JPS55134570A - Ringer control system - Google Patents

Ringer control system

Info

Publication number
JPS55134570A
JPS55134570A JP4102679A JP4102679A JPS55134570A JP S55134570 A JPS55134570 A JP S55134570A JP 4102679 A JP4102679 A JP 4102679A JP 4102679 A JP4102679 A JP 4102679A JP S55134570 A JPS55134570 A JP S55134570A
Authority
JP
Japan
Prior art keywords
ringer
signal
output
remote
office
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
JP4102679A
Other languages
Japanese (ja)
Other versions
JPS5932939B2 (en
Inventor
Takuto Kojima
Masaaki Ito
Hisao Kono
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 JP4102679A priority Critical patent/JPS5932939B2/en
Publication of JPS55134570A publication Critical patent/JPS55134570A/en
Publication of JPS5932939B2 publication Critical patent/JPS5932939B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To synchronize ringer signals mutually between an office side and remote side by intermitting a ringer output from the office side by a timing TM signal, by coding and transferring the TM signal to the remote side, and by decoding the coded TM signal at the remote side for control over a ringer. CONSTITUTION:The output of ringer generator 51 on office side (a) of a time- division telephone exchange system is intermitted by the output of timing generating circuit 52 for synchronization with the ring-back tone of a calling subscriber. At the same time, the output of circuit 52 is coded by signal processor 54 and the coded signal is transferred to remote side (c) through the speech channel or control link of a control information transmitting frame between office side (a) and remote line concentrator (c). At remote side (c), line concentrator 11 decodes the signal and the output of ringer generator 510 is controlled by the output of unit 11. Consequently, the intermittent phases of the office-side ringer signal and remote-side ringer signals can be synchronized with each other.
JP4102679A 1979-04-06 1979-04-06 Ringer control method Expired JPS5932939B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4102679A JPS5932939B2 (en) 1979-04-06 1979-04-06 Ringer control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4102679A JPS5932939B2 (en) 1979-04-06 1979-04-06 Ringer control method

Publications (2)

Publication Number Publication Date
JPS55134570A true JPS55134570A (en) 1980-10-20
JPS5932939B2 JPS5932939B2 (en) 1984-08-11

Family

ID=12596874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4102679A Expired JPS5932939B2 (en) 1979-04-06 1979-04-06 Ringer control method

Country Status (1)

Country Link
JP (1) JPS5932939B2 (en)

Also Published As

Publication number Publication date
JPS5932939B2 (en) 1984-08-11

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