ZA781245B - Improvements in or relating to telecommunication switching systems - Google Patents
Improvements in or relating to telecommunication switching systemsInfo
- Publication number
- ZA781245B ZA781245B ZA00781245A ZA781245A ZA781245B ZA 781245 B ZA781245 B ZA 781245B ZA 00781245 A ZA00781245 A ZA 00781245A ZA 781245 A ZA781245 A ZA 781245A ZA 781245 B ZA781245 B ZA 781245B
- Authority
- ZA
- South Africa
- Prior art keywords
- relating
- switching systems
- telecommunication switching
- telecommunication
- systems
- Prior art date
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/08—Indicating faults in circuits or apparatus
- H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
-
- 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)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB13131/77A GB1570113A (en) | 1977-03-29 | 1977-03-29 | Telecommunication switching systems |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA781245B true ZA781245B (en) | 1979-02-28 |
Family
ID=10017403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00781245A ZA781245B (en) | 1977-03-29 | 1977-03-03 | Improvements in or relating to telecommunication switching systems |
Country Status (3)
Country | Link |
---|---|
BR (1) | BR7801922A (en) |
GB (1) | GB1570113A (en) |
ZA (1) | ZA781245B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE459625B (en) * | 1987-12-18 | 1989-07-17 | Ericsson Telefon Ab L M | PROCEDURE MAKES MONITORING IN A TIME SELECTOR AND TIME SELECTOR WITH THE MONITORING ORGANIZATION |
AU610327B2 (en) * | 1987-12-18 | 1991-05-16 | Telefonaktiebolaget Lm Ericsson (Publ) | An error correction method in a switch and a switch provided with error correction means |
SE463900B (en) * | 1989-06-16 | 1991-02-04 | Ericsson Telefon Ab L M | PROCEDURE AND DEVICE AT A MULTIPLE PLAN UNIT IN A DIGITAL TIMER SELECTOR TO DETECT AND LOCATE ERRORS |
US5280487A (en) * | 1989-06-16 | 1994-01-18 | Telefonaktiebolaget L M Ericsson | Method and arrangement for detecting and localizing errors or faults in a multi-plane unit incorporated in a digital time switch |
-
1977
- 1977-03-03 ZA ZA00781245A patent/ZA781245B/en unknown
- 1977-03-29 GB GB13131/77A patent/GB1570113A/en not_active Expired
-
1978
- 1978-03-29 BR BR7801922A patent/BR7801922A/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB1570113A (en) | 1980-06-25 |
BR7801922A (en) | 1979-03-20 |
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