BE665857A - - Google Patents
Info
- Publication number
- BE665857A BE665857A BE665857DA BE665857A BE 665857 A BE665857 A BE 665857A BE 665857D A BE665857D A BE 665857DA BE 665857 A BE665857 A BE 665857A
- Authority
- BE
- Belgium
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
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/32—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
- H04B17/407—Monitoring; Testing of relay systems without selective localization
- H04B17/408—Monitoring; Testing of relay systems without selective localization using successive loop-backs
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Fire Alarms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB26502/64A GB998760A (en) | 1964-06-26 | 1964-06-26 | Improvements in or relating to communication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE665857A true BE665857A (de) | 1965-12-24 |
Family
ID=10244672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE665857D BE665857A (de) | 1964-06-26 | 1965-06-24 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3410968A (de) |
| BE (1) | BE665857A (de) |
| BR (1) | BR6570807D0 (de) |
| CH (1) | CH438428A (de) |
| DE (1) | DE1248731B (de) |
| GB (1) | GB998760A (de) |
| NL (1) | NL6508153A (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4161634A (en) * | 1978-07-31 | 1979-07-17 | Bell Telephone Laboratories, Incorporated | Count-down addressing system |
| US4161635A (en) * | 1978-07-31 | 1979-07-17 | Bell Telephone Laboratories, Incorporated | Address verification system |
| US5680397A (en) * | 1995-03-13 | 1997-10-21 | International Business Machines Corporation | Multi-port LAN switch for a token-ring network |
| US8259908B2 (en) * | 2008-11-03 | 2012-09-04 | Microsemi Semiconductor (U.S.) Inc. | Method and apparatus for metallic line testing of a subscriber line |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3054865A (en) * | 1959-12-16 | 1962-09-18 | British Telecomm Res Ltd | Means for locating an inoperative signalling repeater |
| GB944002A (en) * | 1962-05-09 | 1963-12-11 | Standard Telephones Cables Ltd | Fault locating circuit arrangement |
-
1964
- 1964-06-26 GB GB26502/64A patent/GB998760A/en not_active Expired
-
1965
- 1965-06-21 US US465387A patent/US3410968A/en not_active Expired - Lifetime
- 1965-06-23 CH CH880365A patent/CH438428A/de unknown
- 1965-06-23 DE DEST24013A patent/DE1248731B/de active Pending
- 1965-06-24 BE BE665857D patent/BE665857A/xx unknown
- 1965-06-25 NL NL6508153A patent/NL6508153A/xx unknown
- 1965-06-28 BR BR170807/65A patent/BR6570807D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH438428A (de) | 1967-06-30 |
| US3410968A (en) | 1968-11-12 |
| GB998760A (en) | 1965-07-21 |
| BR6570807D0 (pt) | 1973-09-18 |
| DE1248731B (de) | 1967-08-31 |
| NL6508153A (de) | 1965-12-27 |