IPC Subgroup
H04L 12/02 Details
Introduced: January 1990
Last revised: January 2006
Full Title
Data switching networks > Details
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
8 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H04L 12/04 Switchboards
- H04L 12/06 Answer-back mechanisms or circuits
- H04L 12/08 Allotting numbers to messages; Counting characters, words or messages
- H04L 12/1 Current supply arrangements
- H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
- H04L 12/14 Charging, metering or billing arrangements specially adapted for data communications, e.g. authentication, authorisation and accounting [AAA] framework
- H04L 12/16 Arrangements for providing special services to substations
- H04L 12/22 Arrangements for preventing the taking of data from a data transmission channel without authorisation