JPS539406A - Detection system for vacant communicating path - Google Patents

Detection system for vacant communicating path

Info

Publication number
JPS539406A
JPS539406A JP8299376A JP8299376A JPS539406A JP S539406 A JPS539406 A JP S539406A JP 8299376 A JP8299376 A JP 8299376A JP 8299376 A JP8299376 A JP 8299376A JP S539406 A JPS539406 A JP S539406A
Authority
JP
Japan
Prior art keywords
vacant
communicating path
detection system
path
communicating
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
JP8299376A
Other languages
Japanese (ja)
Inventor
Katsuyuki Jin
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 JP8299376A priority Critical patent/JPS539406A/en
Publication of JPS539406A publication Critical patent/JPS539406A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To prevent the occurrence of communication interrupt during communication, by regarding the communicating path as busy in case of defective vacant communicating path detecting path.
JP8299376A 1976-07-14 1976-07-14 Detection system for vacant communicating path Pending JPS539406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8299376A JPS539406A (en) 1976-07-14 1976-07-14 Detection system for vacant communicating path

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8299376A JPS539406A (en) 1976-07-14 1976-07-14 Detection system for vacant communicating path

Publications (1)

Publication Number Publication Date
JPS539406A true JPS539406A (en) 1978-01-27

Family

ID=13789736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8299376A Pending JPS539406A (en) 1976-07-14 1976-07-14 Detection system for vacant communicating path

Country Status (1)

Country Link
JP (1) JPS539406A (en)

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Legal Events

Date Code Title Description
A61 First payment of annual fees (during grant procedure)

Effective date: 20031215

Free format text: JAPANESE INTERMEDIATE CODE: A61

LAPS Cancellation because of no payment of annual fees