JPS558121A - Data switching device - Google Patents

Data switching device

Info

Publication number
JPS558121A
JPS558121A JP8012378A JP8012378A JPS558121A JP S558121 A JPS558121 A JP S558121A JP 8012378 A JP8012378 A JP 8012378A JP 8012378 A JP8012378 A JP 8012378A JP S558121 A JPS558121 A JP S558121A
Authority
JP
Japan
Prior art keywords
circuit
switch
output
control signal
control
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
JP8012378A
Other languages
Japanese (ja)
Inventor
Shunji Tanaka
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8012378A priority Critical patent/JPS558121A/en
Publication of JPS558121A publication Critical patent/JPS558121A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To secure an automatic data switch by controlling the originating control circuit and the switch circuit via the output of the switch control circuit which contains the register featuring the 1:1 correspondence to the circuit and holds the using state of the circuit. CONSTITUTION:The transmission request signals from plural terminal units are connected to originating control circuit 10, and the input and output of switch circuit 14 are connected to the data circuit, control signal generation circuit 11, control signal decoder circuit 12 and the terminal unit each. Then the output of circuit 10 receiving the transmission request from each terminal pulse the output of circuit 12 decoding the control signal sent from switch circuit of the remote side are connected to switch control circuit 13. And circuits 10 and 14 are controlled by the output of circuit 13 which contains the register featuring the 1:1 correspondence to the circuit and holds the using state of the circuit. In such way, an automatic deta switch is ensured.
JP8012378A 1978-06-30 1978-06-30 Data switching device Pending JPS558121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8012378A JPS558121A (en) 1978-06-30 1978-06-30 Data switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8012378A JPS558121A (en) 1978-06-30 1978-06-30 Data switching device

Publications (1)

Publication Number Publication Date
JPS558121A true JPS558121A (en) 1980-01-21

Family

ID=13709422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8012378A Pending JPS558121A (en) 1978-06-30 1978-06-30 Data switching device

Country Status (1)

Country Link
JP (1) JPS558121A (en)

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