JPS5792946A - Transmission system - Google Patents
Transmission systemInfo
- Publication number
- JPS5792946A JPS5792946A JP55167985A JP16798580A JPS5792946A JP S5792946 A JPS5792946 A JP S5792946A JP 55167985 A JP55167985 A JP 55167985A JP 16798580 A JP16798580 A JP 16798580A JP S5792946 A JPS5792946 A JP S5792946A
- Authority
- JP
- Japan
- Prior art keywords
- driver
- transmission line
- bus transmission
- data
- line
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
Landscapes
- Small-Scale Networks (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
PURPOSE:To make the operation of a titled system possible even if a disconnection fault occurs on a transmission line, by constituting the bus transmission system into a loop. CONSTITUTION:A changeover switch 40 in a control station 35 is switched as shown by the solid line at the normality time. Consequently, data from a control circuit 42 is transmitted to a bus transmission line 90 through a driver 36 and is received by a receiving driver 47 in each of terminal equipments 43-46 as required. Transmission data from each terminal equipment is transmitted to the bus transmission line 90 through a driver 48 and is received by a receiver 38 in the control station. If the bus transmission line is disconnected at a point marked with a cross, this disconnection state is detected by a fault detector 41. Then, the changeover switch 40 is moved in the direction of the dotted line to operate a transmitting driver 39, thus transmitting and receiving data to and from terminals 45 and 46 which are disconnected by this fault.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55167985A JPS5792946A (en) | 1980-12-01 | 1980-12-01 | Transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55167985A JPS5792946A (en) | 1980-12-01 | 1980-12-01 | Transmission system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5792946A true JPS5792946A (en) | 1982-06-09 |
JPH0217977B2 JPH0217977B2 (en) | 1990-04-24 |
Family
ID=15859661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55167985A Granted JPS5792946A (en) | 1980-12-01 | 1980-12-01 | Transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5792946A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04261246A (en) * | 1991-01-11 | 1992-09-17 | Mitsubishi Electric Corp | Transmission system and transmission method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5413935A (en) * | 1977-07-01 | 1979-02-01 | Matsushita Electric Ind Co Ltd | Data communication device |
JPS5552656A (en) * | 1978-10-12 | 1980-04-17 | Toshiba Corp | Data transmission system |
-
1980
- 1980-12-01 JP JP55167985A patent/JPS5792946A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5413935A (en) * | 1977-07-01 | 1979-02-01 | Matsushita Electric Ind Co Ltd | Data communication device |
JPS5552656A (en) * | 1978-10-12 | 1980-04-17 | Toshiba Corp | Data transmission system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04261246A (en) * | 1991-01-11 | 1992-09-17 | Mitsubishi Electric Corp | Transmission system and transmission method |
Also Published As
Publication number | Publication date |
---|---|
JPH0217977B2 (en) | 1990-04-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES8609851A1 (en) | Loop transmission system. | |
EP0137158A3 (en) | Remote hub television and security systems | |
AU7326691A (en) | A control and communication system, a radio receiver and a control and communication method | |
JPS5792946A (en) | Transmission system | |
JPS6439845A (en) | Data transmission equipment | |
DE3881681D1 (en) | DATA TRANSMISSION SYSTEM CONNECTABLE TO A TELEPHONE DIALING NETWORK. | |
JPS56114450A (en) | Signal transmission system | |
JPS5720051A (en) | Reception switching system of digital radio system | |
DE3462651D1 (en) | Switching system | |
JPS56158570A (en) | Facsimile dispatching broadcast communication system | |
JPS57162531A (en) | Electric communication system | |
JPS5652946A (en) | Circuit test system of mobile communication | |
JPS648736A (en) | Answer-back system | |
JPS5694851A (en) | Control system of multi-point circuit | |
JPS56149831A (en) | Duplex line switching unit | |
JPS5737944A (en) | Monitor reception system for transmitter | |
JPS5761357A (en) | Disconnecting system of signal between equipments | |
JPS5741056A (en) | Fault time bypass system of loop transmission line | |
JPS56119557A (en) | Communication mode switching system | |
JPS5755642A (en) | Branch circuit communication system | |
JPS57150244A (en) | Connection control system of communication circuit | |
JPS56132036A (en) | Confirmation system for operating equipment of terminal station | |
JPS6486720A (en) | Line switching control system | |
JPS5693497A (en) | Line concentration stage channel device | |
JPS5665225A (en) | Bus control device |