JPH0435940B2 - - Google Patents
Info
- Publication number
- JPH0435940B2 JPH0435940B2 JP56102569A JP10256981A JPH0435940B2 JP H0435940 B2 JPH0435940 B2 JP H0435940B2 JP 56102569 A JP56102569 A JP 56102569A JP 10256981 A JP10256981 A JP 10256981A JP H0435940 B2 JPH0435940 B2 JP H0435940B2
- Authority
- JP
- Japan
- Prior art keywords
- interface
- switch module
- test
- highway
- switch
- 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.)
- Expired - Lifetime
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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56102569A JPS583452A (ja) | 1981-06-30 | 1981-06-30 | 折返し試験方式 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56102569A JPS583452A (ja) | 1981-06-30 | 1981-06-30 | 折返し試験方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS583452A JPS583452A (ja) | 1983-01-10 |
JPH0435940B2 true JPH0435940B2 (en]) | 1992-06-12 |
Family
ID=14330848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56102569A Granted JPS583452A (ja) | 1981-06-30 | 1981-06-30 | 折返し試験方式 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS583452A (en]) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61251397A (ja) * | 1985-04-30 | 1986-11-08 | Fujitsu Ltd | 交換機の試験方法 |
JPH0479594A (ja) * | 1990-07-20 | 1992-03-12 | Fujitsu Ltd | 通信チャネル試験装置及び通信チャネル試験システム |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS552113A (en) * | 1978-06-19 | 1980-01-09 | Japan Styrene Paper Corp | Method and metal member for securing heattinsulating board |
-
1981
- 1981-06-30 JP JP56102569A patent/JPS583452A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS583452A (ja) | 1983-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4601028A (en) | Method of and apparatus for checking datapath failure in a communication muldem | |
US5265089A (en) | Loopback test circuit | |
EP0399308A2 (en) | Computer network for real time control with automatic fault identification and by-pass | |
US4413335A (en) | Fault recovery apparatus for a PCM switching network | |
JPH09507982A (ja) | 信号保護及び監視システム | |
US4485467A (en) | Digital information switch matrix with on-line/off-line diagnostic features | |
US5146474A (en) | Circuit arrangement for the routine testing of an interface between line terminator groups and the switching matrix network of a PCM telecommunication switching system | |
JPH0435940B2 (en]) | ||
JP2847388B2 (ja) | データ伝送路の保護装置 | |
JPH1127282A (ja) | オンライン回線モニタシステム | |
JP3270924B2 (ja) | リング型伝送装置のバイパス制御方式 | |
SE461432B (sv) | Tidsmultiplexkopplingssystem med utrustning foer testning av ledig tidsluckevaeg | |
JP3156465B2 (ja) | 自動診断機能付多重化装置 | |
JP3781523B2 (ja) | 光加入者線伝送装置および予備系光伝送路監視方法 | |
JPH07321810A (ja) | 経路切替方式 | |
JP2635733B2 (ja) | 保守試験方法 | |
JPH1168691A (ja) | 交換機−sdh回線カード間回線試験方式 | |
JPH03104366A (ja) | 予備系通話路折り返し試験方式 | |
JPS6242421B2 (en]) | ||
JPH0759002B2 (ja) | 時分割通話路スイツチ方式 | |
KR19980069185A (ko) | 교환시스템의 트렁크 루프백 시험방법 | |
JPS61230447A (ja) | ル−プネツトワ−クの試験方式 | |
JPS58205354A (ja) | 交換装置試験方式 | |
JPH05136733A (ja) | 光フアイバ伝送システム | |
JPS6240897B2 (en]) |