CN202257844U - Alarming box for telecom machine room - Google Patents
Alarming box for telecom machine room Download PDFInfo
- Publication number
- CN202257844U CN202257844U CN2011203747653U CN201120374765U CN202257844U CN 202257844 U CN202257844 U CN 202257844U CN 2011203747653 U CN2011203747653 U CN 2011203747653U CN 201120374765 U CN201120374765 U CN 201120374765U CN 202257844 U CN202257844 U CN 202257844U
- Authority
- CN
- China
- Prior art keywords
- photo
- coupler
- input end
- signal input
- electric signal
- 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 - Fee Related
Links
Images
Landscapes
- Alarm Systems (AREA)
Abstract
The utility model relates to an alarming box for a telecom machine room, which comprises a diode D1, a resistor R1, a diode D2, a capacitor C1, a photo-coupler and a resistor R2, wherein the negative pole end of the diode D1 is connected with the positive pole driving electric signal input end of the photo-coupler through the resistor R1, the negative pole driving electric signal input end of the photo-coupler is connected with a first power supply, the positive pole end of the diode D2 is connected with the negative pole driving electric signal input end of the photo-coupler, and the negative pole end of the diode D2 is connected with the positive pole driving electric signal input end of the photo-coupler. The capacitor C1 is in parallel connection between the positive pole driving electric signal input end and the negative pole driving electric signal input end of the photo-coupler, the positive pole signal output end of the photo-coupler is connected with a second power supply through the resistor R2, and the negative pole signal output end of the photo-coupler is connected with the ground. Compared with the prior art, the alarming box for the telecom machine room has the advantages that when high voltage is led in, the alarming box cannot be burnt out, interior normal working state of the alarming box cannot be affected, the alarming box can normally receive and transmit alarming signals and the like.
Description
Technical field
The utility model relates to field of telecommunications, especially relates to a kind of telecommunications room with the alarm box.
Background technology
Alarm box (telecommunications room uses) effect: colleting alarming signals and uploading.The alarm box can be installed in the measuring chamber at telephone office station, also can be installed in far-end POP point machine room (Attended mode or unmanned) or the radio communication base station.In this machine room, each major equipment all can provide alarm signal (level variation) when breaking down.The alarm signal of each equipment all is connected to the alarm box through signal link.After the alarm box is gathered alarm signal; After information such as the title of record trouble equipment, fault type, fault generation/elimination time are gathered; Upwards send with coded format, show (pilot lamp on the alarm box) simultaneously in this locality, this locality can also be connected to the alarm Display Light Box.Alarm signal gathers with this mode step by step, until central machine room or maintenance centre.Central machine room or maintenance centre can see in real time whether each equipment breaks down.Though can only this simple information of non-fault be arranged display device, can be implemented in same system the inside and see whether various dissimilar equipment have fault, relatively more directly perceived.In this machine room of alarm box employing-48V direct current supply (one end-48V voltage, other end ground connection 0V).
Traditional alarm box following problem that has problems: under the normal condition, the alarm signal that equipment failure is sent is a low-voltage dc signal.If occur on the line of alarm signal that 220V exchanges or more during high voltage, can cause alarming box and burnt out.After alarm box self burns out, can not upload alarm signal again.Both had not known to alarm box itself and had damaged in central machine room or maintenance centre, can't normally receive other equipment through the alarm signal that the alarm box transmits yet, and can cause serious consequence.
Along with far-end POP point machine room increases, its installation site maybe be in the open air or unserviced place.Under existing public security environment, the cable burglary takes place and can't avoid fully.If outdoor earthing cable is stolen or cut off; Enter into distributing frame and there is this moment high-tension electricity to pass through subscribers feeder (thunderbolt, extraneous high-tension bus-bar are run into the overground cable breakage, the users home telephone wire is run into situation such as 220V); This high-voltage large current causes the distributing frame alarm; But because earthing cable is stolen, high pressure can't be derived, and high pressure enters into the alarm box and burns out the alarm box.
The utility model content
The purpose of the utility model be exactly provide in order to overcome the defective that above-mentioned prior art exists a kind of can be when having high pressure to get into; Can not burn out the alarm box yet; Do not influence the inner normal operating conditions of alarm box, can normally receive and the telecommunications room of transmitting warning signal with the alarm box.
