JPS52137908A - Head-on collision supervisory system of transmission and reception - Google Patents

Head-on collision supervisory system of transmission and reception

Info

Publication number
JPS52137908A
JPS52137908A JP5490076A JP5490076A JPS52137908A JP S52137908 A JPS52137908 A JP S52137908A JP 5490076 A JP5490076 A JP 5490076A JP 5490076 A JP5490076 A JP 5490076A JP S52137908 A JPS52137908 A JP S52137908A
Authority
JP
Japan
Prior art keywords
reception
collision
head
transmission
supervisory system
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
JP5490076A
Other languages
Japanese (ja)
Other versions
JPS5647754B2 (en
Inventor
Toshio Matsuda
Akihiko Hori
Kohei Uchida
Ryoji Ogata
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP5490076A priority Critical patent/JPS52137908A/en
Publication of JPS52137908A publication Critical patent/JPS52137908A/en
Publication of JPS5647754B2 publication Critical patent/JPS5647754B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

PURPOSE:To make the equipment small-sized and economical, by making the reception discriminating circuit common to all the trunks and regularizing the reception process.
JP5490076A 1976-05-14 1976-05-14 Head-on collision supervisory system of transmission and reception Granted JPS52137908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5490076A JPS52137908A (en) 1976-05-14 1976-05-14 Head-on collision supervisory system of transmission and reception

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5490076A JPS52137908A (en) 1976-05-14 1976-05-14 Head-on collision supervisory system of transmission and reception

Publications (2)

Publication Number Publication Date
JPS52137908A true JPS52137908A (en) 1977-11-17
JPS5647754B2 JPS5647754B2 (en) 1981-11-11

Family

ID=12983468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5490076A Granted JPS52137908A (en) 1976-05-14 1976-05-14 Head-on collision supervisory system of transmission and reception

Country Status (1)

Country Link
JP (1) JPS52137908A (en)

Also Published As

Publication number Publication date
JPS5647754B2 (en) 1981-11-11

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