JPS56141645A - Communication control system - Google Patents

Communication control system

Info

Publication number
JPS56141645A
JPS56141645A JP4420380A JP4420380A JPS56141645A JP S56141645 A JPS56141645 A JP S56141645A JP 4420380 A JP4420380 A JP 4420380A JP 4420380 A JP4420380 A JP 4420380A JP S56141645 A JPS56141645 A JP S56141645A
Authority
JP
Japan
Prior art keywords
ccu3
communication control
stored
transmission
buffer
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
JP4420380A
Other languages
Japanese (ja)
Inventor
Saneyuki Hiwatari
Hikari Masujima
Mamoru Chino
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 JP4420380A priority Critical patent/JPS56141645A/en
Publication of JPS56141645A publication Critical patent/JPS56141645A/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
    • H04L12/54—Store-and-forward switching systems 

Abstract

PURPOSE:To execute a distortionless transfer by means of normalization control, by utilizing a transmission control memory even in the event of supplying a clock which does not synchronize with the communication control device, in case when switching communication lines stored in plural communication control devices of a data switchboard mutually. CONSTITUTION:A calling subscriber line Ln is stored in the communication control of CCU2, a called subscriber line Lm is stored in the CCU3, and the lines are swithced through the highway paths HPn, HPm. A switching information is given to the communication control units CCU2, CCU3 from the central processing unit CPU, and when a call is set between the subscribers Ln, Lm, the information from the receiving circuit Rn is normalized by the receiving assembly buffer RABn, it is stored in the highway buffer RBn through the pass HPn, subsequently, the control unit CCU3 does not send directly the contents of the buffer RBn but stores them once in the transmission assembly buffer SABm which is not used at the time of switching the circuit, and transmission to the transmission circuit Sm is controlled by the clock in the CCU3.
JP4420380A 1980-04-04 1980-04-04 Communication control system Pending JPS56141645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4420380A JPS56141645A (en) 1980-04-04 1980-04-04 Communication control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4420380A JPS56141645A (en) 1980-04-04 1980-04-04 Communication control system

Publications (1)

Publication Number Publication Date
JPS56141645A true JPS56141645A (en) 1981-11-05

Family

ID=12684998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4420380A Pending JPS56141645A (en) 1980-04-04 1980-04-04 Communication control system

Country Status (1)

Country Link
JP (1) JPS56141645A (en)

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