BE491860A - - Google Patents
Info
- Publication number
- BE491860A BE491860A BE491860DA BE491860A BE 491860 A BE491860 A BE 491860A BE 491860D A BE491860D A BE 491860DA BE 491860 A BE491860 A BE 491860A
- Authority
- BE
- Belgium
- Prior art keywords
- signaling
- bars
- relay
- criterion
- line
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE491860A true BE491860A (enEXAMPLES) |
Family
ID=136243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE491860D BE491860A (enEXAMPLES) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE491860A (enEXAMPLES) |
-
0
- BE BE491860D patent/BE491860A/fr unknown
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