The purpose of the utility model can realize through following technical scheme: a kind of telecommunications room is with the alarm box; Be connected with distributing frame; It is characterized in that; Comprise diode D1, resistance R 1, diode D2, capacitor C 1, photo-coupler, resistance R 2, first power supply and second source; The negative pole end of described diode D1 drives electric signal input end through resistance R 1 with the positive pole of photo-coupler and is connected, and the negative pole of photo-coupler drives electric signal input end and is connected with first power supply, and the positive terminal of described diode D2 connects negative pole and drives electric signal input end; The negative pole end of diode D2 connects the anodal electric signal input end that drives; The positive pole that described capacitor C 1 is connected in parallel on photo-coupler drives between electric signal input end and the negative pole driving electric signal input end, and the positive signal output terminal of described photo-coupler is connected the negative signal output head grounding of photo-coupler through resistance R 2 with second source.
The resistance of described resistance R 1 is 18～25 kilohms.
Described alarm box also comprises thermistor, and an end of this thermistor connects first power supply, and the other end of thermistor connects distributing frame.
Compared with prior art, the utlity model has following advantage:
1, alarm box input end increases a big resistance R 1, has strengthened the alarm importation and has exchanged invasive ability with the isolation performance of alarming between the box internal circuit with resisting.Through internal circuit and program adjustment,, can not influence other normal alarm signals of reception though input end increases resistance.Even there is high pressure to get into, can not burn out the alarm box, do not influence the inner normal operating conditions of alarm box yet, can normally receive and the transmitting warning signal.
2, increase PTC element (thermistor).PTC is in conducting state at ordinary times.When high-voltage large current, PTC work is in the high resistant off-state.Promptly be equivalent to alarm box with this high-voltage large current also as a kind of alarm signal, can gather and upload alarm signal.Central machine room or maintenance centre receive this alarm signal, just know the high voltage invasion has taken place, and can take measures areput.
Description of drawings
Fig. 1 is the circuit diagram of the utility model;
Fig. 2 is the utility model and distributing frame CC synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
A kind of telecommunications room is connected with distributing frame with the alarm box, comprises diode D1, resistance R 1, diode D2, capacitor C 1, photo-coupler, resistance R 2, first power supply and second source.The negative pole end of diode D1 drives electric signal input end through resistance R 1 with the positive pole of photo-coupler 1 and is connected, and the negative pole of photo-coupler 1 drives electric signal input end and is connected with first power supply; The positive terminal of diode D2 connects negative pole and drives electric signal input end, and the negative pole end of diode D2 connects the anodal electric signal input end that drives.The positive pole that capacitor C 1 is connected in parallel on photo-coupler drives between electric signal input end and the negative pole driving electric signal input end.The positive signal output terminal of photo-coupler 1 is connected the negative signal output head grounding of photo-coupler through resistance R 2 with second source.The resistance of resistance R 1 is 18～25 kilohms, preferred 20 kilohms of present embodiment.The capacitance of capacitor C 1 is 0.1 μ.The resistance of resistance R 2 is 10 kilohms.The alarm box also comprises thermistor, and an end of this thermistor connects first power supply, and the other end of thermistor connects distributing frame.
Alarm box input end increases a big resistance R 1, has strengthened the alarm importation and has exchanged invasive ability with the isolation performance of alarming between the box internal circuit with resisting.Through internal circuit and program adjustment,, can not influence other normal alarm signals of reception though input end increases resistance.Even there is high pressure to get into, can not burn out the alarm box, do not influence the inner normal operating conditions of alarm box yet, can normally receive and the transmitting warning signal.
Increase PTC element (thermistor).PTC is in conducting state at ordinary times.When high-voltage large current, PTC work is in the high resistant off-state.Promptly be equivalent to alarm box with this high-voltage large current also as a kind of alarm signal, can gather and upload alarm signal.Central machine room or maintenance centre receive this alarm signal, just know the high voltage invasion has taken place, and can take measures areput.
Claims (3)
1. a telecommunications room is with the alarm box; Be connected with distributing frame; It is characterized in that, comprise diode D1, resistance R 1, diode D2, capacitor C 1, photo-coupler, resistance R 2, first power supply and second source, the negative pole end of described diode D1 drives electric signal input end through resistance R 1 with the positive pole of photo-coupler and is connected; The negative pole of photo-coupler drives electric signal input end and is connected with first power supply; The positive terminal of described diode D2 connects negative pole driving electric signal input end, and the negative pole end of diode D2 connects the anodal electric signal input end that drives, and the positive pole that described capacitor C 1 is connected in parallel on photo-coupler drives between electric signal input end and the negative pole driving electric signal input end; The positive signal output terminal of described photo-coupler is connected the negative signal output head grounding of photo-coupler through resistance R 2 with second source.
2. a kind of telecommunications room according to claim 1 is characterized in that with the alarm box resistance of described resistance R 1 is 18～25 kilohms.
3. a kind of telecommunications room according to claim 1 is characterized in that with the alarm box described alarm box also comprises thermistor, and an end of this thermistor connects first power supply, and the other end of thermistor connects distributing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203747653U CN202257844U (en) | 2011-09-28 | 2011-09-28 | Alarming box for telecom machine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203747653U CN202257844U (en) | 2011-09-28 | 2011-09-28 | Alarming box for telecom machine room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202257844U true CN202257844U (en) | 2012-05-30 |
Family
ID=46119054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203747653U Expired - Fee Related CN202257844U (en) | 2011-09-28 | 2011-09-28 | Alarming box for telecom machine room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202257844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752941A (en) * | 2012-07-12 | 2012-10-24 | 江苏怡和科技股份有限公司 | State detection circuit for gas burst flashing lamp |
-
2011
- 2011-09-28 CN CN2011203747653U patent/CN202257844U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752941A (en) * | 2012-07-12 | 2012-10-24 | 江苏怡和科技股份有限公司 | State detection circuit for gas burst flashing lamp |
| CN102752941B (en) * | 2012-07-12 | 2015-04-15 | 苏州金螳螂怡和科技股份有限公司 | State detection circuit for gas burst flashing lamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107492955B (en) | Family safety power distribution system and distribution box | |
| CN203824654U (en) | Cable joint on-line monitoring system | |
| CN104362755A (en) | High-voltage cabinet busbar joint temperature and current monitoring and protecting system | |
| CN204270462U (en) | A kind of community intelligent security guard internet alarm system | |
| CN202257844U (en) | Alarming box for telecom machine room | |
| CN104330704A (en) | Transmission and distribution power grid fault positioning system | |
| CN203850830U (en) | Intelligent anti-thunder case | |
| CN103278733B (en) | A kind of cable grounding remote monitoring method and Long-Range Surveillance System | |
| CN205015412U (en) | System is studied and judged to trouble of distribution network | |
| CN204269750U (en) | Diode open-circuit testing circuit | |
| CN101344543A (en) | Miniature multipath electric fire disaster monitoring alarm | |
| CN203086245U (en) | Plug-and-play type movable combiner box monitoring device | |
| CN203231469U (en) | Cabinet air conditioner having communication interface lightning protection function | |
| CN202888715U (en) | Switch-cabinet control unit and switch cabinet | |
| CN205666497U (en) | Block terminal is synthesized to intelligent electric wire netting | |
| CN204154852U (en) | Transmission and distribution network fault location system | |
| CN202084132U (en) | Electrical fire monitoring system | |
| CN204615349U (en) | Remote signalling alarm device when a kind of integrated form Surge Protector Indication of Losing Efficacy and inefficacy | |
| CN202770951U (en) | Remote signal acquisition circuit with direct current grounding automatic line selection function | |
| CN203231468U (en) | Cabinet air conditioner having direct-current reverse connection resisting and alternating-current voltage offset detecting functions | |
| CN208126649U (en) | road traffic signal control system | |
| CN202957660U (en) | Passive wireless transmission system | |
| CN202172264U (en) | Zero line monitoring device | |
| CN205791801U (en) | DC power line long-distance transmissions communication system | |
| CN213579151U (en) | Infrared monitoring device for switching-on position of transformer substation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170928 |