JPH0470231A - Duplex system for network - Google Patents

Duplex system for network

Info

Publication number
JPH0470231A
JPH0470231A JP2181589A JP18158990A JPH0470231A JP H0470231 A JPH0470231 A JP H0470231A JP 2181589 A JP2181589 A JP 2181589A JP 18158990 A JP18158990 A JP 18158990A JP H0470231 A JPH0470231 A JP H0470231A
Authority
JP
Japan
Prior art keywords
equipment
communication control
abnormality
data
reception
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
JP2181589A
Other languages
Japanese (ja)
Inventor
Hideaki Muratani
Original Assignee
Toshiba Corp
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 filed Critical Toshiba Corp
Priority to JP2181589A priority Critical patent/JPH0470231A/en
Publication of JPH0470231A publication Critical patent/JPH0470231A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the complication in system constitution and to improve reliability by providing an abnormality informing means which detects abnormality in a communication control equipment and informing the other communication control equipment.
CONSTITUTION: When abnormality occurs in a main data communication control equipment 7 in the middle of operation, a controller 13 discriminates it and transmits data from a signal transmission/reception part 15 to a slave data communication control equipment 9 on standby. The signal transmission/ reception part 25 of the equipment 9 discriminates the abnormality of the equipment 7 by a signal received through a trunk network 5 and a controller 23 switches the equipment 9 in an operation state, transmits the data from the trunk network 5 through the transmission/reception part 25 after the data fetched from a branch line network 1 is converted for the trunk network 5. On the other hand, the equipment 7 is switched to the standby state. Thus, the reliability of the system is improved without complicating the system since the main equipment 7 and the slave equipment 9 can be switched without providing a duplex switching device.
COPYRIGHT: (C)1992,JPO&Japio
JP2181589A 1990-07-11 1990-07-11 Duplex system for network Pending JPH0470231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2181589A JPH0470231A (en) 1990-07-11 1990-07-11 Duplex system for network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2181589A JPH0470231A (en) 1990-07-11 1990-07-11 Duplex system for network

Publications (1)

Publication Number Publication Date
JPH0470231A true JPH0470231A (en) 1992-03-05

Family

ID=16103454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2181589A Pending JPH0470231A (en) 1990-07-11 1990-07-11 Duplex system for network

Country Status (1)

Country Link
JP (1) JPH0470231A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6357033B1 (en) 1998-03-06 2002-03-12 Nec Corporation Communication processing control apparatus and information processing system having the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6357033B1 (en) 1998-03-06 2002-03-12 Nec Corporation Communication processing control apparatus and information processing system having the same

Similar Documents

Publication Publication Date Title
JPH0470231A (en) Duplex system for network
JPS60248029A (en) Line switching system
JPS62137929A (en) Line supervisory system
JPH04271542A (en) Data transmission circuit
JPH0352399A (en) Control system for radio telephone system
JPS648736A (en) Answer-back system
JPH02141041A (en) Switching control system for data communication line
JPH02105644A (en) Optical switch
JPS63113714A (en) Communication network for closed area
JPH04260297A (en) System reset method
JPH04294431A (en) Trouble data collecting device
JPS6367842A (en) Load controlling system
JPS62196925A (en) Switching system for hot stand-by transmission
JPH04272377A (en) Remote control system card insertion type switch
JPH02234530A (en) Automatic switching system for data transmission line
JPH0414939A (en) Wire communication system
JPH0477127A (en) Line switching method for communication equipment and communication equipment
JPH03250934A (en) Time division multiplex transmission control system
JPH0193946A (en) Switchboard for satellite communication
JPH0260361A (en) Network control switching system for terminal equipment
JPH01215147A (en) System for duplexing monitor data transfer line
JPH04256224A (en) Maintenance signal transmission system
JPH04239835A (en) Terminal equipment for polling system
JPS63143639A (en) System monitoring device
JPH04156784A (en) System for controlling studio equipment