CH216835A - Device for four-wire connection of trunk lines. - Google Patents
Device for four-wire connection of trunk lines.Info
- Publication number
- CH216835A CH216835A CH216835DA CH216835A CH 216835 A CH216835 A CH 216835A CH 216835D A CH216835D A CH 216835DA CH 216835 A CH216835 A CH 216835A
- Authority
- CH
- Switzerland
- Prior art keywords
- wire connection
- trunk lines
- trunk
- lines
- wire
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE216835X | 1939-12-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH216835A true CH216835A (en) | 1941-09-15 |
Family
ID=5830411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH216835D CH216835A (en) | 1939-12-08 | 1940-09-21 | Device for four-wire connection of trunk lines. |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH216835A (en) |
FR (1) | FR868497A (en) |
-
1940
- 1940-09-21 CH CH216835D patent/CH216835A/en unknown
- 1940-12-28 FR FR868497D patent/FR868497A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR868497A (en) | 1941-12-31 |
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