JPS5783962A - Subscriber-line signal system - Google Patents

Subscriber-line signal system

Info

Publication number
JPS5783962A
JPS5783962A JP15950380A JP15950380A JPS5783962A JP S5783962 A JPS5783962 A JP S5783962A JP 15950380 A JP15950380 A JP 15950380A JP 15950380 A JP15950380 A JP 15950380A JP S5783962 A JPS5783962 A JP S5783962A
Authority
JP
Japan
Prior art keywords
burst
period
digital data
voice
frame
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
JP15950380A
Other languages
Japanese (ja)
Other versions
JPS6367391B2 (en
Inventor
Tetsuo Takemura
Takao Kato
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 JP15950380A priority Critical patent/JPS5783962A/en
Publication of JPS5783962A publication Critical patent/JPS5783962A/en
Publication of JPS6367391B2 publication Critical patent/JPS6367391B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To make a subscriber-line signal system compatible with the international stadards by increasing a burst repetitive period to a period obtained by multiplying a PCM sampling period by a multiple of 5 when transmittng a PCM voice singal and digital data in two directions on time-division basis, and by assigning a bit for data information to each burst. CONSTITUTION:When data signals from terminals having 2.4kbit/s and 4.8kbit/s... digital data terminal speeds, etc., recommended by CCITT recommendation X.1 are trasmitted together with voice signals, a burst repetitive period T2 is set to a multiple of 5, e.g., ten times a 2.5mus PCM sampling period; and each burst consists of a frame synchronizing bit BF for the burst, voice information transmission bits A0,A1..., and digital signal transmission bits B0- B13, which are equivalent to the double repetition of 9.6kbit/s digital data bits hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh phi1-phi11 and a gate signal to form a burst frame, which is transmitted. kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk phi1-phi11 and a gate signal to form a burst frame, which is transmitted.
JP15950380A 1980-11-14 1980-11-14 Subscriber-line signal system Granted JPS5783962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15950380A JPS5783962A (en) 1980-11-14 1980-11-14 Subscriber-line signal system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15950380A JPS5783962A (en) 1980-11-14 1980-11-14 Subscriber-line signal system

Publications (2)

Publication Number Publication Date
JPS5783962A true JPS5783962A (en) 1982-05-26
JPS6367391B2 JPS6367391B2 (en) 1988-12-26

Family

ID=15695186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15950380A Granted JPS5783962A (en) 1980-11-14 1980-11-14 Subscriber-line signal system

Country Status (1)

Country Link
JP (1) JPS5783962A (en)

Also Published As

Publication number Publication date
JPS6367391B2 (en) 1988-12-26

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