CN103684935A - Adaptive method and system for photoelectric network port of Ethernet - Google Patents
Adaptive method and system for photoelectric network port of Ethernet Download PDFInfo
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- CN103684935A CN103684935A CN201210338509.8A CN201210338509A CN103684935A CN 103684935 A CN103684935 A CN 103684935A CN 201210338509 A CN201210338509 A CN 201210338509A CN 103684935 A CN103684935 A CN 103684935A
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Abstract
The invention discloses an adaptive method and an adaptive system for a photoelectric network port of Ethernet. The adaptive system comprises an SFP (small form-factor pluggable) optical network port access module, an RJ-45 electric network port access module, an MDI (medium dependent interface) signal line switching module and a PCI-EXI expansion network card module, wherein the SFP optical network port access module comprises an SFP connector, a UTPTOFIBER chip, a first transformer and a first common mode choke coil which are sequentially connected; the first common mode choke coil and the SFP connector are connected with the MDI signal line switching module; the RJ-45 electric network port access module comprises an RJ-45 connector, a second transformer and a second common mode choke coil which are sequentially connected; the second common mode choke coil is connected with the MDI signal line switching module. According to the invention, adaptation of the photoelectric network port can be achieved directly through hardware, without needing software support; the optical network port is in priority access to an Ethernet access path.
Description
Technical field
The present invention relates to Ethernet, relate in particular to a kind of photoelectricity network interface adaptive approach and system of Ethernet.
Background technology
In prior art, realize the self adaptation of RJ-45 electrical network mouth and SFP light network interface, most applications all will depend on software.As shown in Figure 1, be the adaptive circuit of a kind of typical RJ-45 electrical network mouth and SFP light network interface.Single port RJ-45 network interface and SFP network interface, by an IC access network based on ethernet path, need firmware or driver to realize the self adaptation of SFP light network interface and RJ-45 electrical network mouth.SFP(Small Form-Factor Pluggable wherein) be the kilomegabit signal of telecommunication to be converted to the interface device of light signal.RJ-45 interface is generally used for transfer of data, is modal application network interface card interface.10/100/1000 Base-T RJ-45 interface is conventional Ethernet interface, support 10,000,000,100,000,000 and 1,000 million adaptive network connection speeds, common RJ-45 interface has two classes: for the DTE(Data Terminal Equipment data terminal equipment of ethernet nic, router ethernet interface etc.) type, be also useful on the DCE(Data Communications Equipment data communications equipment of switch etc.) type.
But in prior art, realize the self adaptation of RJ-45 electrical network mouth and SFP light network interface, larger to software dependence, as Windows serial system needs new driving exploitation.
Summary of the invention
The technical problem to be solved in the present invention is for the self adaptation that realizes RJ-45 electrical network mouth and SFP light network interface in prior art, software is relied on to larger defect, provide a kind of without software support, directly by hardware, realize the Adaptable System of the adaptive photoelectricity network interface of photoelectricity network interface.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of photoelectricity network interface Adaptable System of Ethernet is provided, comprises SFP light network interface access module, RJ-45 electrical network mouth access module, MDI holding wire handover module and PCI-EXI extend web card module, wherein,
Described SFP light network interface access module comprises SFP connector, UTP TO FIBER chip, the first transformer and the first common mode choke coil connecting in turn, and the first common mode choke coil is also connected with MDI holding wire handover module with SFP connector;
Described RJ-45 electrical network mouth access module comprises RJ-45 connector, the second transformer and the second common mode choke coil connecting in turn, and the second common mode choke coil is connected with MDI holding wire handover module.
In system of the present invention, SFP connector and RJ-45 connector are single port connector.
In system of the present invention, the first transformer and the second transformer are the 1000Mbps type transformer of single port.
In system of the present invention, described MDI holding wire handover module preferentially selects to access SFP light network interface access module.
