JPH075715Y2 - 端局装置 - Google Patents
端局装置Info
- Publication number
- JPH075715Y2 JPH075715Y2 JP6302191U JP6302191U JPH075715Y2 JP H075715 Y2 JPH075715 Y2 JP H075715Y2 JP 6302191 U JP6302191 U JP 6302191U JP 6302191 U JP6302191 U JP 6302191U JP H075715 Y2 JPH075715 Y2 JP H075715Y2
- Authority
- JP
- Japan
- Prior art keywords
- line
- transformer
- midpoint
- master station
- signal
- 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 - Lifetime
Links
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6302191U JPH075715Y2 (ja) | 1991-07-16 | 1991-07-16 | 端局装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6302191U JPH075715Y2 (ja) | 1991-07-16 | 1991-07-16 | 端局装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0496166U JPH0496166U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-08-20 |
JPH075715Y2 true JPH075715Y2 (ja) | 1995-02-08 |
Family
ID=31796268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6302191U Expired - Lifetime JPH075715Y2 (ja) | 1991-07-16 | 1991-07-16 | 端局装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH075715Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1991
- 1991-07-16 JP JP6302191U patent/JPH075715Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0496166U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-08-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4058678A (en) | Remote signalling to a telephone line utilizing power line carrier signals | |
US4807225A (en) | Telephone line carrier system | |
US4829561A (en) | Apparatus for optically coupling a terminal unit to the public telephone network through a pay telephone instrument and the like | |
WO1989004569A1 (en) | Communications apparatus | |
EP0284325B1 (en) | Radio telephone | |
JPH02252329A (ja) | 無線電話装置 | |
JPH075715Y2 (ja) | 端局装置 | |
JPH04233891A (ja) | ボタン電話用インタフェース装置 | |
JPH0619241Y2 (ja) | 端局装置 | |
JP2875490B2 (ja) | コードレス電話装置および通信装置 | |
JP3767880B2 (ja) | 火災報知システム用電話装置 | |
JPS59186454A (ja) | 電話呼出しの際に音響源に影響を与える方法 | |
US3705412A (en) | Duplex interphone | |
JP3036785B2 (ja) | 電流供給方式 | |
JP2655721B2 (ja) | 集合住宅用インターホン | |
CA1303764C (en) | Apparatus for optically coupling a terminal unit to the public telephone network through a pay telephone instrument and the like | |
JPH0738657B2 (ja) | コ−ドレステレホン装置 | |
JPH0287759A (ja) | 情報伝送方式 | |
JP2553496B2 (ja) | 無線電話機 | |
JP2839152B2 (ja) | 2線式tvインターホンシステム | |
JP3254668B2 (ja) | 留守録機能付コードレス電話機 | |
JP2993242B2 (ja) | 回線端末装置 | |
JP2622595B2 (ja) | テレビインターホンシステム | |
JPS5923140B2 (ja) | Ac電力線搬送波増設電話システム | |
JPH0613967A (ja) | 移動電話端末の発信システム |