FI875542A0 - FOERFARANDE FOER TESTNING AV EN ANSLUTNINGSENHET. - Google Patents
FOERFARANDE FOER TESTNING AV EN ANSLUTNINGSENHET.Info
- Publication number
- FI875542A0 FI875542A0 FI875542A FI875542A FI875542A0 FI 875542 A0 FI875542 A0 FI 875542A0 FI 875542 A FI875542 A FI 875542A FI 875542 A FI875542 A FI 875542A FI 875542 A0 FI875542 A0 FI 875542A0
- Authority
- FI
- Finland
- Prior art keywords
- simulated parameters
- anslutningsenhet
- pcm
- error signal
- interrupted
- Prior art date
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
- H04Q11/0421—Circuit arrangements therefor
-
- 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)
- Monitoring And Testing Of Exchanges (AREA)
- Emergency Protection Circuit Devices (AREA)
- Memory System Of A Hierarchy Structure (AREA)
- Eye Examination Apparatus (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Electrophonic Musical Instruments (AREA)
- Time-Division Multiplex Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
- Electrically Operated Instructional Devices (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
In an interface unit (FAU) for connecting a PCM transmission path (PCM-Ü) to an exchange of a TDM telecommunications system, the supervisory circuits (Ü1 to Ün) of the system, which monitor information transmission criteria, should be monitored in such a way that their actual function is interrupted for a short time only. To achieve this, they are supplied successively with simulated parameters corresponding to an error event, even if they transmit one group- individual alarm signal only. If an error signal is produced, the supply of simulated parameters is immediately interrupted. If no error signal of this type occurs, the simulated parameters are fed in at least once more. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3643112 | 1986-12-17 | ||
DE3643112 | 1986-12-17 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI875542A0 true FI875542A0 (en) | 1987-12-16 |
FI875542A FI875542A (en) | 1988-06-18 |
FI87617B FI87617B (en) | 1992-10-15 |
FI87617C FI87617C (en) | 1993-01-25 |
Family
ID=6316408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI875542A FI87617C (en) | 1986-12-17 | 1987-12-16 | FOERFARANDE FOER TESTNING AV EN ANSLUTNINGSENHET |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0272513B1 (en) |
AT (1) | ATE66557T1 (en) |
BR (1) | BR8706850A (en) |
DE (1) | DE3772354D1 (en) |
DK (1) | DK166525B1 (en) |
FI (1) | FI87617C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8923158D0 (en) * | 1989-10-13 | 1989-11-29 | Plessey Telecomm | Fault detection and bandwidth monitoring means for an atd switch |
ATE115805T1 (en) * | 1990-03-23 | 1994-12-15 | Siemens Ag | CIRCUIT ARRANGEMENT FOR ROUTINE TESTING OF AN INTERFACE BETWEEN TERMINAL GROUPS AND THE SWITCHING NETWORK OF A PCM COMMUNICATION SWITCHING SYSTEM. |
-
1987
- 1987-12-03 AT AT87117918T patent/ATE66557T1/en not_active IP Right Cessation
- 1987-12-03 DE DE8787117918T patent/DE3772354D1/en not_active Expired - Fee Related
- 1987-12-03 EP EP87117918A patent/EP0272513B1/en not_active Expired - Lifetime
- 1987-12-16 BR BR8706850A patent/BR8706850A/en not_active IP Right Cessation
- 1987-12-16 FI FI875542A patent/FI87617C/en not_active IP Right Cessation
- 1987-12-16 DK DK661287A patent/DK166525B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK661287A (en) | 1988-06-18 |
FI875542A (en) | 1988-06-18 |
FI87617B (en) | 1992-10-15 |
EP0272513A3 (en) | 1988-08-03 |
EP0272513A2 (en) | 1988-06-29 |
DK661287D0 (en) | 1987-12-16 |
BR8706850A (en) | 1988-07-26 |
FI87617C (en) | 1993-01-25 |
DK166525B1 (en) | 1993-06-01 |
DE3772354D1 (en) | 1991-09-26 |
EP0272513B1 (en) | 1991-08-21 |
ATE66557T1 (en) | 1991-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed | ||
MM | Patent lapsed |
Owner name: SIEMENS AKTIENGESELLSCHAFT |