1990
Full Title
Full titles differ between systems:
IPC:
Data switching networks > Details > Arrangements for providing special services to substations
CPC:
Data switching networks (interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units G06F13/00) > Details > Arrangements for providing special services to substations
Of 2 combined children, 1 exist in both systems.
1 codes exist only in IPC.
IPC defines codes here since 1990.
Child Classifications
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- H04L 12/2 for converting transmission speed from the inherent speed of a substation to the inherent speed of other substations since 1990 IPC only IPC only