CN201839339U - Improved SDH (synchronous digital hierarchy) optical transmission system official telephone module - Google Patents
Improved SDH (synchronous digital hierarchy) optical transmission system official telephone module Download PDFInfo
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- CN201839339U CN201839339U CN2010202042078U CN201020204207U CN201839339U CN 201839339 U CN201839339 U CN 201839339U CN 2010202042078 U CN2010202042078 U CN 2010202042078U CN 201020204207 U CN201020204207 U CN 201020204207U CN 201839339 U CN201839339 U CN 201839339U
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- official telephone
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Abstract
The utility model discloses an improved SDH (synchronous digital hierarchy) optical transmission system official telephone module comprising a signal tone generator, a user interface circuit, a selector, a DTMF (dual-tone multifrequency) signal receiver, a voice codec, an official telephone data processing module, and a single chip microcomputer processing module, wherein the signal tone generator is used for generating a telephone signal tone; the user interface circuit is used for feed, ring stream feed, two/four line conversion, off-hook and on-hook detection of a telephone; the selector is used for selecting between the signal tone and an official telephone voice; the DTMF signal receiver is used for receiving a DTMF signal and judging a dialing number from a local end or a remote end; the voice codec is used for digital-to-analogue conversion; the official telephone data processing module is used for processing official telephone data; the single chip microcomputer processing module is used for wholly controlling the official telephone module and communicating with an SDH optical transmission system main processor; and when the official telephone is used, signal tones such as dialing tone, busy tone, howler tone, ring-back tone and the like can be generated like a common telephone, and when a fault exists, the situation that whether the official telephone module or the system has faults is easy to judge according to different promoting tones.
Description
Technical field
The utility model relates to a kind of official telephone module of SDH optical transmission.
Background technology
The official telephone module of SDH optical transmission is simulated ring with buzzer for general, and is not had dialing tone, busy tone, and howler tone, signal tones such as ring-back tone, information is abundant, does not meet the ordinary telephone subscriber use habit.And when running into fault, very difficult judgement is the official telephone module failure or the system failure, and is difficult in maintenance.
The utility model content
Technical problem to be solved in the utility model provides the improved SDH optical transmission official telephone module that a kind ofly meets the ordinary telephone subscriber use habit, abundant information can be provided.
For solving the problems of the technologies described above, the technical solution of the utility model is: improved SDH optical transmission official telephone module comprises: the tone generator that produces the telephony interface signal tone; Feed, feedback ringing-current, two/four lines that are used for phone are changed, the user interface circuit of dislodging machine testing; Be used for the selector between signal tone and official telephone voice, selected; Be used to receive dtmf signal and adjudicate local terminal or dtmf signal receiver that far-end is dialled the number; The audio coder ﹠ decoder (codec) that is used for signal tone or the digital-to-analogue conversion of official telephone voice; The official telephone data processing module that is used for the official telephone data processing; Also comprise the single chip processing module that described official telephone module is carried out overall situation control and communicated by letter with the SDH optical transmission primary processor.
As a kind of optimized technical scheme, described tone generator comprises sine-wave generator and relay.
As a kind of optimized technical scheme, described official telephone data processing module provides clock signal and timing signal for described audio coder ﹠ decoder (codec).
Owing to adopted technique scheme, improved SDH optical transmission official telephone module comprises: the tone generator that produces the telephony interface signal tone; Feed, feedback ringing-current, two/four lines that are used for phone are changed, the user interface circuit of dislodging machine testing; Be used for the selector between signal tone and official telephone voice, selected; Be used to receive dtmf signal and adjudicate local terminal or dtmf signal receiver that far-end is dialled the number; The audio coder ﹠ decoder (codec) that is used for signal tone or the digital-to-analogue conversion of official telephone voice; The official telephone data processing module that is used for the official telephone data processing; Also comprise the single chip processing module that described official telephone module is carried out overall situation control and communicated by letter with the SDH optical transmission primary processor; When using official telephone, also can produce signal tones such as dialing tone, busy tone, howler tone, ring-back tone, when running into fault,, can judge the official telephone module failure or the system failure at an easy rate according to the difference of prompt tone as plain old telephone.
Description of drawings
Fig. 1 is the structured flowchart of the utility model embodiment;
Fig. 2 is the utility model embodiment user mode schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1, improved SDH optical transmission official telephone module, this utility model mainly comprises tone generator, user interface circuit, selector, dtmf signal receiver, audio coder ﹠ decoder (codec), official telephone data processing module, parts such as single chip processing module.Described tone generator, comprise sine-wave generator and relay, under the control of single chip control module, break-make by relay, produce telephony interface signal tone commonly used, as dialing tone, busy tone, howler tone, ring-back tone etc., user interface circuit is used for the feed of phone, the feedback ringing-current, the conversion of two/four lines, dislodging machine testing, selector is used for selecting between signal tone and official telephone voice, the dtmf signal receiver is used to receive dtmf signal, and judgement local terminal or far-end are dialed the number, and audio coder ﹠ decoder (codec) is used for the digital-to-analogue conversion of signal tone or official telephone voice, the official telephone data processing module is used for the processing of official telephone data, the buffer memory that comprises data, the distribution of data, and required clock of audio coder ﹠ decoder (codec) and timing signal are provided, single chip processing module is responsible for overall situation control of the present utility model, and follows the primary processor communication of SDH optical transmission.
The utility model improves the official telephone of traditional SDH optical transmission, makes official telephone finishing on the basis of its all functions, meets the use habit of ordinary telephone subscriber fully.During the official telephone off-hook, receiver can be heard dialing tone, then can not hear howler tone if surpassing dials in the setting-up time, after the dialing, far-end can be heard with the identical ring of plain old telephone, the local terminal receiver can be heard ring-back tone simultaneously, if far-end hurries or dials a wrong number, the local terminal receiver can be heard busy tone, does not answer if far-end surpasses setting-up time, or far-end on-hook behind the end of conversation, local terminal can be heard howler tone.
As depicted in figs. 1 and 2, particularly, tone generator produces telephony interface signal tone commonly used, as dialing tone (450 ± 25Hz sine wave), busy tone (450 ± 25Hz sine wave, logical 0.35 second, disconnected 0.35 second), howler tone (900Hz sine wave, logical 0.7 second, disconnected 0.7 second), ring-back tone (450 ± 25Hz sine wave, logical 1 second, disconnected 4 seconds) etc.User interface circuit is used for to the providing-the 48V feed of phone, and send ringing-current to phone under single chip control module control, finishes the conversion of two/four lines, finishes the dislodging machine testing and notifies single chip control module.Selector finish under the control of single chip control module signal tone and official telephone voice between select.The dtmf signal receiver is used to receive dtmf signal, and judgement local terminal or far-end are dialed the number, and produces interruption, and the notice single chip control module reads number information.Audio coder ﹠ decoder (codec) is used for the digital-to-analogue conversion of signal tone or official telephone voice, the signal tone that voice signal that Subscriber Interface Module SIM is sent here or tone generator are sent here becomes digital signal and delivers to the official telephone data processing module, or will become analog signal from the reduction of data of official telephone data processing module, deliver to user interface circuit.
Single chip processing module is responsible for overall situation control of the present utility model, different operating state and working stage according to official telephone, the break-make of the relay of control signal tone generator, produce different signal tones, control selector A the gating of B, read the number information that the dtmf signal receiver is accepted, and with the primary processor communication of SDH optical transmission, primary processor and the network management system of notifying SDH optical transmission in real time with the operating state and the warning information of official telephone module, and accept and carry out the instruction that the SDH optical transmission primary processor is sent here.
