JPS57101488A - Data transfer system - Google Patents

Data transfer system

Info

Publication number
JPS57101488A
JPS57101488A JP17754780A JP17754780A JPS57101488A JP S57101488 A JPS57101488 A JP S57101488A JP 17754780 A JP17754780 A JP 17754780A JP 17754780 A JP17754780 A JP 17754780A JP S57101488 A JPS57101488 A JP S57101488A
Authority
JP
Japan
Prior art keywords
information
flag
processor
frame
data transfer
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
JP17754780A
Other languages
Japanese (ja)
Other versions
JPS632194B2 (en
Inventor
Atsuhisa Takahashi
Yoshiaki Matsuura
Yoshio Morita
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 JP17754780A priority Critical patent/JPS57101488A/en
Publication of JPS57101488A publication Critical patent/JPS57101488A/en
Publication of JPS632194B2 publication Critical patent/JPS632194B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To perform information processing efficiently and surely, by using a part of specific channel as a flag to possess indicating function of information, in the data transfer between a distribution stage processor using a PCM line and a terminal controller. CONSTITUTION:Information transmission/reception between a distribution stage NW call processor CPR making exchange of call and a line processor LPR of terminals LC, RLC is made via PCM lines l0, l1, and 16Ts of one multi-frame consisting of 32 time slots (Ts) is used. A frame F0 of information group CB of 16Ts is taken for MFAS for synchronism and the first 2-bit of the frame F1 is used as a flag. This flag takes a tri-state as functions; information is during transmission, information is transmitted, and information if the same as the previous one or not. A processor CPR at the reception side monitors the flag of written information in a memory and processes after discriminating read-in is enable, read-in is required or not required.
JP17754780A 1980-12-16 1980-12-16 Data transfer system Granted JPS57101488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17754780A JPS57101488A (en) 1980-12-16 1980-12-16 Data transfer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17754780A JPS57101488A (en) 1980-12-16 1980-12-16 Data transfer system

Publications (2)

Publication Number Publication Date
JPS57101488A true JPS57101488A (en) 1982-06-24
JPS632194B2 JPS632194B2 (en) 1988-01-18

Family

ID=16032849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17754780A Granted JPS57101488A (en) 1980-12-16 1980-12-16 Data transfer system

Country Status (1)

Country Link
JP (1) JPS57101488A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62208794A (en) * 1986-03-06 1987-09-14 Fujitsu Ltd Data transfer system inter-processors
JPH0193289A (en) * 1987-10-05 1989-04-12 Hitachi Ltd Remote exchange system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62208794A (en) * 1986-03-06 1987-09-14 Fujitsu Ltd Data transfer system inter-processors
JPH0193289A (en) * 1987-10-05 1989-04-12 Hitachi Ltd Remote exchange system

Also Published As

Publication number Publication date
JPS632194B2 (en) 1988-01-18

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