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JPS5755634A - Terminal station emergency interruption communicaton system of communication system - Google Patents

Terminal station emergency interruption communicaton system of communication system

Info

Publication number
JPS5755634A
JPS5755634A JP55130764A JP13076480A JPS5755634A JP S5755634 A JPS5755634 A JP S5755634A JP 55130764 A JP55130764 A JP 55130764A JP 13076480 A JP13076480 A JP 13076480A JP S5755634 A JPS5755634 A JP S5755634A
Authority
JP
Japan
Prior art keywords
interruption
signal
control
station
demodulator
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
JP55130764A
Other languages
Japanese (ja)
Other versions
JPS6322494B2 (en
Inventor
Takeo Matsubara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55130764A priority Critical patent/JPS5755634A/en
Publication of JPS5755634A publication Critical patent/JPS5755634A/en
Publication of JPS6322494B2 publication Critical patent/JPS6322494B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/20—Automatic or semi-automatic exchanges with means for interrupting existing connections; with means for breaking-in on conversations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To enable emergency interruption communicaton instantaneously by interrupting communication with the control desk of a control station by providing a switch. CONSTITUTION:An interruption detecting circuit 401, once detecting an interruption, outputs a significant signal to an interruption information line 53. This signal is inputted to the FSK modulator-demodulator 411 of a remote monitoring controller 41 and also used as a control signal for a switch 402, whose contact is changed from an exchange side over to a call signal line 52 side. The FSK modulator-demodulator 411, on the other hand, encodes the input interruption informaton and modulates it by FSK to send the resulting signal to a control station. The interruption information demodulated by the FSK modulator-demodulator 151 of the remote monitoring controller 15 of the control station is transferred to the control desk through an interruption information line 23 to drive an alarm tone generator. Consequently, since the signal line of a VHF radio equipment side is connected to the call signal line 52 by the signal converter 40 of a branch station, a connection between the control desk of the control station and a terminal station having made the interruption are connected mutually via a previous-arrangement circuit, so that a call is enabled.
JP55130764A 1980-09-22 1980-09-22 Terminal station emergency interruption communicaton system of communication system Granted JPS5755634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55130764A JPS5755634A (en) 1980-09-22 1980-09-22 Terminal station emergency interruption communicaton system of communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55130764A JPS5755634A (en) 1980-09-22 1980-09-22 Terminal station emergency interruption communicaton system of communication system

Publications (2)

Publication Number Publication Date
JPS5755634A true JPS5755634A (en) 1982-04-02
JPS6322494B2 JPS6322494B2 (en) 1988-05-12

Family

ID=15042092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55130764A Granted JPS5755634A (en) 1980-09-22 1980-09-22 Terminal station emergency interruption communicaton system of communication system

Country Status (1)

Country Link
JP (1) JPS5755634A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006325174A (en) * 2005-04-18 2006-11-30 Amakusa Ikeda Denki Kk Disaster information distribution system, transmitting base station and receiver used for the same system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006325174A (en) * 2005-04-18 2006-11-30 Amakusa Ikeda Denki Kk Disaster information distribution system, transmitting base station and receiver used for the same system

Also Published As

Publication number Publication date
JPS6322494B2 (en) 1988-05-12

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