The official telephone data processing module is used for the processing of official telephone data, comprises the buffer memory of data, the distribution of data, and required clock of audio coder ﹠ decoder (codec) and timing signal are provided, and the interface signal of official telephone module and optical link processing module.The official telephone module will judge at first whether each light direction is effective, if light direction is invalid, then making the reception data on this light direction by inner selector is high level, and, because from the data on each light direction and from the data of audio coder ﹠ decoder (codec) is nonsynchronous mutually, also the data on all directions to be handled, make they and clock separately and timing signal synchronously.The processing procedure of official telephone is such: on the sending direction of official telephone data, official telephone from audio coder ﹠ decoder (codec) sends data, follow from after the merging of the reception of the official telephone on the light direction beyond any one light direction data, deliver to the transmitter side of this light direction.Official telephone data receiver at audio coder ﹠ decoder (codec) makes progress, and through after merging, delivers to the receiver side of audio coder ﹠ decoder (codec) from the official telephone data on all light directions.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
All are from design of the present utility model, and the reconfiguration of having done without creative work all drops within the protection range of the present utility model.
Claims (3)
1. improved SDH optical transmission official telephone module is characterized in that, comprising: the tone generator that produces the telephony interface signal tone; Feed, feedback ringing-current, two/four lines that are used for phone are changed, the user interface circuit of dislodging machine testing; Be used for the selector between signal tone and official telephone voice, selected; Be used to receive dtmf signal and adjudicate local terminal or dtmf signal receiver that far-end is dialled the number; The audio coder ﹠ decoder (codec) that is used for signal tone or the digital-to-analogue conversion of official telephone voice; The official telephone data processing module that is used for the official telephone data processing; Also comprise the single chip processing module that described official telephone module is carried out overall situation control and communicated by letter with the SDH optical transmission primary processor.
2. improved SDH optical transmission official telephone module as claimed in claim 1, it is characterized in that: described tone generator comprises sine-wave generator and relay.
3. improved SDH optical transmission official telephone module as claimed in claim 1, it is characterized in that: described official telephone data processing module provides clock signal and timing signal for described audio coder ﹠ decoder (codec).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202042078U CN201839339U (en) | 2010-05-19 | 2010-05-19 | Improved SDH (synchronous digital hierarchy) optical transmission system official telephone module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202042078U CN201839339U (en) | 2010-05-19 | 2010-05-19 | Improved SDH (synchronous digital hierarchy) optical transmission system official telephone module |
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| Publication Number | Publication Date |
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| CN201839339U true CN201839339U (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202042078U Expired - Fee Related CN201839339U (en) | 2010-05-19 | 2010-05-19 | Improved SDH (synchronous digital hierarchy) optical transmission system official telephone module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354574A (en) * | 2013-07-09 | 2013-10-16 | 中国电子科技集团公司第三十四研究所 | Talk-back embedding board card used for SDH |
| CN105611083A (en) * | 2015-12-24 | 2016-05-25 | 瑞斯康达科技发展股份有限公司 | Method, device and system for realizing communication |
| CN107959897A (en) * | 2017-12-12 | 2018-04-24 | 太仓鼎诚电子科技有限公司 | Off host with dial feature amplifies intercommunication telephone communication system |
-
2010
- 2010-05-19 CN CN2010202042078U patent/CN201839339U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354574A (en) * | 2013-07-09 | 2013-10-16 | 中国电子科技集团公司第三十四研究所 | Talk-back embedding board card used for SDH |
| CN105611083A (en) * | 2015-12-24 | 2016-05-25 | 瑞斯康达科技发展股份有限公司 | Method, device and system for realizing communication |
| CN105611083B (en) * | 2015-12-24 | 2019-01-22 | 瑞斯康达科技发展股份有限公司 | A kind of methods, devices and systems for realizing call |
| CN107959897A (en) * | 2017-12-12 | 2018-04-24 | 太仓鼎诚电子科技有限公司 | Off host with dial feature amplifies intercommunication telephone communication system |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20110518 Termination date: 20130519 |