CN202998132U - Routing device used for PCM device test - Google Patents
Routing device used for PCM device test Download PDFInfo
- Publication number
- CN202998132U CN202998132U CN 201220684363 CN201220684363U CN202998132U CN 202998132 U CN202998132 U CN 202998132U CN 201220684363 CN201220684363 CN 201220684363 CN 201220684363 U CN201220684363 U CN 201220684363U CN 202998132 U CN202998132 U CN 202998132U
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- China
- Prior art keywords
- test
- pcm
- routing
- interface
- control module
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- Expired - Fee Related
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Abstract
The utility model relates to a test device used for a communication device, especially relates to a routing device used for a PCM device test. The routing device used for the PCM device test is characterized by comprising a routing controller, a DSP logic control module, a relay change over switch circuit and an interface circuit, wherein the DSP logic control module is connected with the routing controller and the relay change over switch circuit separately, the relay change over switch circuit is also connected with a program control switchboard, a test interface and the interface circuit separately, and the interface circuit accepts an external PCM device signal. The routing device used for the PCM device test enables the test efficiency of a PCM device to be improved and the manual operation intensity to be reduced, and is widely used in various voice communication access devices.
Description
Technical field
The utility model relates to a kind of for communication equipment test device, particularly a kind of channel selection device for the PCM testing of equipment.
Background technology
Along with the step iterative method of cybertimes, people promote day by day to the demand of network, and the client also promotes the product reliability of communication equipment producer and the requirement of function thereupon.For satisfying the client to the requirement of communication equipment, each communication equipment producer need to carry out strict test to the equipment before dispatching from the factory.PCM equipment is as a kind of multi-service integrated access device, because of its passage exclusivity that has in the voice-and-data access, avoided the communication disruption that causes because of network delay, made it have consequence and effect in the communication private networks such as government, national defence, electric power, telecommunications.For guaranteeing stability and the reliability of PCM equipment, need to carry out the practical communication test by each paths to PCM equipment before dispatching from the factory.
Existing known PCM testing of equipment is mainly by adopting the E1 circuit interconnected two PCM equipment, again the signal that picks out of two PCM equipment carried out the test of single channel practical communication, adopt this kind method to carry out the practical communication test and need to plug frequently connector, not only increased manual operation intensity, and reduced testing efficiency, become the key that the restriction PCM device fabrication cycle shortens.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and a kind of channel selection device for the PCM testing of equipment is provided, and can improve the testing efficiency of PCM equipment, can reduce manual operation intensity again.
According to a kind of channel selection device for the PCM testing of equipment that the utility model proposes, it is characterized in that comprising routing controller, DSP Logic control module, relay switch switching circuit and interface circuit, wherein the DSP Logic control module is connected with the relay switch switching circuit with the routing controller respectively, the relay switch switching circuit also is connected with stored-program control exchange, test interface and interface circuit respectively, and interface circuit is accepted exterior PC M device signal.The further preferred version of the utility model is that the DSP Logic control module is fpga chip or ARM chip.
The utility model compared with prior art its remarkable advantage is: first, routing testing equipment described in the utility model can pick out multi-path voice or digital signal from two interconnected PCM simultaneously, and but manual switchover carries out single-path testing, both improved testing efficiency, reduced again manual operation intensity.The second, device interior adopts DSP Logic control module control relay switching switch circuit, can carry out single channel control switching to dissimilar voice or data-interface respectively, has improved the integrated level of this routing testing equipment.
Description of drawings
Fig. 1 is the electrical block diagram according to a kind of channel selection device for the PCM testing of equipment that the utility model proposes.
Embodiment
Below in conjunction with drawings and Examples, the utility model embodiment is described in further detail.
in conjunction with Fig. 1, a kind of channel selection device for the PCM testing of equipment that the utility model proposes, comprise the routing controller, the DSP Logic control module, relay switch switching circuit and interface circuit, wherein the DSP Logic control module is selected fpga chip or ARM chip, the DSP Logic control module is connected with the relay switch switching circuit with the routing controller respectively, the input and output side of outside stored-program control exchange is connected with the relay switch switching circuit respectively, the relay switch switching circuit also is connected with interface circuit with test interface respectively, interface circuit can be accepted exterior PC M device signal, when the utility model carries out the speech line test, at first the DSP Logic control module carries out interface type and differentiates, then control relay switching switch circuit, the FXO interface of exterior PC M equipment is connected to outside stored-program control exchange input, simultaneously outside stored-program control exchange output is connected to test interface, and the FXS interface of another exterior PC M equipment is connected to another test interface, external call can carry out actual speaking test by two test interfaces respectively, when the utility model carries out the data circuit test, at first the DSP Logic control module carries out the differentiation of interface type, then control relay switching switch circuit is connected to respectively two test interfaces with the data-interface of two exterior PC M equipment, is convenient to the external meters equipment access and tests.
Claims (2)
1. channel selection device that is used for the PCM testing of equipment, it is characterized in that comprising routing controller, DSP Logic control module, relay switch switching circuit and interface circuit, wherein the DSP Logic control module is connected with the relay switch switching circuit with the routing controller respectively, the relay switch switching circuit also is connected with stored-program control exchange, test interface and interface circuit respectively, and interface circuit is accepted exterior PC M device signal.
2. a kind of channel selection device for the PCM testing of equipment according to claim 1, is characterized in that the DSP Logic control module is fpga chip or ARM chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684363 CN202998132U (en) | 2012-12-13 | 2012-12-13 | Routing device used for PCM device test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684363 CN202998132U (en) | 2012-12-13 | 2012-12-13 | Routing device used for PCM device test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202998132U true CN202998132U (en) | 2013-06-12 |
Family
ID=48569256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220684363 Expired - Fee Related CN202998132U (en) | 2012-12-13 | 2012-12-13 | Routing device used for PCM device test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202998132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515907A (en) * | 2015-12-10 | 2016-04-20 | 太仓市同维电子有限公司 | PCM4 test system and test method thereof |
-
2012
- 2012-12-13 CN CN 201220684363 patent/CN202998132U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515907A (en) * | 2015-12-10 | 2016-04-20 | 太仓市同维电子有限公司 | PCM4 test system and test method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Huang Wenjian Document name: Notice of termination of patent right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20201213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |