JPH0379554U - - Google Patents
Info
- Publication number
- JPH0379554U JPH0379554U JP14061289U JP14061289U JPH0379554U JP H0379554 U JPH0379554 U JP H0379554U JP 14061289 U JP14061289 U JP 14061289U JP 14061289 U JP14061289 U JP 14061289U JP H0379554 U JPH0379554 U JP H0379554U
- Authority
- JP
- Japan
- Prior art keywords
- line
- subscriber
- protection
- protection device
- switching
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Monitoring And Testing Of Exchanges (AREA)
Description
第１図は本考案回線保護装置の一実施例を示す
回路図、第２図は本考案回線保護装置の一実施例
を示す分解斜視図、第３図は本考案を用いた加入
者回線の一例を示す構成説明図、第４図は従来の
回線保護装置を用いた加入者回線を示す構成説明
図である。
１……端子、２……スイツチ、３……折返し機
能を有した従来の回線保護装置、１０……電話局
、１１……現用加入者回線、１２……予備用加入
者回線、２０……回線保護装置。
Fig. 1 is a circuit diagram showing an embodiment of the line protection device of the present invention, Fig. 2 is an exploded perspective view showing an embodiment of the line protection device of the invention, and Fig. 3 is a circuit diagram showing an embodiment of the line protection device of the present invention. FIG. 4 is a configuration explanatory diagram showing an example of a subscriber line using a conventional line protection device. DESCRIPTION OF SYMBOLS 1...terminal, 2...switch, 3...conventional line protection device with loopback function, 10...telephone office, 11...working subscriber line, 12...protection subscriber line, 20... Line protection device.
Claims (1)
され、前記加入者回線の送信線から受信線への折
返し手段を備えた回線保護装置において、 現用の加入者回線と、予備用の加入者回線に接
続され、 前記現用の加入者回線を、前記予備用の加入者
回線に切り替える手段を備えたことを特徴とする
回線保護装置。[Scope of Claim for Utility Model Registration] A line protection device installed between a subscriber's line of a dedicated line and an in-home device, and equipped with means for looping back the subscriber's line from the transmitting line to the receiving line, A line protection device, characterized in that it is connected to a line and a protection subscriber line, and includes means for switching the active subscriber line to the protection subscriber line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14061289U JPH0379554U (en) | 1989-12-06 | 1989-12-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14061289U JPH0379554U (en) | 1989-12-06 | 1989-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0379554U true JPH0379554U (en) | 1991-08-14 |
Family
ID=31687567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14061289U Pending JPH0379554U (en) | 1989-12-06 | 1989-12-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0379554U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007229459A (en) * | 2006-02-28 | 2007-09-13 | Yon Gyu Jun | Applicator for skin controlling device and skin controlling method using the same |
-
1989
- 1989-12-06 JP JP14061289U patent/JPH0379554U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007229459A (en) * | 2006-02-28 | 2007-09-13 | Yon Gyu Jun | Applicator for skin controlling device and skin controlling method using the same |