The present invention solves another technical scheme that its technical problem adopts:
The photoelectricity network interface adaptive approach that a kind of Ethernet is provided, comprises the following steps:
When SFP module is inserted the SFP connector in SFP light network interface access module, produce SFP light mouth control signal; Described SFP light network interface access module comprises SFP connector, UTP TO FIBER chip, the first transformer and the first common mode choke coil connecting in turn, and the first common mode choke coil is also connected with MDI holding wire handover module with SFP connector;
MDI holding wire handover module receives SFP light mouth control signal by SFP connector, if SFP light mouth control signal is low, MDI holding wire handover module is by SFP light network interface access module access network based on ethernet path;
If SFP light mouth control signal is high, MDI holding wire handover module is by RJ-45 electrical network mouth access module access network based on ethernet path, RJ-45 electrical network mouth access module comprises RJ-45 connector, the second transformer and the second common mode choke coil connecting in turn, and the second common mode choke coil is connected with MDI holding wire handover module.
The beneficial effect that the present invention produces is: in the photoelectricity network interface Adaptable System of Ethernet of the present invention using the signal of the SFP connector receiving as control signal, MDI holding wire handover module receives SFP light mouth control signal by SFP connector, if SFP light mouth control signal is low, MDI holding wire handover module is by SFP light network interface access module access network based on ethernet path; If SFP light mouth control signal is high, MDI holding wire handover module is by RJ-45 electrical network mouth access module access network based on ethernet path.The present invention, without software support, directly just can realize the self adaptation of photoelectricity network interface by hardware, and preferentially by light network interface access network based on ethernet path.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the adaptive circuit of typical RJ-45 electrical network mouth and SFP light network interface in prior art;
Fig. 2 is the structural representation of the photoelectricity network interface Adaptable System of embodiment of the present invention Ethernet;
Fig. 3 is the flow chart of the photoelectricity network interface adaptive approach of embodiment of the present invention Ethernet.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 2, the photoelectricity network interface Adaptable System of embodiment of the present invention Ethernet, comprise SFP light network interface access module 10, RJ-45 electrical network mouth access module 20, MDI holding wire handover module 30 and PCI-EXI extend web card module 40, wherein, MDI holding wire handover module 30 can be selected SFP light network interface access module 10 or RJ-45 electrical network mouth access module 20 access network based on ethernet according to control signal, in the preferred embodiment of the present invention when SFP light network interface access module 10 and RJ-45 electrical network mouth access module 20 is during simultaneously in connected state, the preferential SFP light network interface access module that is communicated with.
SFP light network interface access module 10 comprises that the SFP connector 11, UTP TO FIBER chip 12, the first transformer 13 and the first common mode choke coil 14, the first common mode choke coils 14 that connect in turn are also connected with MDI holding wire handover module 30 with SFP connector 11.
UTP TO FIBER chip 12 is coupled to optical fiber for the signal of telecommunication on unshielded twisted pair is become to light signal, can select single port 1000Mbps UTP TO FIBER.Between UTP TO FIBER chip 12 and the first transformer 13, pass through 4 pairs of MDI(Medium Dependent Interface Media Dependent Interface) signal communication.Between UTP TO FIBER chip 12 and SFP connector 11 by 2 pairs of SerDes Singal(serializer/deserializer signals) communicate by letter.
Between MDI holding wire handover module 30 and PCI-EXI extend web card module 40, also by 4 pairs of MDI signals, communicate by letter.
SFP connector 11 can insert SFP module (comprising SFP single mode or multi-mode optical module), when SFP module is inserted, using the effective status of the PRESENT signal in SFP module by signal as control signal (when SFP module is inserted, PRESENT signal is low).Specifically the PIN of corresponding PRESENT signal in SFP module can be connected with the ground in SFP module, when SFP module is inserted into SFP connector 11, SFP module ground connects together with the ground of native system, thereby PRESENT signal is set to electronegative potential; This PRESENT signal is not when inserting SFP module, and acquiescence is configured to high potential to moving VCC on it to.MDI holding wire handover module 30 can adopt ts3l500ae chip, and the Enable Pin of chip is received the low level that control signal is sent here, and Ethernet path is switched to SFP light network interface access module 10, realizes SFP module access network based on ethernet path;
When SFP module is not inserted, PRESENT signal in SFP module by signal is in the offhand ready init state of optical interface (when SFP module is not inserted, PRESENT signal is pulled to height), switch chip enable end and receive the high level that control signal is sent here, Ethernet path is switched to RJ-45 electrical network mouth access module 20, form RJ-45 electrical network mouth path, realize RJ-45 electrical interface access network based on ethernet path;
When SFP light network interface and RJ-45 electrical network mouth are during simultaneously in connection status, PRESENT signal in SFP module by signal, it is low making line switch chip enable end, Ethernet path is switched to SFP light network interface access module 10, form SFP light network interface path, realize SFP light network interface priority access Ethernet path.
RJ-45 electrical network mouth access module 20 comprises that the RJ-45 connector 21, the second transformer 22 and the second common mode choke coil 23, the second common mode choke coils 23 that connect are in turn connected with MDI holding wire handover module 30.Between RJ-45 connector 21 and the second transformer 22, by 4 pairs of MDI signals, communicate by letter.
In the embodiment of the present invention, SFP connector 11 and RJ-45 connector 21 are single port connector.PCI-EXI extend web card module 40 can be the PCI-EXI expansion network card chip of single port 10/100/1000Mbps.
In the embodiment of the present invention, the first transformer 12 and the second transformer 22 are the 1000Mbps type transformer of single port.
The photoelectricity network interface Adaptable System of the Ethernet of the photoelectricity network interface adaptive approach of embodiment of the present invention Ethernet based on above-described embodiment, when SFP module is inserted the SFP connector in SFP light network interface access module, produces SFP light mouth control signal; SFP light network interface access module comprises SFP connector, UTPTO FIBER chip, the first transformer and the first common mode choke coil connecting in turn, and the first common mode choke coil is also connected with MDI holding wire handover module with SFP connector;
The Enable Pin of MDI holding wire handover module receives SFP light mouth control signal by SFP connector, if SFP light mouth control signal is low, MDI holding wire handover module is by SFP light network interface access module access network based on ethernet path;
If SFP light mouth control signal is high, MDI holding wire handover module is by RJ-45 electrical network mouth access module access network based on ethernet path, RJ-45 electrical network mouth access module comprises RJ-45 connector, the second transformer and the second common mode choke coil connecting in turn, and the second common mode choke coil is connected with MDI holding wire handover module.
The embodiment of the present invention using the effective status of the PRESENT signal in SFP module by signal as control signal (when SFP module is inserted, PRESENT signal is low), MDI holding wire handover module 30(can adopt independent holding wire to switch chip and realize) receive the low level that control signal is sent here, Ethernet path is switched to SFP light network interface access module 10, realizes SFP module access network based on ethernet path; When SFP module is not inserted, PRESENT signal in SFP module by signal is in the offhand ready init state of optical interface (when SFP module is not inserted, PRESENT signal is pulled to height), holding wire switches chip enable end receives the high level that control signal is sent here, Ethernet path is switched to RJ-45 electrical network mouth access module 20, form RJ-45 electrical network mouth path, realize RJ-45 electrical interface access network based on ethernet path; When SFP light network interface and RJ-45 electrical network mouth are during simultaneously in connection status, PRESENT signal in SFP module by signal, it is low making line switch chip enable end, Ethernet path is switched to SFP light network interface access module 10, form SFP light network interface path, realize SFP light network interface priority access Ethernet path.
In one embodiment of the invention, as shown in Figure 3, the photoelectricity network interface adaptive approach of the Ethernet of the system based on as shown in Figure 2 specifically comprises the following steps:
Whether S301, the PRESENT signal detecting in SFP module are low;
If S302 PRESENT signal is low, by SFP light network interface access network based on ethernet path;
If S303 PRESENT signal is high, by RJ-45 electrical network mouth access network based on ethernet path.
