JPS558151A - Public charging local trunk - Google Patents
Public charging local trunkInfo
- Publication number
- JPS558151A JPS558151A JP8088978A JP8088978A JPS558151A JP S558151 A JPS558151 A JP S558151A JP 8088978 A JP8088978 A JP 8088978A JP 8088978 A JP8088978 A JP 8088978A JP S558151 A JPS558151 A JP S558151A
- Authority
- JP
- Japan
- Prior art keywords
- call
- connection
- outgoing
- trunk
- tandem
- 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
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
- H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Meter Arrangements (AREA)
- Interface Circuits In Exchanges (AREA)
Abstract
PURPOSE:To improve the call loss and the attenuation distortion by realizing both the public local connection call and the public outgoing connection call formed with the loop round connection of the general outgoing trunk and the tandem outgoing trunk through each different pattern state. CONSTITUTION:In the state of pattern ''2'' in the Karnaugh map, only pattern relay T operates. This suited for execution of the outgoing connection call to the tandem outgoing trunk through the loop round connection. Under these conditions, the preceding monitor and charging pulse sending circuit 1 are just inserted between call lines A and B of public charging local trunk IOT-CH8, and call capacitor C3 is by-passed by T contacts t2 and t3. And next monitor relay 2 is cut off from A and B via T contacts t0 and t1. Accordingly, no overlap is caused between circuits 1 and 2 plus C3 when the outgoing connection call is given between IOT-CH and the tandem outgoing trunk, and the connection is given between two trunks 7 and 8. As a result, both the call loss and the attenuation distortion can be improved for the long-distance call which is performed via the tandem outgoing trunk.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8088978A JPS558151A (en) | 1978-07-05 | 1978-07-05 | Public charging local trunk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8088978A JPS558151A (en) | 1978-07-05 | 1978-07-05 | Public charging local trunk |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS558151A true JPS558151A (en) | 1980-01-21 |
JPS579270B2 JPS579270B2 (en) | 1982-02-20 |
Family
ID=13730909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8088978A Granted JPS558151A (en) | 1978-07-05 | 1978-07-05 | Public charging local trunk |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS558151A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4985799A (en) * | 1987-10-08 | 1991-01-15 | Hitachi Maxell, Ltd. | Disk cartridge with improved disk cleaning |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5938744U (en) * | 1982-09-07 | 1984-03-12 | 三菱農機株式会社 | Handling tooth device in threshing machine |
JPS59127438U (en) * | 1983-02-15 | 1984-08-28 | 三菱農機株式会社 | Threshing device in threshing machine |
-
1978
- 1978-07-05 JP JP8088978A patent/JPS558151A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4985799A (en) * | 1987-10-08 | 1991-01-15 | Hitachi Maxell, Ltd. | Disk cartridge with improved disk cleaning |
Also Published As
Publication number | Publication date |
---|---|
JPS579270B2 (en) | 1982-02-20 |
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