JPS6439851A - Distribution control type exchanging device - Google Patents

Distribution control type exchanging device

Info

Publication number
JPS6439851A
JPS6439851A JP62196785A JP19678587A JPS6439851A JP S6439851 A JPS6439851 A JP S6439851A JP 62196785 A JP62196785 A JP 62196785A JP 19678587 A JP19678587 A JP 19678587A JP S6439851 A JPS6439851 A JP S6439851A
Authority
JP
Japan
Prior art keywords
stand
optical bus
system optical
reception
transmission
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
JP62196785A
Other languages
Japanese (ja)
Inventor
Yukichi Tatsumi
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.)
NEC Engineering Ltd
Original Assignee
NEC Engineering 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 NEC Engineering Ltd filed Critical NEC Engineering Ltd
Priority to JP62196785A priority Critical patent/JPS6439851A/en
Publication of JPS6439851A publication Critical patent/JPS6439851A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To detect whether a fault exists in a stand-by optical bus or not, and to cope therewith, by providing a stand-by system optical bus diagnostic device which can always confirm the normality of a function of the stand-by system optical bus. CONSTITUTION:A diagnostic data passes through a stand-by system optical bus 102, is received by a receiving system of a stand-by system optical bus diagnostic device 10, and at the time of transmission and reception, whether transmission and reception have been completed normally or not is checked, and in case of NO, respectively, it is displayed as an error output. When transmission is completed normally, reception interruption monitoring by the receiving system is executed, the diagnostic data transmitted through the stand-by system optical bus 102 is received, the diagnostic data of transmission and the diagnostic data of reception are compared and collated by the stand-by system optical bus diagnostic device 10, and when both the data do not coincide, it is displayed as an error output, and when they coincide, a diagnostic data is generated again and transmitted to the stand-by system optical bus 102, and a function check of the stand-by system optical bus is continued. In such a way, the stand-by system optical bus can perform the original function as the stand-by system.
JP62196785A 1987-08-05 1987-08-05 Distribution control type exchanging device Pending JPS6439851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62196785A JPS6439851A (en) 1987-08-05 1987-08-05 Distribution control type exchanging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62196785A JPS6439851A (en) 1987-08-05 1987-08-05 Distribution control type exchanging device

Publications (1)

Publication Number Publication Date
JPS6439851A true JPS6439851A (en) 1989-02-10

Family

ID=16363597

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62196785A Pending JPS6439851A (en) 1987-08-05 1987-08-05 Distribution control type exchanging device

Country Status (1)

Country Link
JP (1) JPS6439851A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06332825A (en) * 1993-05-26 1994-12-02 Nec Corp Automatic fault detection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06332825A (en) * 1993-05-26 1994-12-02 Nec Corp Automatic fault detection system

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