JPS59113884U - Communication device alarm circuit - Google Patents
Communication device alarm circuitInfo
- Publication number
- JPS59113884U JPS59113884U JP1983005973U JP597383U JPS59113884U JP S59113884 U JPS59113884 U JP S59113884U JP 1983005973 U JP1983005973 U JP 1983005973U JP 597383 U JP597383 U JP 597383U JP S59113884 U JPS59113884 U JP S59113884U
- Authority
- JP
- Japan
- Prior art keywords
- communication device
- alarm circuit
- circuit
- device alarm
- alarm
- 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
Landscapes
- Emergency Alarm Devices (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の通信装置の警報回路の一例を示し、第２
図は本考案による通信装置の警報回路を示す。
１・・・警報回路の電源、２・・・警報素子、３・・・
警報素子駆動用半導体回路、４・・・アース、５・・・
警報回路制御信号、６・・・ダイオード。Figure 1 shows an example of an alarm circuit of a conventional communication device;
The figure shows an alarm circuit of a communication device according to the invention. 1... Alarm circuit power supply, 2... Alarm element, 3...
Semiconductor circuit for driving alarm element, 4... Earth, 5...
Alarm circuit control signal, 6...diode.
Claims (1)
て構成される警報用素子を駆動する警報回路において、
該回路の電源供給端子に直列かつ順方向にダイオードを
挿入し、該回路の電源に重畳した逆サージ電圧を抑圧す
ることを特徴とする通信装置の警報回路。In an alarm circuit that drives an alarm element composed of a transistor, a photocoupler, or a combination thereof,
An alarm circuit for a communication device, characterized in that a diode is inserted in series and in the forward direction to a power supply terminal of the circuit to suppress a reverse surge voltage superimposed on the power supply of the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983005973U JPS59113884U (en) | 1983-01-21 | 1983-01-21 | Communication device alarm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983005973U JPS59113884U (en) | 1983-01-21 | 1983-01-21 | Communication device alarm circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59113884U true JPS59113884U (en) | 1984-08-01 |
Family
ID=30137538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983005973U Pending JPS59113884U (en) | 1983-01-21 | 1983-01-21 | Communication device alarm circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59113884U (en) |
-
1983
- 1983-01-21 JP JP1983005973U patent/JPS59113884U/en active Pending
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