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JPS6444652A - Loop data transmission system - Google Patents

Loop data transmission system

Info

Publication number
JPS6444652A
JPS6444652A JP20095187A JP20095187A JPS6444652A JP S6444652 A JPS6444652 A JP S6444652A JP 20095187 A JP20095187 A JP 20095187A JP 20095187 A JP20095187 A JP 20095187A JP S6444652 A JPS6444652 A JP S6444652A
Authority
JP
Japan
Prior art keywords
data
frame
data transmission
transmission equipment
slave station
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
JP20095187A
Other languages
Japanese (ja)
Other versions
JP2659192B2 (en
Inventor
Yoshihiko Hasegawa
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
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 filed Critical NEC Corp
Priority to JP62200951A priority Critical patent/JP2659192B2/en
Publication of JPS6444652A publication Critical patent/JPS6444652A/en
Application granted granted Critical
Publication of JP2659192B2 publication Critical patent/JP2659192B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To efficiently obtain the number of lines of 1:1 or 1:N whose speed is lower than a minimum data transmission speed determined by the frame format, by adding a number to each frame and equalizing an extent of delay correction to a data length corresponding to the frame number. CONSTITUTION:Data A is inserted to the frame having a frame number #1 in a data transmission equipment (slave station) 2, and the frame is only relayed in a data transmission equipment (slave station) 3. In a data transmission equipment (slave station) 4, the frame number #1 is discriminated to branch data A and data B is inserted to the frame having the frame number #1. Data returned from the data transmission equipment (slave station) 4 is subjected to transmission delay correction by the number of frames corresponding to the frame number in a reception data multiframe buffer memory circuit 9 of a data transmission equipment (master station) 1 to keep the sequence of the frame number. The data transmission equipment (slave station) 2 discriminates the frame number #1 in reception data to branch data B.
JP62200951A 1987-08-13 1987-08-13 Loop data transmission method Expired - Lifetime JP2659192B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62200951A JP2659192B2 (en) 1987-08-13 1987-08-13 Loop data transmission method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62200951A JP2659192B2 (en) 1987-08-13 1987-08-13 Loop data transmission method

Publications (2)

Publication Number Publication Date
JPS6444652A true JPS6444652A (en) 1989-02-17
JP2659192B2 JP2659192B2 (en) 1997-09-30

Family

ID=16433022

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62200951A Expired - Lifetime JP2659192B2 (en) 1987-08-13 1987-08-13 Loop data transmission method

Country Status (1)

Country Link
JP (1) JP2659192B2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50157003A (en) * 1974-06-07 1975-12-18
JPS50157008A (en) * 1974-06-07 1975-12-18
JPS51141506A (en) * 1975-05-31 1976-12-06 Nippon Telegr & Teleph Corp <Ntt> Multiplex data transmission system
JPS5683157A (en) * 1979-12-10 1981-07-07 Mitsubishi Electric Corp Synchronizer
JPS61206343A (en) * 1985-03-11 1986-09-12 Fujitsu Ltd Word synchronous time division multiplex slot access method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50157003A (en) * 1974-06-07 1975-12-18
JPS50157008A (en) * 1974-06-07 1975-12-18
JPS51141506A (en) * 1975-05-31 1976-12-06 Nippon Telegr & Teleph Corp <Ntt> Multiplex data transmission system
JPS5683157A (en) * 1979-12-10 1981-07-07 Mitsubishi Electric Corp Synchronizer
JPS61206343A (en) * 1985-03-11 1986-09-12 Fujitsu Ltd Word synchronous time division multiplex slot access method

Also Published As

Publication number Publication date
JP2659192B2 (en) 1997-09-30

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