JPH0461940U - - Google Patents
Info
- Publication number
- JPH0461940U JPH0461940U JP1990104613U JP10461390U JPH0461940U JP H0461940 U JPH0461940 U JP H0461940U JP 1990104613 U JP1990104613 U JP 1990104613U JP 10461390 U JP10461390 U JP 10461390U JP H0461940 U JPH0461940 U JP H0461940U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- pilot signal
- case
- relay
- circuit
- 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
- 230000002265 prevention Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Transceivers (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は従来の筺体分離型通信装置の誤接続防止
回路の一例を示すブロツク図である。
１，４……制御筺体、２，５……送受信筺体、
３，６……同軸線、１１，２１，４１，５１……
合成分離回路、１２，４３……電源スイツチ、１
３，４２……電源回路、１４，２２……継電器、
１５……パイロツト信号検知回路、１６，４５…
…発光ダイオード、１７，２４……テレメータ回
路、２３……パイロツト信号発生回路。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram showing an example of an erroneous connection prevention circuit of a conventional case-separated type communication device. 1, 4...control case, 2,5...transmission/reception case,
3, 6... Coaxial line, 11, 21, 41, 51...
Synthesis/separation circuit, 12, 43...Power switch, 1
3, 42...power supply circuit, 14,22...relay,
15... Pilot signal detection circuit, 16, 45...
...Light emitting diode, 17, 24...Telemeter circuit, 23...Pilot signal generation circuit.
Claims (1)
へ同軸線を介して電源を供給する筺体分離型通信
装置の誤接続防止回路において、前記一方の筺体
は、電圧制御信号に応じて変化する第１の電圧お
よびこの第１の電圧よりも低い電圧の第２の電圧
をそれぞれ出力する電源回路と、前記第１および
第２の電圧の内いずれか一方を切替えて出力する
スイツチと、前記第１の電圧で動作し前記第２の
電圧で動作しない第１の継電器と、前記他方の筺
体から前記同軸線を介して送出されてきたパイロ
ツト信号を前記第１の継電器を介して受信し信号
レベルを検知して前記電圧制御信号を生成するパ
イロツト信号検知回路とを備え；前記他方の筺体
は、前記第１の電圧で動作し前記第２の電圧で動
作しない第２の継電器と、前記第２の継電器を介
して前記第２の電圧を受けて前記パイロツト信号
を発生するパイロツト信号発生回路とを備えたこ
とを特徴とする筺体分離型通信装置の誤接続防止
回路。 ２ 前記パイロツト信号検知回路は、前記パイロ
ツト信号を検知したときにこれを通報する手段を
具備したことを特徴とする請求項１記載の筺体分
離型通信装置の誤接続防止回路。[Claims for Utility Model Registration] 1. In a misconnection prevention circuit for a case-separated type communication device that supplies power from one case separated from the other to the other case via a coaxial line, the one case has voltage control. a power supply circuit that outputs a first voltage that changes according to a signal and a second voltage that is lower than the first voltage; and a power supply circuit that switches and outputs either one of the first and second voltages. a first relay that operates at the first voltage and does not operate at the second voltage, and a pilot signal sent from the other housing via the coaxial line to the first relay. a pilot signal detection circuit that detects a signal level received through the voltage control signal and generates the voltage control signal; What is claimed is: 1. An erroneous connection prevention circuit for a separate housing type communication device, comprising: a relay; and a pilot signal generation circuit that receives the second voltage via the second relay and generates the pilot signal. 2. The erroneous connection prevention circuit for a case-separated type communication device according to claim 1, wherein the pilot signal detection circuit includes means for notifying the pilot signal when it is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990104613U JPH0461940U (en) | 1990-10-04 | 1990-10-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990104613U JPH0461940U (en) | 1990-10-04 | 1990-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0461940U true JPH0461940U (en) | 1992-05-27 |
Family
ID=31849959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990104613U Pending JPH0461940U (en) | 1990-10-04 | 1990-10-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0461940U (en) |
-
1990
- 1990-10-04 JP JP1990104613U patent/JPH0461940U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2001035429A8 (en) | Electric part, and emergency stop system and communication device having the same | |
| JPH0461940U (en) | ||
| JPH0993674A (en) | Terminal equipment for controlling remote monitor control system | |
| JPH0668367A (en) | Forgetfulness prevention unit | |
| JPH0328629Y2 (en) | ||
| JPS6138295Y2 (en) | ||
| JP2926924B2 (en) | Sanitary washing equipment | |
| JPS5850653Y2 (en) | Pilot signal detection circuit | |
| JPS6347996Y2 (en) | ||
| JPH029428Y2 (en) | ||
| JPS632958Y2 (en) | ||
| JPS642495A (en) | Operation confirmation system for master remote controller of radio equipment control system | |
| JPS5742244A (en) | Optical transmission system | |
| JPH0241537U (en) | ||
| EP0788760A3 (en) | Switch-on device for a vacuum cleaner | |
| JPH08263751A (en) | Standing emergency signal lamp | |
| JPS6217562A (en) | Signal transmitting and receiving device for air conditioner | |
| JPS63176284U (en) | ||
| JPH04127665U (en) | Photo interrupter connector | |
| JPS57208741A (en) | Alarm control circuit | |
| JP2000302043A (en) | Switch control device | |
| JPH0275835U (en) | ||
| JPH02222353A (en) | Malfunction preventing circuit | |
| JPS6141332U (en) | Distribution line connection equipment | |
| JPH02667U (en) |