JPS6198043A - Data transmission equipment - Google Patents

Data transmission equipment

Info

Publication number
JPS6198043A
JPS6198043A JP21922984A JP21922984A JPS6198043A JP S6198043 A JPS6198043 A JP S6198043A JP 21922984 A JP21922984 A JP 21922984A JP 21922984 A JP21922984 A JP 21922984A JP S6198043 A JPS6198043 A JP S6198043A
Authority
JP
Japan
Prior art keywords
transmission
station
frame
information
addressed
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
JP21922984A
Other languages
Japanese (ja)
Inventor
Hironori Ono
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Priority to JP21922984A priority Critical patent/JPS6198043A/en
Publication of JPS6198043A publication Critical patent/JPS6198043A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To transmit information preferentially and urgently by allowing a data transmission equipment which is connected to a ring-shaped circuit to transmit a transmission right frame to itself after transmitting an information frame, and inhibiting the transmission of other station.
CONSTITUTION: Plural data transmission equipment 1 which each has an external device 3 are connected to the looped transmission circuit 2. One transmission equipment 1 when the transmission right frame addressed to an unspecified station or its station is transmitted rough the transmission circuit 2 inputs this transmission right frame to obtain the right of transmission addressed to its station. The equipment on obtaining the right of transmission sends out the information frame from its external device 3 to the transmission circuit 2 and then transmits the transmission right frame addressed to the unspecified station successively to pass the right of transmission. Further, when the external device indicates that information is transmitted preferentially and urgently, the transmission right frame addressed to its station is transmitted instead of the frame addressed to the unspecified station to inhibit the interruption of other stations. Thus, the information is transmitted preferentially and urgently.
COPYRIGHT: (C)1986,JPO&Japio
JP21922984A 1984-10-18 1984-10-18 Data transmission equipment Pending JPS6198043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21922984A JPS6198043A (en) 1984-10-18 1984-10-18 Data transmission equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21922984A JPS6198043A (en) 1984-10-18 1984-10-18 Data transmission equipment

Publications (1)

Publication Number Publication Date
JPS6198043A true JPS6198043A (en) 1986-05-16

Family

ID=16732221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21922984A Pending JPS6198043A (en) 1984-10-18 1984-10-18 Data transmission equipment

Country Status (1)

Country Link
JP (1) JPS6198043A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200013613A (en) 2018-07-30 2020-02-07 티디케이가부시기가이샤 Load port apparatus, semiconductor manufacturing apparatus, and method of controlling atmosphere in pod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200013613A (en) 2018-07-30 2020-02-07 티디케이가부시기가이샤 Load port apparatus, semiconductor manufacturing apparatus, and method of controlling atmosphere in pod

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