CN2788464Y - Ethernet 10/100/1000 BASE-T self-adaptive SFP electrical interface module - Google Patents
Ethernet 10/100/1000 BASE-T self-adaptive SFP electrical interface module Download PDFInfo
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- CN2788464Y CN2788464Y CN 200520100918 CN200520100918U CN2788464Y CN 2788464 Y CN2788464 Y CN 2788464Y CN 200520100918 CN200520100918 CN 200520100918 CN 200520100918 U CN200520100918 U CN 200520100918U CN 2788464 Y CN2788464 Y CN 2788464Y
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- 230000005611 electricity Effects 0.000 claims description 20
- 230000006978 adaptation Effects 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000006855 networking Effects 0.000 claims description 2
- 230000001052 transient effect Effects 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
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Abstract
The utility model relates to an ethernet switching equipment and router equipment field mainly are an ethernet 10/100/1000 BASE-T self-adaptation SFP electrical interface module. The SFP electrical interface module mainly comprises the following steps: the SFP electric module mainly comprises a network transformer and RJ45, wherein an MDI/MDIX signal set is connected with a primary side of the network transformer, and a COM signal of the electric module is connected with a primary common middle tap of the network transformer; the secondary of the network transformer is connected to a corresponding pin of RJ 45. The utility model discloses a can provide SFP's 10/100/1000 BASE-T self-adaptation module for the user, finally reach reduce system cost, also improve interface scheme flexibility and interface density simultaneously.
Description
Technical field
The utility model relates to ethernet switching device and router device field, mainly is a kind of electrical interface module that is used for Ethernet SFP interface, for the user provides 10/100/1000BASE-T self adaptation Ethernet SFP RJ45 electrical interface.
Background technology
Present Ethernet SFP (miniature pluggable module, Small Form Pluggable) electrical interface solution, defective mainly comprises: 1) 10/100/1000BASE-T can not be provided complete adaptive SFP electrical interface solution; 2) the SFP electrical interface solution of present 10/100/1000BASE-T needs the PHY chip to bear the MAC function simultaneously, exists to use limitation greatly.And at present along with the increase of optical interface density and popularizing of light/electrical interface mixing use, how in limited device panel spatial dimension, be the total solution that the user provides the most flexible, integrated cost is minimum, become a difficult problem of industry equipment manufacturers.
Maturation along with physical layer (PHY) chip optic electric interface while tenability makes the utility model all possess great competitiveness on technology and cost.Specifically be exactly: on an ethernet device, corresponding PHY chip is supported the PHY function of 10/100/1000BASE-T and the PHY function of 1000BASE-SX simultaneously, and can dispose current effective PHY function type automatically according to current Link State or module status.The user side of PHY chip uses the utility model, can realize the support to 10/100/1000BASE-T self adaptation SFP electricity mouth.
Based on the utility model, can solve some present application-specific cost difficult problem: main demand SFP light mouth has the port demand of part 10/100/1000BASE-T simultaneously.
Summary of the invention
In sum, in order to use on physical chip (PHY IC) basis of supporting 1000BASE-T electricity mouthful pattern and 1000BASE-SX light mouth pattern, support 10/100/1000BASE-T adaptive electro interface at the SFP per-interface space, the utility model solves its technical problem, the technical scheme that is adopted is: mainly comprise network transformer and RJ45, the MDI/MDIX sets of signals is connected with the networking primary, and the COM signal is connected with the elementary public centre tap of network transformer; Secondary and the RJ45 respective pin of network transformer is connected.Signal flow is: with MDI/MDIX sets of signals and optionally electricity mouthful module index signal on the throne (inner ground connection) or signal ground, electric module COM signal (public centre tap), be incorporated in this 10/100/1000BASE-T SFP electricity mouthful module by connector, this electricity mouthful module makes being discerned by big system that this SFP electricity mouthful module can be correct for the PHY chip by loopback index signal on the throne, works in the 10/100/1000BASE-T pattern thereby activate this user port of big system configuration.
Description of drawings
Fig. 1 SFP 10/100/1000BASE-T electricity mouthful module by signal switching schematic diagram (is example with single SFP situation)
Fig. 2 SFP 10/100/1000BASE-T electricity mouthful modular circuit schematic diagram (is example with single SFP situation)
Fig. 3 SFP 10/100/1000BASE-T electricity mouthful module RJ45 signal schematic representation (is example with single SFP situation)
Embodiment
Below in conjunction with accompanying drawing and concrete mode the utility model is described in further detail.
Core concept of the present utility model is: will comprise the MDI/MDIX sets of signals of 10/100/1000BASE-T, optionally electric mouthful module index signal on the throne, introduce in this SFP electricity mouthful module by SFP CAGE, loopback electricity mouthful module index signal on the throne again, thus realize that 10/100/1000BASE-T SFP electricity mouthful module discerned and correctly configuration by big system.
