Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to JP270376ApriorityCriticalpatent/JPS5286703A/ja
Publication of JPS5286703ApublicationCriticalpatent/JPS5286703A/ja
Publication of JPS5724999B2publicationCriticalpatent/JPS5724999B2/ja
H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
H04Q3/60—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to satellites or concentrators which connect one or more exchange lines with a group of local lines
Landscapes
Physics & Mathematics
(AREA)
Astronomy & Astrophysics
(AREA)
General Physics & Mathematics
(AREA)
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Exchange Systems With Centralized Control
(AREA)
Sub-Exchange Stations And Push- Button Telephones
(AREA)
Interface Circuits In Exchanges
(AREA)
JP270376A1976-01-141976-01-14Subscriber scanning system
GrantedJPS5286703A
(en)