Arrangements providing connection between main exchange and sub-exchange or satellite

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Selecting arrangements > Arrangements providing connection between main exchange and sub-exchange or satellite

CPC:

Selecting arrangements (H04Q5/00 - H04Q11/00 take precedence) > Arrangements providing connection between main exchange and sub-exchange or satellite

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Navigate with arrow keys, Enter to open

H04Q 3/60 for connecting to satellites or concentrators which connect one or more exchange lines with a group of local lines +2 CPC IPC+CPC Available in IPC and CPC
H04Q 3/62 for connecting to private branch exchanges +2 CPC IPC+CPC Available in IPC and CPC