CN203071922U - A multipath radio frequency device of an EOC device - Google Patents
A multipath radio frequency device of an EOC device Download PDFInfo
- Publication number
- CN203071922U CN203071922U CN2013200021649U CN201320002164U CN203071922U CN 203071922 U CN203071922 U CN 203071922U CN 2013200021649 U CN2013200021649 U CN 2013200021649U CN 201320002164 U CN201320002164 U CN 201320002164U CN 203071922 U CN203071922 U CN 203071922U
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- Prior art keywords
- eoc
- end module
- distributor
- radio frequency
- coupler
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- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The utility model discloses a multipath radio frequency device of an EOC device. The multipath radio frequency device is used for an EOC local-side device. The EOC local-side device comprises a power supply module, a housing, a multipath radio frequency device, and a master control module. The multipath radio frequency device comprises a coupler, diplexers, a front end module, output ports, and input ports. The diplexers are disposed on the bottom plate of the coupler. Each diplexer is connected with an output port and an input port. A distributor is disposed on the bottom plate of the coupler. The front end module is connected with the distributor through a connector. The distributor is connected with at least two diplexers through connectors. The front end module of the multipath radio frequency device of an EOC device has advantages of high utilization rate, low cost, and easy capacity expansion.
Description
Technical field
The utility model relates to a kind of device that transmits and receive data in communication equipment, relate in particular to a kind of multi-channel rf device of EOC equipment.
Background technology
Along with the requirement of SARFT(The State Administration of Radio and Television) to digital improvement and unification of three nets, present national cable TV industry is being carried out the overall digital transformation.Cable television digitalization will make the business of whole cable TV, operation mode have a revolutionary change, have the one-way video business to the data of two-way interactive, look, the development of audio frequency integrated service, and new business and new operation mode have proposed new requirement to network, and the most concentrated embodiment is exactly to require the network realization two-way.On development trend, it is development models of Access Network from now on that ether media access control layer data protocol is worked in various physical layer networks.
EOC is based on the cable tv coax net, use the access technology of Ethernet protocol, basic principle is: utilize cable TV signal in the above frequency transmission of 100MHz, base-band data signal is in the characteristic of the following frequency transmission of 80MHz, both are transmitted in a coaxial cable and be independent of each other, thereby utilize TV signal and data-signal cable TV network to deliver to the user.At user side TV signal and data-signal are separated, inserted corresponding terminal equipment.
Along with the development of modern network and increasing of applied business, existing corridor high level and user's increase, and local side apparatus only provides a signal output interface, can't satisfy multi-user's demand.In the prior art, a kind of mode is that the increase branch distributor of taking solves the single problem of access interface, and this processing mode has increased cost, complexity and the weight of system; Another kind of mode arranges several front-end modules.The corresponding duplexer of each front-end module, the corresponding TV input port of each duplexer and an OUT(TV+DATA) port, because EOC equipment uses usually and locates at the light station, the light station has 4 TV output interfaces usually, therefore, adopts this processing mode that 4 front-end modules need be set, each front-end module can use for 64 users, the EOC business of in the building, carrying out more after a little while, the utilization rate of front-end module is lower with causing, and causes the waste of resource.
Therefore, provide a kind of front-end module utilization rate height, cost is low and the multi-channel rf device of the simple EOC equipment of dilatation is the technical problem that those skilled in the art need solution badly.
The utility model content
The purpose of this utility model provides a kind of front-end module utilization rate height, cost is low and the multi-channel rf device of the simple EOC equipment of dilatation.
To achieve these goals, the utility model provides a kind of multi-channel rf device of EOC equipment, be used for the EOC local side apparatus, described EOC local side apparatus comprises power module, shell, the multi-channel rf device, main control module, described multi-channel rf device comprises coupler, duplexer, front-end module, output port and input port, described duplexer is arranged on the base plate of described coupler, described front-end module links to each other with described duplexer, each described duplexer links to each other with a described input port with a described output port, the base plate of described coupler is provided with distributor, described front-end module is connected with described distributor by joint, and described distributor is connected with at least two duplexers by joint.
Preferably, described distributor is two distributors, and each front-end module is connected with two duplexers by described two distributors.
Compared with prior art, the multi-channel rf device of EOC equipment provided by the utility model by at base plate distributor being set, is connected by a distributor each front-end module with at least two duplexers, thereby improved the utilance of front-end module greatly, and reduced cost; Simultaneously, the EOC business is more in floor, when needing dilatation, only need to increase the quantity of front-end module, and direct the connection by interface with each duplexer of each front-end module got final product, therefore, dilatation is simple, and can not bring the electric noise environment and reduce signal quality and influence the sensitiveness of port; Distributor adopts two distributors, and each front-end module is connected with two duplexers by two distributors, both can take full advantage of front-end module, and the device interior layout is simple, practical simultaneously.
