BE387417A - - Google Patents
Info
- Publication number
- BE387417A BE387417A BE387417DA BE387417A BE 387417 A BE387417 A BE 387417A BE 387417D A BE387417D A BE 387417DA BE 387417 A BE387417 A BE 387417A
- Authority
- BE
- Belgium
- Prior art keywords
- relay
- communication
- cut
- line
- pulse
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE387417A true BE387417A (da) |
Family
ID=55881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE387417D BE387417A (da) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE387417A (da) |
-
0
- BE BE387417D patent/BE387417A/fr unknown
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