JPS5665536A - Closing system of radio channel - Google Patents

Closing system of radio channel

Info

Publication number
JPS5665536A
JPS5665536A JP14149279A JP14149279A JPS5665536A JP S5665536 A JPS5665536 A JP S5665536A JP 14149279 A JP14149279 A JP 14149279A JP 14149279 A JP14149279 A JP 14149279A JP S5665536 A JPS5665536 A JP S5665536A
Authority
JP
Japan
Prior art keywords
line
closing
signal
maintenance
delivered
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
JP14149279A
Other languages
Japanese (ja)
Inventor
Kenichi Toriyama
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 Denshi KK
Original Assignee
Hitachi Denshi KK
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 Denshi KK filed Critical Hitachi Denshi KK
Priority to JP14149279A priority Critical patent/JPS5665536A/en
Publication of JPS5665536A publication Critical patent/JPS5665536A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile

Abstract

PURPOSE:To inhibit ineffective call, by preventing the start during maintenance work, through automatic closing of lines of a relay exchanger, when a terminal station radio device is used in station operating state at maintenance. CONSTITUTION:When a terminal station radio device 4 is made to local operating state for maintenance, the status signal is delivered to a line control device 3 via a signal line 9, the line control device 3 delivers closing signal when the line is during communication, closing signal is delivered to the relay exchanger 2 through a closing signal line 7 to inhibit the call to the radio channels.
JP14149279A 1979-10-31 1979-10-31 Closing system of radio channel Pending JPS5665536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14149279A JPS5665536A (en) 1979-10-31 1979-10-31 Closing system of radio channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14149279A JPS5665536A (en) 1979-10-31 1979-10-31 Closing system of radio channel

Publications (1)

Publication Number Publication Date
JPS5665536A true JPS5665536A (en) 1981-06-03

Family

ID=15293173

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14149279A Pending JPS5665536A (en) 1979-10-31 1979-10-31 Closing system of radio channel

Country Status (1)

Country Link
JP (1) JPS5665536A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57209040A (en) * 1981-05-29 1982-12-22 Tokyo Shibaura Electric Co Ultrasonic diagnostic apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57209040A (en) * 1981-05-29 1982-12-22 Tokyo Shibaura Electric Co Ultrasonic diagnostic apparatus

Similar Documents

Publication Publication Date Title
JPS5434709A (en) Call interruption system in facsimile communication
JPS5372403A (en) Loop communication system
JPS5665536A (en) Closing system of radio channel
JPS57159153A (en) Line-packet selection communicating system
JPS5593335A (en) Communication control method between mobile radio station
JPS57186863A (en) Remote switching line maintenance system
JPS53131705A (en) Automatic telephone exchange system
JPS5673997A (en) Extension transmission restricting system
JPS56123142A (en) Cordless telephone set
JPS5650643A (en) Connection system for mobile radio telephone
JPS55149563A (en) Delivery system for imposition pulse signal
JPS57136857A (en) Audible signal transmission system
JPS5435610A (en) Multi-access rural radio telephone traunking system
JPS6448533A (en) Mobile communication system monitoring system
JPS57185762A (en) Facsimile transmission system
JPS5436113A (en) Failure transfer system for non-attendant station
JPS56125138A (en) Message communication system
JPS5438710A (en) Terminating call connection system for automatic private branch exchange
JPS5436112A (en) Remote test system for non-attendant station
JPS6424527A (en) Radio telephone system
JPS5216114A (en) Connection system of telephone exchanger
JPS5489406A (en) Connection control system
JPS57150244A (en) Connection control system of communication circuit
JPS57197955A (en) Paging system of remote line concentration system
JPS54152410A (en) Informaton transmission system