JPS5428686B2 - - Google Patents
Info
- Publication number
- JPS5428686B2 JPS5428686B2 JP6023671A JP6023671A JPS5428686B2 JP S5428686 B2 JPS5428686 B2 JP S5428686B2 JP 6023671 A JP6023671 A JP 6023671A JP 6023671 A JP6023671 A JP 6023671A JP S5428686 B2 JPS5428686 B2 JP S5428686B2
- Authority
- JP
- Japan
- 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.)
- Expired
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
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/14—Monitoring arrangements
-
- 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
- H04Q11/06—Time-space-time switching
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6023671A JPS5428686B2 (en:Method) | 1971-08-11 | 1971-08-11 | |
| US00275667A US3823269A (en) | 1971-08-11 | 1972-07-27 | Speech path test system for time-division switching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6023671A JPS5428686B2 (en:Method) | 1971-08-11 | 1971-08-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4826405A JPS4826405A (en:Method) | 1973-04-07 |
| JPS5428686B2 true JPS5428686B2 (en:Method) | 1979-09-18 |
Family
ID=13136321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6023671A Expired JPS5428686B2 (en:Method) | 1971-08-11 | 1971-08-11 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3823269A (en:Method) |
| JP (1) | JPS5428686B2 (en:Method) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4831812A (en:Method) * | 1971-08-30 | 1973-04-26 | ||
| US4064369A (en) * | 1975-01-31 | 1977-12-20 | North Electric Company | Method and apparatus for path testing in a time division multiplex switching network |
| US4090035A (en) * | 1975-12-17 | 1978-05-16 | Martin Marietta Corporation | Line access module |
| US4022979A (en) * | 1975-12-29 | 1977-05-10 | Bell Telephone Laboratories, Incorporated | Automatic in-service digital trunk checking circuit and method |
| US4071704A (en) * | 1977-01-26 | 1978-01-31 | Trw, Inc. | Service generator checking apparatus |
| JPS5915232B2 (ja) * | 1977-02-15 | 1984-04-07 | 沖電気工業株式会社 | 電話交換機の通話路系試験方式 |
| US4103108A (en) * | 1977-03-04 | 1978-07-25 | Northern Telecom Limited | Circuit and method for digitally measuring signal levels of pcm encoded signals |
| DE2735341C3 (de) * | 1977-08-05 | 1984-05-10 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Anordnung zur Durchgangsprüfung in Fernmeldeanlagen |
| US4268722A (en) * | 1978-02-13 | 1981-05-19 | Motorola, Inc. | Radiotelephone communications system |
| US4207433A (en) * | 1978-09-25 | 1980-06-10 | International Telephone And Telegraph Corporation | Test arrangement for communication paths in time-division multiplexed switching systems |
| US4320497A (en) * | 1978-12-07 | 1982-03-16 | Tokyo Shibaura Denki Kabushiki Kaisha | Method for testing communication paths |
| FR2503511A1 (fr) * | 1981-04-03 | 1982-10-08 | Cit Alcatel | Dispositif de controle d'un reseau de connexion numerique |
| DE3264638D1 (en) * | 1981-04-03 | 1985-08-14 | Cit Alcatel | Digital connection network |
| US4429391A (en) | 1981-05-04 | 1984-01-31 | Bell Telephone Laboratories, Incorporated | Fault and error detection arrangement |
| SE431143B (sv) * | 1982-05-26 | 1984-01-16 | Ellemtel Utvecklings Ab | Sett och anordning for genomkopplingskontroll i ett digitalt telekommunikationsnet av tidsmultiplex typ |
| US4486877A (en) * | 1982-06-25 | 1984-12-04 | At&T Bell Laboratories | Packet switching loop-around network and facilities testing |
| US4510594A (en) * | 1983-03-31 | 1985-04-09 | At&T Bell Laboratories | Loop-around testing facilities for a multiline protocol controller |
| JPS62111553A (ja) * | 1985-11-11 | 1987-05-22 | Oki Electric Ind Co Ltd | ネツトワ−ク試験方式 |
| US4745593A (en) * | 1986-11-17 | 1988-05-17 | American Telephone And Telegraph Company, At&T Bell Laboratories | Arrangement for testing packet switching networks |
| EP0306002B1 (de) * | 1987-09-01 | 1992-04-15 | Siemens Aktiengesellschaft | Verfahren zur adaptiven Phasenanpassung in einer taktsynchron betriebenen Breitband-Digitalsignal-Koppelanordnung |
| JPH0352396A (ja) * | 1989-07-19 | 1991-03-06 | Nec Corp | 通話路試験方式 |
| CA2025645C (en) * | 1989-09-19 | 1999-01-19 | Keiji Fukuda | Control channel terminating interface and its testing device for sending and receiving signal |
-
1971
- 1971-08-11 JP JP6023671A patent/JPS5428686B2/ja not_active Expired
-
1972
- 1972-07-27 US US00275667A patent/US3823269A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4826405A (en:Method) | 1973-04-07 |
| US3823269A (en) | 1974-07-09 |