CN203368497U - EOC (Ethernet over Coax) data module card device - Google Patents
EOC (Ethernet over Coax) data module card device Download PDFInfo
- Publication number
- CN203368497U CN203368497U CN 201320384215 CN201320384215U CN203368497U CN 203368497 U CN203368497 U CN 203368497U CN 201320384215 CN201320384215 CN 201320384215 CN 201320384215 U CN201320384215 U CN 201320384215U CN 203368497 U CN203368497 U CN 203368497U
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- module
- chip module
- eoc
- data
- impedance matching
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Abstract
The utility model provides an EOC data module card device including an exchange chip module, a control chip module, a driving amplifying chip module, a 2/4 wire converting and impedance matching circuit module and a radio frequency connector module. Ethernet signals are input through the exchange chip module. The control chip module processes the Ethernet signals and outputs analog signals to the driving amplifying chip module. The analog signals are amplified by the driving amplifying chip module, converted to low-frequency data and matched impedance through the 2/4 wire converting and impedance matching circuit module and then output by the radio frequency connector module. By adopting the EOC data module card device, mutual conversion of the Ethernet signals and the EOC low-frequency data and transmission to a lower-level chip are realized. The Ethernet signals are output after being modulated and going through a 2/4 wire converting and impedance matching process. The EOC data module card device provided by the utility model is excellent and reliable in performance.
Description
[technical field]
The utility model relates to a kind of structure of data card, relates in particular to a kind of data card that is suitable as very much the function module card of EOC local side apparatus.
[background technology]
EOC(Ethernet over Coax, carry out the transmission of Ethernet data signal in coaxial cable) be one of technology in Two-way Network transformation instantly, the main transfer of data of exactly ethernet signal being carried out after ovennodulation in coaxial cable, its frequency does not take limited television frequency section, and the cable TV frequency coexistence.
Generally, in the EOC local side apparatus, all be provided with a kind of function module card of modulating ethernet signal, to realize the mutual conversion of ethernet signal and EOC low-frequency data.At present, this class function module card performance is bad, unreliable.
[utility model content]
The technical problem that the utility model need solve is the reliable EOC data module of a kind of superior performance card apparatus.
For solving above-mentioned technical problem, the utility model has designed a kind of EOC data module card apparatus, it comprises the exchange chip module, the control chip module be connected with the exchange chip module, the drive amplification chip module be connected with the control chip module, 2/4 line conversion and the impedance matching circuit module be connected with the drive amplification chip module, and the radio frequency connector module be connected with impedance matching circuit modular circuit module with 2/4 line conversion, ethernet signal is by the access of exchange chip module, the control chip module is delivered to the drive amplification chip module by ethernet signal through processing outputting analog signal again, by the drive amplification chip module, amplified, by 2/4 line conversion with after the impedance matching circuit module converts becomes low-frequency data and matched impedance, by the radio frequency connector module, transferred out.
As the utility model, further improve, the exchange chip module is connected with the control chip module by serial kilomegabit Media Independent Interface.
As the utility model, further improve, described EOC data module card apparatus also comprises the memory module be connected with the control chip module.
The utility model EOC data module card apparatus is realized the mutual conversion of ethernet signal and EOC low-frequency data and is sent to subordinate's chip.Ethernet signal, after modulation, is exported after two-wire/four-wire conversion and matched impedance again.The utility model EOC data module card apparatus superior performance is reliable.
[accompanying drawing explanation]
Fig. 1 is the modular structure schematic diagram of the utility model EOC data module card apparatus.
[embodiment]
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
The utility model EOC data module card apparatus is a kind of data card of function module card of the EOC of being suitable as local side apparatus, for realizing the mutual conversion of ethernet signal and EOC low-frequency data.
As shown in Figure 1, this EOC data module card apparatus mainly is comprised of exchange chip module 1, control chip module 2,3, the 2/4 line conversion of drive amplification chip module and impedance matching circuit module 4, radio frequency connector module 5 and memory module 6.Exchange chip module 1 is connected by serial kilomegabit Media Independent Interface (SGMII) with control chip module 2, memory module 6 is connected with control chip module 2 respectively with drive amplification chip module 3, drive amplification chip module 3 is connected with impedance matching circuit module 4 with 2/4 line conversion, and 2/4 line conversion is connected with radio frequency connector module 5 with impedance matching circuit module 4.
The utility model EOC data module card apparatus is mainly realized the mutual conversion of ethernet signal and EOC low-frequency data.Ethernet signal is by the access of exchange chip module, the control chip module is processed outputting analog signal again by the ethernet signal process, analog signal is sent to the drive amplification chip module, by the drive amplification chip module, amplified, again by 2/4 line conversion with after the impedance matching circuit module converts becomes low-frequency data and matched impedance, by the radio frequency connector module, transferred out.The low-frequency data that the radio frequency connector module transfers out sends to the analog board of EOC local side apparatus, with the cable TV network signal, after the coupling of EOC duplexer settling signal, from output, by coaxial cable, is transmitted.
The utility model EOC data module card apparatus is realized the mutual conversion of ethernet signal and EOC low-frequency data and is sent to subordinate's chip.Ethernet signal, after modulation, is exported after two-wire/four-wire conversion and matched impedance again.The utility model EOC data module card apparatus superior performance is reliable.
Above-described is only execution mode of the present utility model, at this, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make improvement, but these all belongs to protection range of the present utility model.
Claims (3)
1. an EOC data module card apparatus, it is characterized in that, comprise the exchange chip module, the control chip module be connected with the exchange chip module, the drive amplification chip module be connected with the control chip module, 2/4 line conversion and the impedance matching circuit module be connected with the drive amplification chip module, and the radio frequency connector module be connected with the impedance matching circuit module with 2/4 line conversion, ethernet signal is by the access of exchange chip module, the control chip module is delivered to the drive amplification chip module by ethernet signal through processing outputting analog signal again, by the drive amplification chip module, amplified, by 2/4 line conversion with after the impedance matching circuit module converts becomes low-frequency data and matched impedance, by the radio frequency connector module, transferred out.
2. EOC data module card apparatus according to claim 1, is characterized in that, the exchange chip module is connected with the control chip module by serial kilomegabit Media Independent Interface.
3. EOC data module card apparatus according to claim 2, is characterized in that, also comprises the memory module be connected with the control chip module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320384215 CN203368497U (en) | 2013-06-28 | 2013-06-28 | EOC (Ethernet over Coax) data module card device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320384215 CN203368497U (en) | 2013-06-28 | 2013-06-28 | EOC (Ethernet over Coax) data module card device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203368497U true CN203368497U (en) | 2013-12-25 |
Family
ID=49816209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320384215 Expired - Fee Related CN203368497U (en) | 2013-06-28 | 2013-06-28 | EOC (Ethernet over Coax) data module card device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203368497U (en) |
-
2013
- 2013-06-28 CN CN 201320384215 patent/CN203368497U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20180628 |