JPS55100794A - Space-division line concentration system of time-division exchange - Google Patents

Space-division line concentration system of time-division exchange

Info

Publication number
JPS55100794A
JPS55100794A JP825779A JP825779A JPS55100794A JP S55100794 A JPS55100794 A JP S55100794A JP 825779 A JP825779 A JP 825779A JP 825779 A JP825779 A JP 825779A JP S55100794 A JPS55100794 A JP S55100794A
Authority
JP
Japan
Prior art keywords
hybrid
secondary side
space
division
route
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.)
Granted
Application number
JP825779A
Other languages
Japanese (ja)
Other versions
JPS5923676B2 (en
Inventor
Nobuyuki Miyahara
Motoo Yoshida
Yutaka Asai
Shunichi Arihara
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP825779A priority Critical patent/JPS5923676B2/en
Publication of JPS55100794A publication Critical patent/JPS55100794A/en
Publication of JPS5923676B2 publication Critical patent/JPS5923676B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To solve deterioration in transmission characteristics by eliminating the need for a repeating coil by interposing a space-division switch of a low-dielectric- strength semiconductor switch between a hybrid and modem. CONSTITUTION:Space-division switch S2 is interposed between hybrid HYB and modem circut CODEC. Sound information from subscriber SUB is inputted to hybrid HYB, where two-wire/four-wire conversion is done. With switches S0-S3, and S0'-S3' all ON, the sound is transferred via the secondary-side route of the secondary side, of the hybrid, S0, S1, COD, earth, balancing network BON, S1', S0, and the secondary side of the hybrid. Then, it also flows via the route of the secondary side of the hybrid. S2, S3, and secondary side of the hybrid. When the conditions of hybrid HYB are satisfied, no current flows through the balancing network and the sound is all consumed by a modulation circuit and terminating resistance in a demodulation circuit. A signal from demodulation circuit DEC is also supplied to a subscriber via the route of DEC output, S3', S2', the secondary side of the hybrid, S2, S3, BON, and DEC.
JP825779A 1979-01-29 1979-01-29 Space division concentration method of time division switch Expired JPS5923676B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP825779A JPS5923676B2 (en) 1979-01-29 1979-01-29 Space division concentration method of time division switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP825779A JPS5923676B2 (en) 1979-01-29 1979-01-29 Space division concentration method of time division switch

Publications (2)

Publication Number Publication Date
JPS55100794A true JPS55100794A (en) 1980-07-31
JPS5923676B2 JPS5923676B2 (en) 1984-06-04

Family

ID=11688084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP825779A Expired JPS5923676B2 (en) 1979-01-29 1979-01-29 Space division concentration method of time division switch

Country Status (1)

Country Link
JP (1) JPS5923676B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01216698A (en) * 1988-02-24 1989-08-30 Toshiba Corp Interface circuit for key telephone set for key telephone system
JPH0625757U (en) * 1992-08-27 1994-04-08 株式会社堀場製作所 Methane / non-methane hydrocarbon analyzer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01216698A (en) * 1988-02-24 1989-08-30 Toshiba Corp Interface circuit for key telephone set for key telephone system
JPH0625757U (en) * 1992-08-27 1994-04-08 株式会社堀場製作所 Methane / non-methane hydrocarbon analyzer

Also Published As

Publication number Publication date
JPS5923676B2 (en) 1984-06-04

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