Constructional details

Introduced: September 1968

Full Title

Details of selecting apparatus or arrangements > Constructional details

CPC subdivides this area 2x more granularly than IPC with 10 additional codes.

10 codes are CPC-only extensions.

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H04Q 1/021 CPC only CPC only
H04Q 1/023 CPC only CPC only
H04Q 1/025 +1 CPC CPC only CPC only
H04Q 1/028 CPC only CPC only
H04Q 1/03 +1 CPC CPC only CPC only
H04Q 1/035 CPC only CPC only
H04Q 1/04 Frames or mounting racks for selector switches; Accessories therefor, e.g. frame cover IPC+CPC Available in IPC and CPC
H04Q 1/06 Cable ducts or mountings specially adapted for exchange installations +4 CPC IPC+CPC Available in IPC and CPC
H04Q 1/08 Frames or mounting racks for relays; Accessories therefor IPC+CPC Available in IPC and CPC
H04Q 1/09 CPC only CPC only
H04Q 1/10 Exchange station construction IPC+CPC Available in IPC and CPC
H04Q 1/11 +4 CPC CPC only CPC only
H04Q 1/12 Arrangements of multiple bars with or without pivotable frames IPC+CPC Available in IPC and CPC
H04Q 1/13 +3 CPC CPC only CPC only
H04Q 1/14 Distribution frames +9 CPC IPC+CPC Available in IPC and CPC
H04Q 1/15 +1 CPC CPC only CPC only
H04Q 1/16 Wiring arrangements for selector switches or relays in frames IPC+CPC Available in IPC and CPC