JPS6436229A - Hitless switching control system - Google Patents
Hitless switching control systemInfo
- Publication number
- JPS6436229A JPS6436229A JP19170887A JP19170887A JPS6436229A JP S6436229 A JPS6436229 A JP S6436229A JP 19170887 A JP19170887 A JP 19170887A JP 19170887 A JP19170887 A JP 19170887A JP S6436229 A JPS6436229 A JP S6436229A
- Authority
- JP
- Japan
- Prior art keywords
- information
- state
- signal
- switching control
- data
- 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
Landscapes
- Detection And Prevention Of Errors In Transmission (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
PURPOSE:To prevent a hit of data by providing a system switching control section applying switching control to two systems of control memories, buffers in a proper timing to a time division multiplexer in a digital transmission system. CONSTITUTION:The moment a trigger signal revising a multiplexed position is applied, that is, in the transition of state A to B, a selection control signal 13 applies system switching from information 16 into information 17 and it is being written in a sequential address of a data memory 12 in the multiplex location after the revision. In the transfer of state B into C, the selection control signals 14, 15 in the state B apply system switching from information 18 into information 19 by the signal 14 and from information 16 into information 17 by the signal 15. Then the readout and separation are applied at the address after revision and the state is kept afterward. Thus, a hitless data is caused in revising the multiplex location of the terminal equipment and the transmission line interface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62191708A JP2560737B2 (en) | 1987-07-31 | 1987-07-31 | Instantaneous interruption switching control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62191708A JP2560737B2 (en) | 1987-07-31 | 1987-07-31 | Instantaneous interruption switching control method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6436229A true JPS6436229A (en) | 1989-02-07 |
JP2560737B2 JP2560737B2 (en) | 1996-12-04 |
Family
ID=16279157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62191708A Expired - Lifetime JP2560737B2 (en) | 1987-07-31 | 1987-07-31 | Instantaneous interruption switching control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2560737B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009022033A (en) * | 2008-09-08 | 2009-01-29 | Fujitsu Ltd | Method and apparatus for changing line connection |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6257399A (en) * | 1985-09-05 | 1987-03-13 | Oki Electric Ind Co Ltd | Line setting system |
-
1987
- 1987-07-31 JP JP62191708A patent/JP2560737B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6257399A (en) * | 1985-09-05 | 1987-03-13 | Oki Electric Ind Co Ltd | Line setting system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009022033A (en) * | 2008-09-08 | 2009-01-29 | Fujitsu Ltd | Method and apparatus for changing line connection |
Also Published As
Publication number | Publication date |
---|---|
JP2560737B2 (en) | 1996-12-04 |
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