JPS5694894A - Loop communication system - Google Patents
Loop communication systemInfo
- Publication number
- JPS5694894A JPS5694894A JP17367679A JP17367679A JPS5694894A JP S5694894 A JPS5694894 A JP S5694894A JP 17367679 A JP17367679 A JP 17367679A JP 17367679 A JP17367679 A JP 17367679A JP S5694894 A JPS5694894 A JP S5694894A
- Authority
- JP
- Japan
- Prior art keywords
- loop
- communication
- loops
- speed
- time slot
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
- H04M9/022—Multiplex systems
- H04M9/025—Time division multiplex systems, e.g. loop systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
PURPOSE:To realize a direct connection between the master loop and the slabe loop in case the communication speed is different between them, by controlling the switching the switching means which connects the 1st and 2nd communication loops in accordance with the output of the time slot detecting means of a communication loop. CONSTITUTION:The master loop 20 is connected to plural number of slave loops 26 via the connecting part 25-1, and a loop communication is carried out in the different communication speeds. In this case, the specified time slot of the loop 20 is detected at the time slot identifying part 39. The 1st and 2nd switching parts 41 and 42 which connect the loops 20 and 26 are controlled by the output detected at the part 39. The clock of the master loop clock generating part 27 is put into the part 42, and the output speed converting part 44 is connected to convert the signal supplied from the loop 26 into the speed of the loop 20. At the same time, the input speed converting part 43 is connected to the part 41 to supply the clock of the 1st slave loop clock generating part 40 and then convert the signal from the loop 20 into the speed of the loop 26. In such way, a direct connection is possible among the loops having the different communication speeds.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17367679A JPS5694894A (en) | 1979-12-27 | 1979-12-27 | Loop communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17367679A JPS5694894A (en) | 1979-12-27 | 1979-12-27 | Loop communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5694894A true JPS5694894A (en) | 1981-07-31 |
Family
ID=15965025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17367679A Pending JPS5694894A (en) | 1979-12-27 | 1979-12-27 | Loop communication system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5694894A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58170252A (en) * | 1982-03-31 | 1983-10-06 | Fujitsu Ltd | Data transmission system |
JPS6065643A (en) * | 1983-09-20 | 1985-04-15 | Nec Corp | Exchange of two optical loops |
JPH04192944A (en) * | 1990-11-27 | 1992-07-13 | Mitsubishi Electric Corp | Network device with storage function |
US7424227B2 (en) | 1999-07-15 | 2008-09-09 | Fujitsu Limited | Optical repeater converting wavelength and bit rate between networks |
-
1979
- 1979-12-27 JP JP17367679A patent/JPS5694894A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58170252A (en) * | 1982-03-31 | 1983-10-06 | Fujitsu Ltd | Data transmission system |
JPS6065643A (en) * | 1983-09-20 | 1985-04-15 | Nec Corp | Exchange of two optical loops |
JPH04192944A (en) * | 1990-11-27 | 1992-07-13 | Mitsubishi Electric Corp | Network device with storage function |
US7424227B2 (en) | 1999-07-15 | 2008-09-09 | Fujitsu Limited | Optical repeater converting wavelength and bit rate between networks |
US7522843B2 (en) | 1999-07-15 | 2009-04-21 | Fujitsu Limited | Optical repeater converting wavelength and bit rate between networks |
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