Nothing Special   »   [go: up one dir, main page]

JPS53120314A - Exchange system of two wire-four wire hybrid - Google Patents

Exchange system of two wire-four wire hybrid

Info

Publication number
JPS53120314A
JPS53120314A JP3454777A JP3454777A JPS53120314A JP S53120314 A JPS53120314 A JP S53120314A JP 3454777 A JP3454777 A JP 3454777A JP 3454777 A JP3454777 A JP 3454777A JP S53120314 A JPS53120314 A JP S53120314A
Authority
JP
Japan
Prior art keywords
wire
hybrid
exchange system
perform
making
Prior art date
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.)
Pending
Application number
JP3454777A
Other languages
Japanese (ja)
Inventor
Yoshiro Hasegawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3454777A priority Critical patent/JPS53120314A/en
Publication of JPS53120314A publication Critical patent/JPS53120314A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/64—Distributing or queueing
    • H04Q3/66—Traffic distributors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)

Abstract

PURPOSE:To perform the two wire-four wire switching effectively by making a switch frame into the two-wire system making use of the hybrid coil provided to a four-wire incoming or outgoing trunk.
JP3454777A 1977-03-30 1977-03-30 Exchange system of two wire-four wire hybrid Pending JPS53120314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3454777A JPS53120314A (en) 1977-03-30 1977-03-30 Exchange system of two wire-four wire hybrid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3454777A JPS53120314A (en) 1977-03-30 1977-03-30 Exchange system of two wire-four wire hybrid

Publications (1)

Publication Number Publication Date
JPS53120314A true JPS53120314A (en) 1978-10-20

Family

ID=12417325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3454777A Pending JPS53120314A (en) 1977-03-30 1977-03-30 Exchange system of two wire-four wire hybrid

Country Status (1)

Country Link
JP (1) JPS53120314A (en)

Similar Documents

Publication Publication Date Title
GB2004440A (en) Telecommunication switching system
GR64131B (en) Subscriber line/trunk circuit
GB2023969B (en) Communication system conferencing arrangement
JPS5464910A (en) Communication exchange system
IL55799A (en) Communication system call coverage arrangements
IL55838A0 (en) Communication system call transfer arrangement
GB2010483B (en) Transmit/receive switching units
JPS52110506A (en) Communication switching system
JPS5422704A (en) Cordless telephone system
JPS53120314A (en) Exchange system of two wire-four wire hybrid
JPS544504A (en) Combined switching system between two wires and four wires
JPS5430707A (en) Six-wire switching system
JPS5236902A (en) Control system for inter-unit mutual communication
JPS542604A (en) Originating subscriber confirmation system
JPS5413715A (en) Four-wire switching system
GB1557661A (en) Telecommunication switching networks
JPS5590175A (en) Telephone switch for time division telephone exchange
IL55723A0 (en) Switching arrangement for telecommunication systems
IL58341A (en) Switching arrangement for pabx telephone exchange
JPS5430708A (en) Four-wire switching system
JPS5443403A (en) Main wire outgoing control system
JPS5237704A (en) Telephone network switching signalling system
GB2005110B (en) Telephone exchange
IL59222A (en) Switching arrangement for telephone exchanges
JPS5345907A (en) Scanning system of telephone subscriber