JPS5642490A - Network disconnection system - Google Patents
Network disconnection systemInfo
- Publication number
- JPS5642490A JPS5642490A JP11753679A JP11753679A JPS5642490A JP S5642490 A JPS5642490 A JP S5642490A JP 11753679 A JP11753679 A JP 11753679A JP 11753679 A JP11753679 A JP 11753679A JP S5642490 A JPS5642490 A JP S5642490A
- Authority
- JP
- Japan
- Prior art keywords
- call signal
- signal pattern
- network
- disconnected
- residual 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
PURPOSE:To prevent various disturbance by making it easy to remove residual data when a network is disconnected, by writing a no-call signal pattern in a path memory only for a one-frame period when the network is disconnected as to a time- division switchboard. CONSTITUTION:When the network is disconnected, a no-call signal pattern is generated by variable-transmission-loss insertion and no-call signal pattern generator PADG and then written in path memory SPM, so that not residual data but the no- call signal pattern will be read out with the output of channel counter CTR. After the writing operation, write operation in the write address of the no-call signal pattern is inhibited with a control signal delayed by one frame by delay circuit DL. Therefore, even the decoding of a decoding circuit never generates a DC high-level signal and the switching noise of the network can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11753679A JPS5642490A (en) | 1979-09-13 | 1979-09-13 | Network disconnection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11753679A JPS5642490A (en) | 1979-09-13 | 1979-09-13 | Network disconnection system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5642490A true JPS5642490A (en) | 1981-04-20 |
JPS6211835B2 JPS6211835B2 (en) | 1987-03-14 |
Family
ID=14714217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11753679A Granted JPS5642490A (en) | 1979-09-13 | 1979-09-13 | Network disconnection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642490A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0483458A2 (en) * | 1990-10-29 | 1992-05-06 | Dsc Communications Corporation | Power reduction technique for a time slot interchanger in the subscriber interface |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7332026B2 (en) | 2020-07-22 | 2023-08-23 | 日本電信電話株式会社 | high frequency package |
-
1979
- 1979-09-13 JP JP11753679A patent/JPS5642490A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0483458A2 (en) * | 1990-10-29 | 1992-05-06 | Dsc Communications Corporation | Power reduction technique for a time slot interchanger in the subscriber interface |
Also Published As
Publication number | Publication date |
---|---|
JPS6211835B2 (en) | 1987-03-14 |
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