JPS57103489A - Call processing system for distributed digital exchange - Google Patents
Call processing system for distributed digital exchangeInfo
- Publication number
- JPS57103489A JPS57103489A JP16402780A JP16402780A JPS57103489A JP S57103489 A JPS57103489 A JP S57103489A JP 16402780 A JP16402780 A JP 16402780A JP 16402780 A JP16402780 A JP 16402780A JP S57103489 A JPS57103489 A JP S57103489A
- Authority
- JP
- Japan
- Prior art keywords
- subscriber
- module
- selection
- memory
- call processing
- 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)
- Exchange Systems With Centralized Control (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
PURPOSE:To give the flexibility of device operation and reduce the communication quantity between modules, by providing a number translation table memory, where data of subscribers are stored, in a distributed control module and by transmitting a selection signal received from a subscriber to another module. CONSTITUTION:Distributed control modules MOD-1- are connected mutually by highways JWH12-, and signal lines DL1- are connected as a common bus. The module MOD-1 is provided with a subscriber's number translation table memory 4 and a signal transmitting and receiving device 5 where a selection signal received from a subscriber is stored, and the selection number is transmitted to the signal line DL1. The selection number inputted from a shift register 6-1 and a signal line DL2-n is compared with the output of the memory 4 by comparators 7-1-7-n, and a control processing device 2 instructs a channel system 1 to select highways JHW12- through an FF group 8. Consequently, the call processing is possible for increment of the number of subscribers only by adding the memory 4, and a terminating module is discriminates.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16402780A JPS57103489A (en) | 1980-11-22 | 1980-11-22 | Call processing system for distributed digital exchange |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16402780A JPS57103489A (en) | 1980-11-22 | 1980-11-22 | Call processing system for distributed digital exchange |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57103489A true JPS57103489A (en) | 1982-06-28 |
JPS6242436B2 JPS6242436B2 (en) | 1987-09-08 |
Family
ID=15785403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16402780A Granted JPS57103489A (en) | 1980-11-22 | 1980-11-22 | Call processing system for distributed digital exchange |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57103489A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61212989A (en) * | 1985-03-18 | 1986-09-20 | Nippon Telegr & Teleph Corp <Ntt> | Data drive type digital exchange |
US6304570B1 (en) | 1986-09-16 | 2001-10-16 | Hitachi, Ltd. | Distributed type switching system |
US6618372B1 (en) | 1986-09-16 | 2003-09-09 | Hitachi, Ltd. | Packet switching system having-having self-routing switches |
US7058062B2 (en) | 1986-09-16 | 2006-06-06 | Hitachi, Ltd. | Packet switching system having self-routing switches |
-
1980
- 1980-11-22 JP JP16402780A patent/JPS57103489A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61212989A (en) * | 1985-03-18 | 1986-09-20 | Nippon Telegr & Teleph Corp <Ntt> | Data drive type digital exchange |
US6304570B1 (en) | 1986-09-16 | 2001-10-16 | Hitachi, Ltd. | Distributed type switching system |
US6335934B1 (en) | 1986-09-16 | 2002-01-01 | Hitachi, Ltd. | Distributed type switching system |
US6389025B2 (en) | 1986-09-16 | 2002-05-14 | Hitachi, Ltd. | Distributed type switching system |
US6618372B1 (en) | 1986-09-16 | 2003-09-09 | Hitachi, Ltd. | Packet switching system having-having self-routing switches |
US6639920B2 (en) | 1986-09-16 | 2003-10-28 | Hitachi, Ltd. | Distributed type switching system |
US7058062B2 (en) | 1986-09-16 | 2006-06-06 | Hitachi, Ltd. | Packet switching system having self-routing switches |
Also Published As
Publication number | Publication date |
---|---|
JPS6242436B2 (en) | 1987-09-08 |
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