JPH02209039A - Channel changeover switch circuit for automatic/manual control - Google Patents

Channel changeover switch circuit for automatic/manual control

Info

Publication number
JPH02209039A
JPH02209039A JP3031789A JP3031789A JPH02209039A JP H02209039 A JPH02209039 A JP H02209039A JP 3031789 A JP3031789 A JP 3031789A JP 3031789 A JP3031789 A JP 3031789A JP H02209039 A JPH02209039 A JP H02209039A
Authority
JP
Japan
Prior art keywords
automatic
channel
mode
changeover
state
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
JP3031789A
Other languages
Japanese (ja)
Other versions
JP2615969B2 (en
Inventor
Koji Takatomi
Takeshi Murata
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 JP3031789A priority Critical patent/JP2615969B2/en
Publication of JPH02209039A publication Critical patent/JPH02209039A/en
Application granted granted Critical
Publication of JP2615969B2 publication Critical patent/JP2615969B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To avoid the operation of a channel having a fault in error even when not only the changeover from the automatic mode into the manual mode of a system changeover switch takes place but also a power supply is turned from ON to OFF by using a latching relay, and keeping always the state before changeover.
CONSTITUTION: When the manual mode is switched from the automatic mode, the state before changeover is kept by a latching relay 5 to an effective channel, and the state of the channel at the automatic mode takes place as it is. When the mode is switched from the manual mode into the automatic mode, the state of the manual mode is kept by the latching relay 5 to the effective channel according to the command of the automatic channel changeover device when no command of the automatic channel changeover device 3 is given. In the case of the ON/OFF of the power supply, the state of the channel before the power OFF is kept by the latching relay 5 in relation of every case of power ON/OFF.
COPYRIGHT: (C)1990,JPO&Japio
JP3031789A 1989-02-08 1989-02-08 Automatic / manual control channel switch circuit Expired - Lifetime JP2615969B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3031789A JP2615969B2 (en) 1989-02-08 1989-02-08 Automatic / manual control channel switch circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3031789A JP2615969B2 (en) 1989-02-08 1989-02-08 Automatic / manual control channel switch circuit

Publications (2)

Publication Number Publication Date
JPH02209039A true JPH02209039A (en) 1990-08-20
JP2615969B2 JP2615969B2 (en) 1997-06-04

Family

ID=12300417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3031789A Expired - Lifetime JP2615969B2 (en) 1989-02-08 1989-02-08 Automatic / manual control channel switch circuit

Country Status (1)

Country Link
JP (1) JP2615969B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8135118B2 (en) * 2006-12-05 2012-03-13 Canon Kabushiki Kaisha Communication apparatus and method of controlling same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8135118B2 (en) * 2006-12-05 2012-03-13 Canon Kabushiki Kaisha Communication apparatus and method of controlling same

Also Published As

Publication number Publication date
JP2615969B2 (en) 1997-06-04

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