Description of drawings
Fig. 1 is the use status circuit block diagram of a kind of embodiment of the multi-channel rf device of a kind of EOC equipment that the utility model proposes;
Fig. 2 is that the status circuit block diagram is used in the dilatation of a kind of embodiment of the multi-channel rf device of a kind of EOC equipment that the utility model proposes;
Fig. 3 is the circuit element figure of a kind of embodiment of the multi-channel rf device of a kind of EOC equipment that the utility model proposes.
Embodiment
The purpose of this utility model provides a kind of front-end module utilization rate height, cost is low and the multi-channel rf device of the simple EOC equipment of dilatation.
In order to make those skilled in the art understand the technical solution of the utility model better; below in conjunction with accompanying drawing the utility model is described in detail; the description of this part only is exemplary and explanatory, should any restriction not arranged to protection range of the present utility model.
Please refer to Fig. 1, Fig. 2 and Fig. 3, in one embodiment, the utility model provides a kind of multi-channel rf device of EOC equipment, be used for the EOC local side apparatus, described EOC local side apparatus comprises power module, shell, the multi-channel rf device, main control module, described multi-channel rf device comprises coupler, duplexer, front-end module, output port and input port, described duplexer is arranged on the base plate of described coupler, each described duplexer links to each other with a described input port with a described output port, the base plate of described coupler is provided with two distributors, each described front-end module is connected with described two distributors by joint 3, and described two distributors are by joint 1, joint 2 is connected with two duplexers.
By at base plate distributor being set, each front-end module being connected with at least two duplexers by a distributor, thereby having improved the utilance of front-end module greatly, and reduced cost; Simultaneously, the EOC business is more in floor, when needing dilatation, only need to increase the quantity of front-end module, and direct the connection by interface with each duplexer of each front-end module got final product, therefore, dilatation is simple, and can not bring the electric noise environment and reduce signal quality and influence the sensitiveness of port; Distributor adopts two distributors, and each front-end module is connected with two duplexers by two distributors, both can take full advantage of front-end module, and the device interior layout is simple, practical simultaneously.
Need to prove that the utility model does not limit type and the quantity of distributor, the quantity of distributor can be set according to the quantity of front-end module, can connect the quantity employing different types of assignment device of duplexer according to front-end module; Therefore; can be to adopt two distributors; also can adopt three distributors; a front-end module is connected with three duplexers by three distributors; only need to adopt distributor with one remove the corresponding duplexer of a front-end module restriction; improve the utilization rate of front-end module, just all should be within the utility model protection range.
Need to prove, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make and comprise which key element process, method, article or the equipment of a series of key elements not only comprise, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.Do not having under the situation of more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises key element and also have other identical element.
Used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.The above only is preferred implementation of the present utility model, should be understood that, because the finiteness of literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some improvement, retouching or variation, also above-mentioned technical characterictic can be made up by rights; These improve retouching, change or combination, or without improving the design of utility model and technical scheme are directly applied to other occasion, all should be considered as protection range of the present utility model.
Claims (2)
1. the multi-channel rf device of an EOC equipment, be used for the EOC local side apparatus, described EOC local side apparatus comprises power module, shell, the multi-channel rf device, main control module, described multi-channel rf device comprises coupler, duplexer, front-end module, output port and input port, described duplexer is arranged on the base plate of described coupler, described front-end module links to each other with described duplexer, each described duplexer links to each other with a described input port with a described output port, it is characterized in that, the base plate of described coupler is provided with distributor, described front-end module is connected with described distributor by joint, and described distributor is connected with at least two duplexers by joint.
2. the multi-channel rf device of EOC equipment according to claim 1 is characterized in that, described distributor is two distributors, and each front-end module is connected with two duplexers by described two distributors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200021649U CN203071922U (en) | 2013-01-05 | 2013-01-05 | A multipath radio frequency device of an EOC device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200021649U CN203071922U (en) | 2013-01-05 | 2013-01-05 | A multipath radio frequency device of an EOC device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203071922U true CN203071922U (en) | 2013-07-17 |
Family
ID=48770664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200021649U Expired - Fee Related CN203071922U (en) | 2013-01-05 | 2013-01-05 | A multipath radio frequency device of an EOC device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203071922U (en) |
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2013
- 2013-01-05 CN CN2013200021649U patent/CN203071922U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20130717 Termination date: 20220105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |