CN201243280Y - Automatic switchover protection device for telephone two-channel - Google Patents
Automatic switchover protection device for telephone two-channel Download PDFInfo
- Publication number
- CN201243280Y CN201243280Y CNU2008201878367U CN200820187836U CN201243280Y CN 201243280 Y CN201243280 Y CN 201243280Y CN U2008201878367 U CNU2008201878367 U CN U2008201878367U CN 200820187836 U CN200820187836 U CN 200820187836U CN 201243280 Y CN201243280 Y CN 201243280Y
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- interface circuit
- film
- circuit integrated
- integrated thick
- thick film
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Abstract
The utility model relates to an automatic protection device, in particular to a telephone dual-channel automatic switch and protection device for power dispatching, which is provided with a shell; and the automatic switch and protection device is characterized in that: a CPU microprocessor, a first integrated thick film interface circuit, a second integrated thick film interface circuit, a local integrated thick film interface circuit, an integrated signaling tone detecting thick film circuit and an electronic switch are arranged in the shell; a telephone line input interface, a telephone line output interface, a manual operation switch and a power supply interface are arranged on the shell; the CPU microprocessor in the automatic safety device is connected with the electronic switch, the first integrated thick film interface circuit, the second integrated thick film interface circuit and the integrated signaling tone detecting thick film circuit through the digital lines; the electronic switch is connected with the first integrated thick film interface circuit, the second integrated thick film interface circuit, the local integrated thick film interface circuit and the integrated signaling tone detecting thick film circuit; the first integrated thick film interface circuit and the second integrated thick film interface circuit are connected with the telephone line input interface; and the local integrated thick film interface circuit is connected with the telephone line output interface. The automatic protection device suffices the requirements of high quality and high reliability for communication of dispatching telephone.
Description
Technical field:
The utility model relates to the automatic switching protection device, particularly a kind of phone binary channels automatic switching protection device that is applicable to power scheduling.
Background technology:
As everyone knows; power dispatching telephone adopts the transmission channel of two kinds of different routes and different transmission meanss usually; to constitute the protection of 1+1; but because the switching mode employing is artificial line transfer mode; and there is not a passage on-line monitoring; again because different transmission channel time delays are inequality; when a kind of transmission means fault is interrupted; manual switching needs two ends (exchange side and user side) line transfer simultaneously; therefore dispatching telephone is longer break period in handoff procedure, is having a strong impact on safety, the stable operation of electrical network.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, the phone binary channels automatic switching protection device that provides a kind of power scheduling to switch with on-line monitoring with two transmission channel performances and not damaged.
The utility model can reach by following measure:
A kind of phone binary channels automatic switching protection device; be provided with housing; it is characterized in that being provided with in the housing CPU microprocessor, the first interface circuit integrated thick-film, the second interface circuit integrated thick-film, local interface circuit integrated thick-film, signal tone testing circuit integrated thick-film and electronic switch, housing is provided with telephone wire input interface, telephone wire output interface, manually switch and power interface is set.
The CPU microprocessor links to each other with electronic switch, the first interface circuit integrated thick-film, the second interface circuit integrated thick-film and signal tone testing circuit integrated thick-film respectively through data wire in the utility model, electronic switch links to each other with the first interface circuit integrated thick-film, the second interface circuit integrated thick-film, local interface circuit integrated thick-film and signal tone testing circuit integrated thick-film, the first interface circuit integrated thick-film, the second interface circuit integrated thick-film are connected with the telephone wire input interface, and local interface circuit integrated thick-film links to each other with the telephone wire output interface.
The utility model can be provided with power down bypass relay, and power down bypass relay is connected the telephone wire input interface respectively with the telephone wire output interface, guarantees that phone is unimpeded under this device dead electricity situation.
The utility model can be provided with on housing switch manually is set, can be artificially or select the operation transmission channel by force.
The utility model can adopt the 48V power module to carry out transformation, and is identical with communication equipment standard operation voltage, and power taking is simple and convenient, stable and reliable operation.
During operate as normal, the operating state of the continuous scan round first interface circuit integrated thick-film of CPU microprocessor, the second interface circuit integrated thick-film and local interface circuit integrated thick-film.
When the phone incoming call, the CPU microprocessor scans the ring output signal of the first interface circuit integrated thick-film, the second interface circuit integrated thick-film, if the two-way telephony interface all can detect ringing-current, illustrate that the two-way incoming line is all normal, then the CPU microprocessor is preferentially received first via line interface on the phone; If have only one the road to detect ringing-current, then CPU microprocessor control electronic switch is connected to local phone interface with this line interface, simultaneously alarm.
During exhalation, after receiver off-book, CPU microprocessor detect the off hook signal of local interface circuit integrated thick-film output, at first be connected to the first interface circuit integrated thick-film, the dialing tone that reads the signal tone testing circuit simultaneously detects output, if normal, then keeps this connection until end of conversation; If undesired, then switch to the second interface circuit integrated thick-film, if normally then keep to connect.
In addition, be equipped with manual switchover and power down automatic transfer switch, assurance can manual switching be arrived arbitrary circuit, even can guarantee also under the powering-off state that phone is connected to the first via.
The utlity model has advantages such as two transmission channel performances, on-line monitoring and not damaged switching, satisfied beat telephone communication high-quality, highly reliable requirement.
Description of drawings:
Accompanying drawing is a structured flowchart of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
As shown in drawings; a kind of phone binary channels automatic switching protection device; be provided with housing; it is characterized in that being provided with in the housing CPU microprocessor 1, the first interface circuit integrated thick-film 2, the second interface circuit integrated thick-film 3, local interface circuit integrated thick-film 4, signal tone testing circuit integrated thick-film 5 and electronic switch 6, housing is provided with telephone wire input interface, telephone wire output interface, manually switch and power interface is set.
The utility model can be provided with power down bypass relay 7, and power down bypass relay 7 is connected the telephone wire input interface respectively with the telephone wire output interface, guarantees that phone is unimpeded under this device dead electricity situation.
The utility model can be provided with on housing switch 8 manually is set, can be artificially or select the operation transmission channel by force.
The utility model can adopt 48V power module 9 to carry out transformation, and is identical with communication equipment standard operation voltage, and power taking is simple and convenient, stable and reliable operation.
During the utility model operate as normal, the continuous scan round first interface circuit integrated thick-film of CPU microprocessor, the operating state of the second interface circuit integrated thick-film and local interface circuit integrated thick-film, when the phone incoming call, the CPU microprocessor 1 scanning first interface circuit integrated thick-film 2, the ring output signal of the second interface circuit integrated thick-film 3, if the two-way telephony interface all can detect ringing-current, illustrate that the two-way incoming line is all normal, then CPU microprocessor 1 is received first via line interface on the phone, if have only one the road to detect ringing-current, then CPU microprocessor 1 control electronic switch 6 is connected to local phone interface with these road voice, alarm simultaneously; During exhalation, receiver off-book, after CPU microprocessor 1 detects the off hook signal of local interface circuit integrated thick-film 4 outputs, at first be connected to the first interface circuit integrated thick-film 2, the dialing tone sound that reads the signal tone testing circuit simultaneously detects output, if normal, then keep this connection until end of conversation; If undesired, then switch to the second interface circuit integrated thick-film 3, if normally then keep to connect, in addition, be equipped with manual switchover and power down automatic transfer switch 8, assurance can manual switching be arrived arbitrary circuit, even can guarantee also under the powering-off state that phone is connected to the first via.
Claims (5)
1, a kind of phone binary channels automatic switching protection device; be provided with housing; it is characterized in that being provided with in the housing CPU microprocessor, the first interface circuit integrated thick-film, the second interface circuit integrated thick-film, local interface circuit integrated thick-film, signal tone testing circuit integrated thick-film and electronic switch, housing is provided with telephone wire input interface, telephone wire output interface, manually switch and power interface is set.
2; a kind of phone binary channels automatic switching protection device according to claim 1; it is characterized in that the CPU microprocessor through data wire respectively with electronic switch; the first interface circuit integrated thick-film; the second interface circuit integrated thick-film links to each other with signal tone testing circuit integrated thick-film; the electronic switch and the first interface circuit integrated thick-film; the second interface circuit integrated thick-film; local interface circuit integrated thick-film links to each other with signal tone testing circuit integrated thick-film; the first interface circuit integrated thick-film; the second interface circuit integrated thick-film links to each other with the telephone wire input interface, and local interface circuit integrated thick-film links to each other with the telephone wire output interface.
3, a kind of phone binary channels automatic switching protection device according to claim 1 is characterized in that being provided with power down bypass relay, and power down bypass relay is connected the telephone wire input interface respectively with output interface.
4, a kind of phone binary channels automatic switching protection device according to claim 1 is characterized in that housing is provided with switch manually is set.
5, a kind of phone binary channels automatic switching protection device according to claim 1 is characterized in that adopting the 48V power module to carry out the transformation power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201878367U CN201243280Y (en) | 2008-08-15 | 2008-08-15 | Automatic switchover protection device for telephone two-channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201878367U CN201243280Y (en) | 2008-08-15 | 2008-08-15 | Automatic switchover protection device for telephone two-channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201243280Y true CN201243280Y (en) | 2009-05-20 |
Family
ID=40716573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201878367U Expired - Fee Related CN201243280Y (en) | 2008-08-15 | 2008-08-15 | Automatic switchover protection device for telephone two-channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201243280Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613147A (en) * | 2017-09-26 | 2018-01-19 | 北京荣达千里科技有限公司 | A kind of special telephone line device for intelligently switching, test system and method for testing |
-
2008
- 2008-08-15 CN CNU2008201878367U patent/CN201243280Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613147A (en) * | 2017-09-26 | 2018-01-19 | 北京荣达千里科技有限公司 | A kind of special telephone line device for intelligently switching, test system and method for testing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20100815 |