Центральний Науково-Дослідний Інститут Зв'Язку, М.Москва
Центральный научно-исследовательский институт связи, г.Москва
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 filed by Центральний Науково-Дослідний Інститут Зв'Язку, М.Москва, Центральный научно-исследовательский институт связи, г.МоскваfiledCriticalЦентральний Науково-Дослідний Інститут Зв'Язку, М.Москва
Priority to UA4449343ApriorityCriticalpatent/UA5341A1/en
Publication of UA5341A1publicationCriticalpatent/UA5341A1/en
Sub-Exchange Stations And Push- Button Telephones
(AREA)
Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges
(AREA)
Abstract
The digital switching system comprises a tandem switching module, I subscription concentration modules, l•m remote subscription modules, l•m•n telephone apparatus. The tandem switching module comprises a group switching stage, l•k+p end exchange decks, a frequency-change unit, a linear signalizing unit, a common link unit, a linear signalizing unit, a common link unit and a marker.
UA4449343A1988-07-201988-07-20Digital switching system
UA5341A1
(en)
Method for connecting or disconnecting selected stations in a ring communication system, and ring communication system including selectively connectable stations