JPH0238848U - - Google Patents
Info
- Publication number
- JPH0238848U JPH0238848U JP11727288U JP11727288U JPH0238848U JP H0238848 U JPH0238848 U JP H0238848U JP 11727288 U JP11727288 U JP 11727288U JP 11727288 U JP11727288 U JP 11727288U JP H0238848 U JPH0238848 U JP H0238848U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- sensor
- telephone line
- voltage
- parallel
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は、本考案に係る回線障害検出装置の一
実施例の回路図である。
１０……電話機、２０，３０……高抵抗器、４
０……低抵抗器、５０……センサ、６０……電話
局、７０……ランプ表示部、８０……供給電源、
９０……コネクタ、１００，１０１……電話線。
FIG. 1 is a circuit diagram of an embodiment of a line failure detection device according to the present invention. 10...Telephone, 20,30...High resistor, 4
0...Low resistor, 50...Sensor, 60...Telephone office, 70...Lamp display section, 80...Power supply,
90...Connector, 100,101...Telephone line.
Claims (1)
、 低抵抗器の両端に接続されるセンサと、 センサに供給する電源と、そして、 センサの出力を表す表示部と、 を有し、低抵抗器間の電圧をセンサで検出し、
電圧が無いことで電話回線が切断していることを
通知することを特徴とする回線障害検出装置。[Claims for Utility Model Registration] In a modular type telephone, two high resistance resistors are connected in parallel to a telephone line, one low resistance resistor is connected to the two high resistance resistors, and a low resistance resistor is connected to the telephone line in parallel. It has a sensor connected to both ends of the resistor, a power source to supply the sensor, and a display section showing the output of the sensor, and the sensor detects the voltage across the low resistor.
A line fault detection device characterized by notifying that a telephone line is disconnected due to the absence of voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11727288U JPH0238848U (en) | 1988-09-06 | 1988-09-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11727288U JPH0238848U (en) | 1988-09-06 | 1988-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0238848U true JPH0238848U (en) | 1990-03-15 |
Family
ID=31360587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11727288U Pending JPH0238848U (en) | 1988-09-06 | 1988-09-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0238848U (en) |
-
1988
- 1988-09-06 JP JP11727288U patent/JPH0238848U/ja active Pending
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