JPS52149042A - Power throw-in detection system for terminal - Google Patents

Power throw-in detection system for terminal

Info

Publication number
JPS52149042A
JPS52149042A JP6450276A JP6450276A JPS52149042A JP S52149042 A JPS52149042 A JP S52149042A JP 6450276 A JP6450276 A JP 6450276A JP 6450276 A JP6450276 A JP 6450276A JP S52149042 A JPS52149042 A JP S52149042A
Authority
JP
Japan
Prior art keywords
terminal
detection system
power throw
power
throw
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
JP6450276A
Other languages
Japanese (ja)
Inventor
Kazunori Sato
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 Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6450276A priority Critical patent/JPS52149042A/en
Publication of JPS52149042A publication Critical patent/JPS52149042A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To inform the power throw-in at the terminal unit to the terminal control unit by sending the power throw-in signal to the terminal control unit using the signal line used for the ordinary information signal transfer, without adding any power supply information nor having any operation of other terminals.
COPYRIGHT: (C)1977,JPO&Japio
JP6450276A 1976-06-04 1976-06-04 Power throw-in detection system for terminal Pending JPS52149042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6450276A JPS52149042A (en) 1976-06-04 1976-06-04 Power throw-in detection system for terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6450276A JPS52149042A (en) 1976-06-04 1976-06-04 Power throw-in detection system for terminal

Publications (1)

Publication Number Publication Date
JPS52149042A true JPS52149042A (en) 1977-12-10

Family

ID=13260029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6450276A Pending JPS52149042A (en) 1976-06-04 1976-06-04 Power throw-in detection system for terminal

Country Status (1)

Country Link
JP (1) JPS52149042A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59154520A (en) * 1983-02-23 1984-09-03 Hitachi Ltd Power source control system
JPS62154830A (en) * 1985-12-26 1987-07-09 Nec Corp Communication line scheduling system
JPH01120926A (en) * 1987-11-05 1989-05-12 Pioneer Electron Corp Polling system in audio system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59154520A (en) * 1983-02-23 1984-09-03 Hitachi Ltd Power source control system
JPH0310128B2 (en) * 1983-02-23 1991-02-13 Hitachi Ltd
JPS62154830A (en) * 1985-12-26 1987-07-09 Nec Corp Communication line scheduling system
JPH01120926A (en) * 1987-11-05 1989-05-12 Pioneer Electron Corp Polling system in audio system
JPH0561824B2 (en) * 1987-11-05 1993-09-07 Pioneer Electronic Corp

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