JPH0252903B2 - - Google Patents
Info
- Publication number
- JPH0252903B2 JPH0252903B2 JP22437483A JP22437483A JPH0252903B2 JP H0252903 B2 JPH0252903 B2 JP H0252903B2 JP 22437483 A JP22437483 A JP 22437483A JP 22437483 A JP22437483 A JP 22437483A JP H0252903 B2 JPH0252903 B2 JP H0252903B2
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- control device
- tunnel
- call
- contact
- 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
- 230000002265 prevention Effects 0.000 description 8
- 238000012806 monitoring device Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 210000000481 breast Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
- H04M11/022—Paging systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22437483A JPS60117956A (ja) | 1983-11-30 | 1983-11-30 | 遠隔制御装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22437483A JPS60117956A (ja) | 1983-11-30 | 1983-11-30 | 遠隔制御装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60117956A JPS60117956A (ja) | 1985-06-25 |
| JPH0252903B2 true JPH0252903B2 (enExample) | 1990-11-15 |
Family
ID=16812751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22437483A Granted JPS60117956A (ja) | 1983-11-30 | 1983-11-30 | 遠隔制御装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60117956A (enExample) |
-
1983
- 1983-11-30 JP JP22437483A patent/JPS60117956A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60117956A (ja) | 1985-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2410520A (en) | Telephone system | |
| US3919487A (en) | Telephone instrument disconnect circuit | |
| US5115462A (en) | Remotely controlled apparatus for conditioning telephone line exclusive of metallic DC bypass pair | |
| JPS6251018B2 (enExample) | ||
| US3647983A (en) | Key system line card circuit | |
| JPH0252903B2 (enExample) | ||
| US2200820A (en) | Automatic telephone system | |
| JPS59186454A (ja) | 電話呼出しの際に音響源に影響を与える方法 | |
| US3649772A (en) | Line card circuit for a key telephone system | |
| US2732442A (en) | murray | |
| JPS59117851A (ja) | センタ・端末間接続方式 | |
| US4868847A (en) | Telephone intercom device | |
| US1147223A (en) | Lock-out party-line telephone system. | |
| JP3054404U (ja) | 送電線の事故情報通知装置 | |
| US3206551A (en) | Emergency reporting alarm equipment for telephone stations | |
| JP2823983B2 (ja) | 自動通報装置の試験切換回路 | |
| JPS61295750A (ja) | 検針情報伝送装置 | |
| JPS6019412Y2 (ja) | 停電時着信表示回路 | |
| US2057656A (en) | Police signal system | |
| JPH04160969A (ja) | 電話回線の網制御装置 | |
| JPS6068499A (ja) | 非常通報応答システム | |
| JP2516363Y2 (ja) | 試験台システムの留守番電話接続装置 | |
| US3902020A (en) | Party control conversion system for telephone exchanges | |
| JP2910365B2 (ja) | 端末網制御装置 | |
| SU1226673A1 (ru) | Устройство контрол сопротивлени шлейфа |