JPS5915174Y2 - 主装置と端末機関における音声周波信号、電力およびデジタルパルス伝送回路 - Google Patents
主装置と端末機関における音声周波信号、電力およびデジタルパルス伝送回路Info
- Publication number
- JPS5915174Y2 JPS5915174Y2 JP6650278U JP6650278U JPS5915174Y2 JP S5915174 Y2 JPS5915174 Y2 JP S5915174Y2 JP 6650278 U JP6650278 U JP 6650278U JP 6650278 U JP6650278 U JP 6650278U JP S5915174 Y2 JPS5915174 Y2 JP S5915174Y2
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- audio frequency
- circuit
- terminal
- power
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims description 41
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Devices For Supply Of Signal Current (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6650278U JPS5915174Y2 (ja) | 1978-05-19 | 1978-05-19 | 主装置と端末機関における音声周波信号、電力およびデジタルパルス伝送回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6650278U JPS5915174Y2 (ja) | 1978-05-19 | 1978-05-19 | 主装置と端末機関における音声周波信号、電力およびデジタルパルス伝送回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54169411U JPS54169411U (enrdf_load_stackoverflow) | 1979-11-30 |
JPS5915174Y2 true JPS5915174Y2 (ja) | 1984-05-04 |
Family
ID=28972561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6650278U Expired JPS5915174Y2 (ja) | 1978-05-19 | 1978-05-19 | 主装置と端末機関における音声周波信号、電力およびデジタルパルス伝送回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5915174Y2 (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57129565A (en) * | 1981-02-04 | 1982-08-11 | Nitsuko Ltd | Key telephone system |
-
1978
- 1978-05-19 JP JP6650278U patent/JPS5915174Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS54169411U (enrdf_load_stackoverflow) | 1979-11-30 |
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