SE7708148L - METHOD AND DEVICE FOR FACILITATION OF FUNCTIONAL TESTS AND MISTAKE IN A SYSTEM WORKING ACCORDING TO THE TIME SHARING PRINCIPLE - Google Patents
METHOD AND DEVICE FOR FACILITATION OF FUNCTIONAL TESTS AND MISTAKE IN A SYSTEM WORKING ACCORDING TO THE TIME SHARING PRINCIPLEInfo
- Publication number
- SE7708148L SE7708148L SE7708148A SE7708148A SE7708148L SE 7708148 L SE7708148 L SE 7708148L SE 7708148 A SE7708148 A SE 7708148A SE 7708148 A SE7708148 A SE 7708148A SE 7708148 L SE7708148 L SE 7708148L
- Authority
- SE
- Sweden
- Prior art keywords
- time slot
- time
- facilitation
- mistake
- chosen
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/14—Monitoring arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
- H04M3/244—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for multiplex systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Time-Division Multiplex Systems (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The installation e.g. a telecommunication plant, includes sampling means such as MX1 which samples cyclically incoming lines such as 101-116 and time shared logic means CL which processes successively sampled values received from the sampling means by means of a connection memory PM addressable in time with the cyclical sampling and comprising a word memory for each incoming line for storing processing results, and a time slot corresponding to a free incoming line is chosen for the function testing and fault localization. In the method, the successive processing is inhibited for the chosen time slot; instead of sampled values, test signals for the function testing and fault localization are supplied on line PO to the logic means in the time slot during at least one scanning cycle simultaneously as the inhibition occasionally is cancelled; and the processing result for the supplied test signals is compared with an expected value in order to determine whether a normal result has been obtained. <IMAGE>
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7708148A SE435774B (en) | 1977-07-13 | 1977-07-13 | SETTING TO PERFORM FUNCTION TESTS AND ERROR DESCRIPTION IN A TIME MULTIPLEX SYSTEM |
GB7829325A GB2001228B (en) | 1977-07-13 | 1978-07-10 | Function testing and fault localization in an installationworking in a time-division multiplex manner |
YU01645/78A YU164578A (en) | 1977-07-13 | 1978-07-10 | Arrangement for fcilitating a functional test and localisation of errors in a system operating with a time multiplex |
AU37950/78A AU517383B2 (en) | 1977-07-13 | 1978-07-12 | Function test in tdm system |
FR7820853A FR2397759A1 (en) | 1977-07-13 | 1978-07-12 | TEST AND FAULT LOCATION PROCESS FOR INSTALLATION OPERATING BY MULTIPLEXING BY DIVISION IN TIME |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7708148A SE435774B (en) | 1977-07-13 | 1977-07-13 | SETTING TO PERFORM FUNCTION TESTS AND ERROR DESCRIPTION IN A TIME MULTIPLEX SYSTEM |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7708148L true SE7708148L (en) | 1979-01-14 |
SE435774B SE435774B (en) | 1984-10-15 |
Family
ID=20331861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7708148A SE435774B (en) | 1977-07-13 | 1977-07-13 | SETTING TO PERFORM FUNCTION TESTS AND ERROR DESCRIPTION IN A TIME MULTIPLEX SYSTEM |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU517383B2 (en) |
FR (1) | FR2397759A1 (en) |
GB (1) | GB2001228B (en) |
SE (1) | SE435774B (en) |
YU (1) | YU164578A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA804385B (en) * | 1979-08-10 | 1981-07-29 | Plessey Co Ltd | Alarm monitoring arrangements for digital telecommunications switching networks |
IT8003532A0 (en) * | 1980-10-07 | 1980-10-07 | Italtel Spa | DEVICE FOR CONTROL OF THE SPACE-TEMPORAL CONTINUITY OF THE DYNAMIC CONNECTIONS OF A TRANSIT NETWORK FOR TIME DIVISION TELECOMMUNICATIONS SYSTEMS |
US4493073A (en) * | 1982-08-30 | 1985-01-08 | At&T Bell Laboratories | Maintenance of stored program controlled switching systems |
EP0166274A3 (en) * | 1984-06-04 | 1988-09-14 | Siemens Aktiengesellschaft | Circuit for detecting a defined bit pattern in binary signals appearing serially |
EP0400603A3 (en) * | 1989-05-30 | 1992-05-06 | Nec Corporation | Monitoring method for stand-by circuits suitable for a multiplexing/demultiplexing apparatus |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1444919A (en) * | 1972-11-14 | 1976-08-04 | Gen Electric Co Ltd | Telecommunication switching systems wiring harnesses for buildings |
SE379908B (en) * | 1973-08-10 | 1975-10-20 | Ellemtel Utvecklings Ab |
-
1977
- 1977-07-13 SE SE7708148A patent/SE435774B/en not_active IP Right Cessation
-
1978
- 1978-07-10 GB GB7829325A patent/GB2001228B/en not_active Expired
- 1978-07-10 YU YU01645/78A patent/YU164578A/en unknown
- 1978-07-12 AU AU37950/78A patent/AU517383B2/en not_active Expired
- 1978-07-12 FR FR7820853A patent/FR2397759A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
GB2001228A (en) | 1979-01-24 |
SE435774B (en) | 1984-10-15 |
AU517383B2 (en) | 1981-07-30 |
FR2397759A1 (en) | 1979-02-09 |
FR2397759B1 (en) | 1983-03-11 |
YU164578A (en) | 1982-10-31 |
GB2001228B (en) | 1982-01-13 |
AU3795078A (en) | 1980-01-17 |
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