JPS56147594A - Carrier system for digital subscriber line - Google Patents

Carrier system for digital subscriber line

Info

Publication number
JPS56147594A
JPS56147594A JP5128180A JP5128180A JPS56147594A JP S56147594 A JPS56147594 A JP S56147594A JP 5128180 A JP5128180 A JP 5128180A JP 5128180 A JP5128180 A JP 5128180A JP S56147594 A JPS56147594 A JP S56147594A
Authority
JP
Japan
Prior art keywords
circuit
digital
signaling
bit
subscriber line
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
JP5128180A
Other languages
Japanese (ja)
Other versions
JPS6113439B2 (en
Inventor
Kaoru Yano
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 JP5128180A priority Critical patent/JPS56147594A/en
Publication of JPS56147594A publication Critical patent/JPS56147594A/en
Publication of JPS6113439B2 publication Critical patent/JPS6113439B2/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

Abstract

PURPOSE:To select the remote terminal station regardless of the transmission system of signaling information, by connecting the digital exchanger with the digital transmission line via the master device which converts the transmission system of signaling information. CONSTITUTION:The bipolar PCM signal from the digital exchanger is converted into the unipolar PCM signal with the B-U exchanging circuit 7, and frame synchronism is taken with the synchronizing circuit 8 to separate the signaling bit. The microprocessor 10 converts this signaling bit into the individual line signal, and the coupling circuit 9 combines this individual line signal and the audio bit to transmit the result to the U-B conversion circuit 11.
JP5128180A 1980-04-17 1980-04-17 Carrier system for digital subscriber line Granted JPS56147594A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5128180A JPS56147594A (en) 1980-04-17 1980-04-17 Carrier system for digital subscriber line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5128180A JPS56147594A (en) 1980-04-17 1980-04-17 Carrier system for digital subscriber line

Publications (2)

Publication Number Publication Date
JPS56147594A true JPS56147594A (en) 1981-11-16
JPS6113439B2 JPS6113439B2 (en) 1986-04-14

Family

ID=12882547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5128180A Granted JPS56147594A (en) 1980-04-17 1980-04-17 Carrier system for digital subscriber line

Country Status (1)

Country Link
JP (1) JPS56147594A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940000049Y1 (en) * 1991-12-13 1994-01-05 금성계전 주식회사 Vacuum breaker

Also Published As

Publication number Publication date
JPS6113439B2 (en) 1986-04-14

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