The present invention, without software support, directly just can realize the self adaptation of photoelectricity network interface by hardware, and preferentially by light network interface access network based on ethernet path.The present invention is owing to there is no the participation of software, realizes the photoelectricity self adaptation application of Ethernet in can other the multiple software systems within comprising LINUX.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (5)
1. a photoelectricity network interface Adaptable System for Ethernet, is characterized in that, comprises SFP light network interface access module, RJ-45 electrical network mouth access module, MDI holding wire handover module and PCI-EXI extend web card module, wherein,
Described SFP light network interface access module comprises SFP connector, UTP TO FIBER chip, the first transformer and the first common mode choke coil connecting in turn, and the first common mode choke coil is also connected with MDI holding wire handover module with SFP connector;
Described RJ-45 electrical network mouth access module comprises RJ-45 connector, the second transformer and the second common mode choke coil connecting in turn, and the second common mode choke coil is connected with MDI holding wire handover module.
2. system according to claim 1, is characterized in that, SFP connector and RJ-45 connector are single port connector.
3. system according to claim 1, is characterized in that, the first transformer and the second transformer are the 1000Mbps type transformer of single port.
4. system according to claim 1, is characterized in that, described MDI holding wire handover module preferentially selects to access SFP light network interface access module.
5. a photoelectricity network interface adaptive approach for Ethernet, is characterized in that, comprises the following steps:
When SFP module is inserted the SFP connector in SFP light network interface access module, produce SFP light mouth control signal; Described SFP light network interface access module comprises SFP connector, UTP TO FIBER chip, the first transformer and the first common mode choke coil connecting in turn, and the first common mode choke coil is also connected with MDI holding wire handover module with SFP connector;
MDI holding wire handover module receives SFP light mouth control signal by SFP connector, if SFP light mouth control signal is low, MDI holding wire handover module is by SFP light network interface access module access network based on ethernet path;
If SFP light mouth control signal is high, MDI holding wire handover module is by RJ-45 electrical network mouth access module access network based on ethernet path, RJ-45 electrical network mouth access module comprises RJ-45 connector, the second transformer and the second common mode choke coil connecting in turn, and the second common mode choke coil is connected with MDI holding wire handover module.
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| CN201210338509.8A CN103684935A (en) | 2012-09-13 | 2012-09-13 | Adaptive method and system for photoelectric network port of Ethernet |
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| CN201210338509.8A CN103684935A (en) | 2012-09-13 | 2012-09-13 | Adaptive method and system for photoelectric network port of Ethernet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108062055A (en) * | 2017-12-29 | 2018-05-22 | 陕西海泰电子有限责任公司 | A kind of PXIe controllers remote control system and method based on optical fiber |
| WO2021228204A1 (en) * | 2020-05-13 | 2021-11-18 | 华为技术有限公司 | Electronic device |
| CN114039939A (en) * | 2021-10-25 | 2022-02-11 | 北京四方继保工程技术有限公司 | Device, FPGA and method for self-adaptive optical-electrical interface |
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2012
- 2012-09-13 CN CN201210338509.8A patent/CN103684935A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108062055A (en) * | 2017-12-29 | 2018-05-22 | 陕西海泰电子有限责任公司 | A kind of PXIe controllers remote control system and method based on optical fiber |
| CN108062055B (en) * | 2017-12-29 | 2023-08-04 | 陕西海泰电子有限责任公司 | PXIe controller remote control system and method based on optical fiber |
| WO2021228204A1 (en) * | 2020-05-13 | 2021-11-18 | 华为技术有限公司 | Electronic device |
| CN114039939A (en) * | 2021-10-25 | 2022-02-11 | 北京四方继保工程技术有限公司 | Device, FPGA and method for self-adaptive optical-electrical interface |
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Application publication date: 20140326 |