Introduce the utility model device below in detail:
1) external interface of this device: as shown in Figure 1, have 2 interfaces, 18 signals.MDI/MDIX sets of signals wherein is totally 10 signals, be used for being connected with connector, comprise MDI0+/-(4 groups of MDI/MDIX differential pairs 0), MDI1+/-(4 groups of MDI/MDIX differential pairs 1), MDI2+/-(4 groups of MDI/MDIX differential pairs 2), MDI3+/-(4 groups of MDI/MDIX differential pairs 3), COM (network transformer centre tap in the electricity mouthful module), ACT_GND (signal ground, externally export to user's veneer and handle by connector, whether on the throne to judge this module).The MD sets of signals is the Ethernet RJ interface of standard, is used for subscriber cable and connects, and comprises 8 signals (4 pairs of differential signals) altogether.
2) the specific implementation circuit of this device: as shown in Figure 2, the interface signal of connector end sees 1) described.T0 is a network transformer; R0/R1/R2/R3 is an impedance matching resistance; R4/R5/R6 is 0 a Ou Xuan weldering resistance, and these three choosing weldering resistance are used for selecting whether will shielding ground PGND and signal ground GND unification; C0/C1 is a common mode filtering electric capacity, and network transformer primary and secondary centre tap is respectively by these two filter capacitor ground connection; T1 is the transient state suppressing pipe that carries out the safety overvoltage protection; PGND protection ground externally is connected with user's veneer by module shielding case or connector; J0 is general RJ45, is used for the RJ45 output of standard.
3) the RJ45 interface of this device, as shown in Figure 3:, when the utility model SFP 10/100/1000BASE-T electricity mouthful module works in the 10/100BASE-T pattern, differential signal group 0 and 1 is effective, when the utility model SFP 10/100/1000BASE-T electricity mouthful module worked in the 1000BASE-T pattern, 4 groups of differential signals simultaneously effectively.
Practical application for this utility model, give an example: for the SFP gigabit Optical Fiber Interface Board of certain piece 48 port, the user mainly uses SFP optical interface wherein, 36 have been used, also remaining 12 SFP ports do not use, and the user just in time has the interface requirements that is equal to or less than 12 10/100/1000BAASE-T.At this moment, if this veneer SFP connector is supported this electricity mouthful module, the user does not just need to buy new gigabit electricity oralia (cost is higher) again, and only need buy the SPF electricity mouthful module of the 10/100/1000BASE-T of respective numbers.After the purchase, the user only need insert this electricity mouthful module among the SFP CAGE, and then system will dispose these port workings in the 10/100/1000BASE-T pattern according to testing result.
In a word, the above is an exemplifying embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.
Claims (7)
1. Ethernet 10/100/1000BASE-T self adaptation SFP electrical interface module, it is characterized in that: mainly comprise network transformer RJ45, the MDI/MDIX sets of signals is connected with the networking primary, and the COM signal is connected with the elementary centre tap of network transformer; Secondary and the RJ45 respective pin of network transformer is connected.
2. Ethernet 10/100/1000BASE-T self adaptation SFP electrical interface module according to claim 1, it is characterized in that: increase electricity mouthful module index signal on the throne, be connected internally to GND, externally export to user's veneer and handle by connector, whether on the throne to judge this module.
3. Ethernet 10/100/1000BASE-T self adaptation SFP electrical interface module according to claim 1, it is characterized in that: increase shielding ground PGND and signal ground GND, whether inner by selecting weldering resistance to select to unify, PGND externally is connected with user's veneer by module shielding case or connector.
4. Ethernet 10/100/1000BASE-T self adaptation SFP electrical interface module according to claim 1, it is characterized in that: RJ45 is the standard interface of Ethernet 10/100/1000BASE-T; The MDI/MDIX sets of signals is the MDI/MDIX sets of signals of 10/100/1000BASE-TPHY chip output.
5. Ethernet 10/100/1000BASE-T self adaptation SFP electrical interface module according to claim 1 is characterized in that: the primary centre tap is by capacitor C 0 ground connection, and secondary centre tap is by impedance matching resistance and capacitor C 1 ground connection.
6. Ethernet 10/100/1000BASE-T self adaptation SFP electrical interface module according to claim 1 or 5, it is characterized in that: described impedance matching resistance comprises R0, R1, R2 and R3; Carry out overvoltage protection by transient state suppressing pipe T1 between the secondary differential signal of network transformer.
7. according to claim 1 or 2 or 3 described Ethernet 10/100/1000BASE-T self adaptation SFP electrical interface modules, it is characterized in that: when using index signal on the throne, PGND and GND unification are connected to user's veneer by shielding case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100918 CN2788464Y (en) | 2005-03-10 | 2005-03-10 | Ethernet 10/100/1000 BASE-T self-adaptive SFP electrical interface module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200520100918 CN2788464Y (en) | 2005-03-10 | 2005-03-10 | Ethernet 10/100/1000 BASE-T self-adaptive SFP electrical interface module |
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| CN2788464Y true CN2788464Y (en) | 2006-06-14 |
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| CN 200520100918 Expired - Fee Related CN2788464Y (en) | 2005-03-10 | 2005-03-10 | Ethernet 10/100/1000 BASE-T self-adaptive SFP electrical interface module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104871519A (en) * | 2012-12-20 | 2015-08-26 | 汤姆逊许可公司 | Method for activating a service on a principal device, and respective apparatus |
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2005
- 2005-03-10 CN CN 200520100918 patent/CN2788464Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104871519A (en) * | 2012-12-20 | 2015-08-26 | 汤姆逊许可公司 | Method for activating a service on a principal device, and respective apparatus |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |