JPS55156494A - Alternation system between exchange unit - Google Patents
Alternation system between exchange unitInfo
- Publication number
- JPS55156494A JPS55156494A JP6446279A JP6446279A JPS55156494A JP S55156494 A JPS55156494 A JP S55156494A JP 6446279 A JP6446279 A JP 6446279A JP 6446279 A JP6446279 A JP 6446279A JP S55156494 A JPS55156494 A JP S55156494A
- Authority
- JP
- Japan
- Prior art keywords
- exchange
- unit
- exchange unit
- route
- control
- 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
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
- H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
- H04Q3/54508—Configuration, initialisation
- H04Q3/54533—Configuration data, translation, passwords, databases
Landscapes
- Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Exchange Systems With Centralized Control (AREA)
Abstract
PURPOSE:To shorten the time of call setting by lightening a control load on an exchange by providing a table for the number of dead circuits for every route to which each exchange unit can refer to. CONSTITUTION:Control processors P10, P20... of exchange units 10, 20... consituting a building block type exchange possess shared memory CM. Any control processor can attain access to CM and for every route, a table showing the number of dead circuits of each exchange unit is provided. As for the table for the number of dead circuits, the part of information on the unit can be rewritten by the control processor of the unit when the unit sets or resets a circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6446279A JPS55156494A (en) | 1979-05-24 | 1979-05-24 | Alternation system between exchange unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6446279A JPS55156494A (en) | 1979-05-24 | 1979-05-24 | Alternation system between exchange unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55156494A true JPS55156494A (en) | 1980-12-05 |
JPS6145920B2 JPS6145920B2 (en) | 1986-10-11 |
Family
ID=13258918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6446279A Granted JPS55156494A (en) | 1979-05-24 | 1979-05-24 | Alternation system between exchange unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55156494A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5847364A (en) * | 1981-09-16 | 1983-03-19 | Nippon Telegr & Teleph Corp <Ntt> | Detour enlargement controlling system |
JPS59174087A (en) * | 1983-03-24 | 1984-10-02 | Fujitsu Ltd | Channel matching system of decentralized control exchange |
JPS62181596A (en) * | 1985-08-23 | 1987-08-08 | エイ・ティ・アンド・ティ・コーポレーション | Method and system for controlling multiport hunt group in distributed control exchange system |
JPS62285597A (en) * | 1986-06-03 | 1987-12-11 | Nec Corp | Relay line selection system |
JPS631193A (en) * | 1986-06-19 | 1988-01-06 | Fujitsu Ltd | Outgoing trunk hunt system for multi-processor type exchange |
JPH02233091A (en) * | 1989-03-07 | 1990-09-14 | Nippon Telegr & Teleph Corp <Ntt> | Decentralized type route selection switchboard and decentralized type route selection system using it |
JPH03113997A (en) * | 1990-04-27 | 1991-05-15 | Hitachi Ltd | Time division exchange system |
JPH04367195A (en) * | 1991-06-13 | 1992-12-18 | Kokusai Denshin Denwa Co Ltd <Kdd> | Inter-unit routing method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52133711A (en) * | 1976-05-04 | 1977-11-09 | Hitachi Ltd | Circuit two-way operation system |
JPS5457807A (en) * | 1977-10-17 | 1979-05-10 | Nec Corp | Switchboard on decentralized control system |
-
1979
- 1979-05-24 JP JP6446279A patent/JPS55156494A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52133711A (en) * | 1976-05-04 | 1977-11-09 | Hitachi Ltd | Circuit two-way operation system |
JPS5457807A (en) * | 1977-10-17 | 1979-05-10 | Nec Corp | Switchboard on decentralized control system |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5847364A (en) * | 1981-09-16 | 1983-03-19 | Nippon Telegr & Teleph Corp <Ntt> | Detour enlargement controlling system |
JPS59174087A (en) * | 1983-03-24 | 1984-10-02 | Fujitsu Ltd | Channel matching system of decentralized control exchange |
JPS62181596A (en) * | 1985-08-23 | 1987-08-08 | エイ・ティ・アンド・ティ・コーポレーション | Method and system for controlling multiport hunt group in distributed control exchange system |
JPS62285597A (en) * | 1986-06-03 | 1987-12-11 | Nec Corp | Relay line selection system |
JPS631193A (en) * | 1986-06-19 | 1988-01-06 | Fujitsu Ltd | Outgoing trunk hunt system for multi-processor type exchange |
JPH02233091A (en) * | 1989-03-07 | 1990-09-14 | Nippon Telegr & Teleph Corp <Ntt> | Decentralized type route selection switchboard and decentralized type route selection system using it |
JPH03113997A (en) * | 1990-04-27 | 1991-05-15 | Hitachi Ltd | Time division exchange system |
JPH04367195A (en) * | 1991-06-13 | 1992-12-18 | Kokusai Denshin Denwa Co Ltd <Kdd> | Inter-unit routing method |
Also Published As
Publication number | Publication date |
---|---|
JPS6145920B2 (en) | 1986-10-11 |
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