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JPS6457849A - Line switching system - Google Patents

Line switching system

Info

Publication number
JPS6457849A
JPS6457849A JP21420287A JP21420287A JPS6457849A JP S6457849 A JPS6457849 A JP S6457849A JP 21420287 A JP21420287 A JP 21420287A JP 21420287 A JP21420287 A JP 21420287A JP S6457849 A JPS6457849 A JP S6457849A
Authority
JP
Japan
Prior art keywords
signal
ais
receiving
detection signal
priority
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.)
Pending
Application number
JP21420287A
Other languages
Japanese (ja)
Inventor
Takayuki Ozaki
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 JP21420287A priority Critical patent/JPS6457849A/en
Publication of JPS6457849A publication Critical patent/JPS6457849A/en
Pending legal-status Critical Current

Links

Landscapes

  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To contrive the improvement of the releasing rate of a system transmitting a normal signal, by switching other system in receiving a switch changeover request detection signal and an AIS detection signal to one system and a switch changeover request detection signal to other system. CONSTITUTION:The transmission terminal station is provided with an AIS detection circuit 8 detecting whether or not an AIS(Alarm Indication Signal) is inputted and a processing switch control means 7 and a SW changeover request detection signal and an AIS detection signal are sent to the processing switch control means 7, which uses the detection signals to send a switch control signal with a priority such as a system having priority receiving a normal signal, a system without priority receiving a normal signal, a system receiving the AIS and a system whose input signal is interrupted. Thus, the possibility of relieving a system error receiving a normal signal is improved.
JP21420287A 1987-08-28 1987-08-28 Line switching system Pending JPS6457849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21420287A JPS6457849A (en) 1987-08-28 1987-08-28 Line switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21420287A JPS6457849A (en) 1987-08-28 1987-08-28 Line switching system

Publications (1)

Publication Number Publication Date
JPS6457849A true JPS6457849A (en) 1989-03-06

Family

ID=16651920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21420287A Pending JPS6457849A (en) 1987-08-28 1987-08-28 Line switching system

Country Status (1)

Country Link
JP (1) JPS6457849A (en)

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