CN2857340Y - Photoelectric converter of 650nm plastic fiber glass transmission system - Google Patents
Photoelectric converter of 650nm plastic fiber glass transmission system Download PDFInfo
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- CN2857340Y CN2857340Y CNU2005201398455U CN200520139845U CN2857340Y CN 2857340 Y CN2857340 Y CN 2857340Y CN U2005201398455 U CNU2005201398455 U CN U2005201398455U CN 200520139845 U CN200520139845 U CN 200520139845U CN 2857340 Y CN2857340 Y CN 2857340Y
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- medium conversion
- dm9331a
- chip dm9331a
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Abstract
The O/E converter of the 650nm plastic optical fiber transmission system concerns a network equipment, especially a user terminal equipment of optical network, which includes the power supply circuit providing power to the complete system, optical interface circuit, electrical interface circuit, two media conversion control chips DM933aA, crystal vibration circuit. The crystal vibration circuit is connected to the power supply circuit, the crystal vibration circuit is also connected with the two media conversion control chips DM9331A respectively. The two media conversion control chips DM9331A are connected with each other. Each media conversion control chips DM9331A connects with the optical interface circuit and electrical interface circuit respectively. In present full optical network 650nm information transmission system which converts 1550nm, 1310nm, 850nm silica optical fiber signals into 650 nm plastic optical fiber signals respectively, conversion can be conducted between optical signal applicable to plastic optical fiber transmission and electrical signal applicable to twisted-pair cable transmission which provides accessible conditions for the realization of full optical network.
Description
Technical field
The utility model relates to a kind of network equipment, especially a kind of subscriber terminal equipment of optical-fiber network, " last kilometer " subscriber terminal equipment that just is commonly called as usually.
Background technology
The silica fiber network information on the existing backbone must be through light/electricity, electricity/light conversion when access user terminal, and this changing turns over journey and not only influence transmission speed, and causes signal attenuation, information distortion, is subject to external interference, and the information that also is prone to is stolen.
In order to change the above-mentioned defective in the existing information transmission, a kind of all-optical network just under study for action, all-optical network becomes the first-selection of (ultrahigh speed) broadband network at a high speed of future generation with its good transparency, wavelength routing characteristic, compatibility and extensibility.
The utility model content
To be exactly that design is a kind of convert the optical-electrical converter of the 650nm plastic fiber transmission system of changing between the signal of telecommunication of the light signal that can will be fit to the plastic fiber transmission in all optical network 650nm information transmission system of 650nm plastic fiber signal and the transmission of suitable twisted-pair feeder respectively at existing 1550nm, 1310nm, 850nm silica fiber signal to the utility model purpose.
The utility model comprises by the power circuit of supplying with whole system, optical interface circuit, electrical interface circuit, two medium conversion and control chip DM9331A, crystal oscillating circuit; Crystal oscillating circuit is connected on the power circuit, crystal oscillating circuit is connected with two medium conversion and control chip DM9331A respectively again, two medium conversion and control chip DM9331A interconnect, and each medium conversion and control chip DM9331A is connected with optical interface circuit, electrical interface circuit respectively.
The utility model is to be the photo-translating system of core composition with two DM9331A.They by the TP electrical interface circuit and the TODX2402 fiber optic interface circuits of ST88616 category-5 cable, are connected to common category-5 cable cable and 650nm plastic fiber respectively.Crystal oscillating circuit provides the clock source for the medium conversion chip, medium conversion and control chip DM9331A is a low-power consumption, high performance CMOS chip, it has the whole physical layer function that meet the IEEE802.3u standard, mainly comprise Physical Coding Sublayer (PCS), the PECL compatibility interface that is used for optic module, can select full-duplex/half-duplex mode of operation etc. automatically, realize of the conversion of different wave length light signal to the 650nm light signal, both can provide and the direct interface of twisted-pair feeder (category-5 cable) cable, also can connect outside fiber optical transceiver by the PECL interface at the 100Base-TX Fast Ethernet.Operation principle of the present utility model is as follows:
(1) holds the initial operation mode that DM9331A is set by OP2, OP1, OP0.When being arranged to 010, but system just is operated under artificial selection " 100FX full duplex " pattern; When being arranged to 001, but system just is operated under artificial selection " 100FX half-duplex " pattern; In this change-over circuit, chip is configured to " 100FX full duplex " pattern.
(2) pass through the two-way flow that MCI (medium control interface) realizes data.Chip carries out sending and receiving data (RXD, TXD) under the synchronous coordination of 50MHz crystal oscillator, and receives/send out the 2bits data message in each clock cycle of TXEN valid period.Equally also be once to transmit the 2bits data between two chips.
(3) TXEN of one of them DM9331A comes from the RXDV signal end of another DM9331A, the data mode on the physical medium that the medium control interface is transmitting.
(4) medium independent interface register (Media Independent Interface Register) group is write default various states (0 or 1), reset mode, near-end loopback test, transmission speed, automatic negotiation to the wavelength shifter system enable, restart various parameters such as automatic negotiation, full duplex and make concrete setting, for the bit position that does not have specific (special) requirements, generally can adopt default value.
(5) two DM9331A also can deliver to real-time working state of system (list/duplex, transfer of data, medium connect, make mistakes etc.) in the display driver circuit in the process of data communication, intuitively show by LED at last.
A building block in the utility model plastic fiber system integration all-optical network, to still use the computer of existing all size Ethernet card to be connected to all optical network system, and obtain high rate of information throughout by all optical network, and can make plastic fiber system and the effective intercommunication of common information net, carry out the optical communication of full process and full network.
Two medium conversion and control chip DM9331A also connect led drive circuit respectively.
Crystal oscillating circuit of the present utility model is connected DC/DC transducer+3.3V output, the AC/DC power supply changeover device is connected on outward on the 220V alternating current, 220 alternating currents are transformed into+output of 5V direct current by the AC/DC power supply changeover device, its output is connected the input of DC/DC transducer, and the DC/DC transducer also is connected with two medium conversion and control chip DM9331A respectively.
The pin 17 of medium conversion and control chip DM9331A N2 of the present utility model is connected with the pin 14 of medium conversion and control chip DM9331A N3, the pin 19 of medium conversion and control chip DM9331A N2 is connected with the pin 28 of medium conversion and control chip DM9331A N3, the pin 20 of medium conversion and control chip DM9331AN2 is connected with the pin 29 of medium conversion and control chip DM9331A N3, the pin 21 of medium conversion and control chip DM9331A N2 is connected with the pin 37 of medium conversion and control chip DM9331A N3, the pin 24 of medium conversion and control chip DM9331A N2 is connected with the pin 24 of medium conversion and control chip DM9331A N3, the pin 25 of medium conversion and control chip DM9331A N2 is connected with the pin 25 of medium conversion and control chip DM9331A N3, the pin 26 of medium conversion and control chip DM9331A N2 is connected with the pin 17 of medium conversion and control chip DM9331A N3, the pin 28 of medium conversion and control chip DM9331A N2 is connected with the pin 19 of medium conversion and control chip DM9331A N3, the pin 29 of medium conversion and control chip DM9331A N2 is connected with the pin 20 of medium conversion and control chip DM9331A N3, the pin 37 of medium conversion and control chip DM9331A N2 is connected with the pin 21 of medium conversion and control chip DM9331A N3, and the pin 40 of medium conversion and control chip DM9331A N2 is connected with the pin 40 of medium conversion and control chip DM9331A N3.
Description of drawings
Fig. 1 is a composition frame chart of the present utility model.
Fig. 2 is one of circuit theory diagrams of the present utility model;
Fig. 3 is two of circuit theory diagrams of the present utility model;
Fig. 4 is three of circuit theory diagrams of the present utility model;
Fig. 5 is four of circuit theory diagrams of the present utility model;
Fig. 6 is five of circuit theory diagrams of the present utility model;
Fig. 7 is six of circuit theory diagrams of the present utility model.
Specific embodiment
The RJ45 interface by medium conversion and control chip DM9331A N3 and the TP interface circuit that is connected with N3, crystal oscillating circuit, automatically, full duplex selects indicating circuit, transforming circuit to form.
Power supply circuits of the present utility model comprise two parts:
The one, the AC/DC translation circuit of 220V alternating voltage commentaries on classics+5V direct voltage, the interchange of permission is input as 150V～264V, 50/60Hz, the output voltage precision is ± 1%, and ripple coefficient is less than 1%.
The 2nd, the DC/DC translation circuit of+5V direct voltage commentaries on classics+3.3V direct voltage.Conversion goes out+and 3.3V mainly is a usefulness of supplying with chip DM9331 and fiber optic interface circuits.2.2 μ H inductance and filter capacitors are set respectively between the ground of power supply.
Indicator light circuit is composed in series by resistance and LED.
The optical signal interface circuit is made up of with the optical interface circuit that is connected with N2, optical module power supply circuits, optical module direction transducer, the conversion of half full duplex and indicating circuit medium conversion and control chip DM9331N2, and the optical interface circuit is made up of connector T ODX2402 and resistance.
Also be provided with indicator light circuit on the optical signal interface circuit.
The pin 43 of the media conversion control chip N2 of optical signal interface circuit is connected the crystal oscillator power output end of 50MHz.
The pin 17 of chip N2 is connected with the pin 14 of chip N3, the pin 19 of chip N2 is connected with the pin 28 of chip N3, the pin 20 of chip N2 is connected with the pin 29 of chip N3, the pin 21 of chip N2 is connected with the pin 37 of chip N3, the pin 24 of chip N2 is connected with the pin 24 of chip N3, the pin 25 of chip N2 is connected with the pin 25 of chip N3, the pin 26 of chip N2 is connected with the pin 17 of chip N3, the pin 28 of chip N2 is connected with the pin 19 of chip N3, the pin 29 of chip N2 is connected with the pin 20 of chip N3, the pin 37 of chip N2 is connected with the pin 21 of chip N3, and the pin 40 of chip N2 is connected with the pin 40 of chip N3.
The RXDV end of the TXEN of medium conversion and control chip DM9301A end and another medium conversion and control chip DM9301A intersects the TXD end of RXD end and another media conversion control chip DM9301A of mutual connection, a media conversion control chip DM9301A and intersects mutual connection, and the FXRD of two media conversion control chip DM9301A holds, FXTD holds difference external.The OSCIN end of two media conversion control chip DM9301A all is connected the crystal oscillator power output end of 50MHz.
Optical fiber transmitting-receiving interface circuit: the optical fiber transceiver module TODX2402 with TOSHIBA company is main the composition, constitute 8 data I/O passages on the switch physical layer, bi-directional data is connected to the RX+/FXRD+ of medium conversion chip DM9331, RX-/FXRD, TX+/FXTD+,, TX-/FXTD-, on 4 I/O pin, the independent transmitting-receiving exchange that realizes light signal under the control of FXSD1 signal.
When the magnitude of voltage of the optical signal detecting pin FXSD18 of light exchange chip during greater than 0.6V, this port working is in the 100BaseFX pattern, and when 0.6V＜VFXSDn＜1.25V, FXSDn is a low level, and light signal connects indication " extinguishing "; When VFXSDn＞1.25V, FXSDn is a high level, and light signal connects indication " lighting ".
The utility model is by two working station indicators, the dynamic behavior of display light electric transducer, for example transfer of data, error situation etc.
DIAG_STO-diagnostic state output, as DIAG_ACT=1 and when being in the FX mode, DIAG_STO=1 represents the light successful connection;=0 represents the optical fiber connection failure.Be used for automatic loopback test.
FX_LINK/ACT-connects or movable indicator light.
Under the FX_FAULTLED-FX pattern, the indexed optical fiber signal error.
The signaling interface of optical fiber transceiver module TODX2402 and medium conversion chip DM9331A is 3.3 volts of PECL interfaces.
Claims (4)
1, the optical-electrical converter of 650nm plastic fiber transmission system is characterized in that comprising by the power circuit of supplying with whole system, optical interface circuit, electrical interface circuit, two medium conversion and control chip DM9331A, crystal oscillating circuit; Crystal oscillating circuit is connected on the power circuit, crystal oscillating circuit is connected with two medium conversion and control chip DM9331A respectively again, two medium conversion and control chip DM9331A interconnect, and each medium conversion and control chip DM9331A is connected with optical interface circuit, electrical interface circuit respectively.
2,, it is characterized in that two medium conversion and control chip DM9331A also connect led drive circuit respectively according to the optical-electrical converter of the described 650nm plastic fiber of claim 1 transmission system.
3, according to the optical-electrical converter of the described 650nm plastic fiber of claim 1 transmission system, it is characterized in that crystal oscillating circuit be connected the DC/DC transducer+the 3.3V output, the AC/DC power supply changeover device is connected on outward on the 220V alternating current, 220 alternating currents are transformed into+output of 5V direct current by the AC/DC power supply changeover device, its output is connected the input of DC/DC transducer, and the DC/DC transducer also is connected with two medium conversion and control chip DM9331A respectively.
4, optical-electrical converter according to claim 1 or 2 or 3 described 650nm plastic fiber transmission systems, the pin 17 that it is characterized in that medium conversion and control chip DM9331A N2 is connected with the pin 14 of medium conversion and control chip DM9331AN3, the pin 19 of medium conversion and control chip DM9331AN2 is connected with the pin 28 of medium conversion and control chip DM9331A N3, the pin 20 of medium conversion and control chip DM9331A N2 is connected with the pin 29 of medium conversion and control chip DM9331A N3, the pin 21 of medium conversion and control chip DM9331A N2 is connected with the pin 37 of medium conversion and control chip DM9331A N3, the pin 24 of medium conversion and control chip DM9331A N2 is connected with the pin 24 of medium conversion and control chip DM9331A N3, the pin 25 of medium conversion and control chip DM9331A N2 is connected with the pin 25 of medium conversion and control chip DM9331A N3, the pin 26 of medium conversion and control chip DM9331A N2 is connected with the pin 17 of medium conversion and control chip DM9331A N3, the pin 28 of medium conversion and control chip DM9331A N2 is connected with the pin 19 of medium conversion and control chip DM9331A N3, the pin 29 of medium conversion and control chip DM9331A N2 is connected with the pin 20 of medium conversion and control chip DM9331A N3, the pin 37 of medium conversion and control chip DM9331A N2 is connected with the pin 21 of medium conversion and control chip DM9331A N3, and the pin 40 of medium conversion and control chip DM9331A N2 is connected with the pin 40 of medium conversion and control chip DM9331A N3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201398455U CN2857340Y (en) | 2005-12-16 | 2005-12-16 | Photoelectric converter of 650nm plastic fiber glass transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201398455U CN2857340Y (en) | 2005-12-16 | 2005-12-16 | Photoelectric converter of 650nm plastic fiber glass transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2857340Y true CN2857340Y (en) | 2007-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201398455U Expired - Fee Related CN2857340Y (en) | 2005-12-16 | 2005-12-16 | Photoelectric converter of 650nm plastic fiber glass transmission system |
Country Status (1)
| Country | Link |
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| CN (1) | CN2857340Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410505A (en) * | 2014-11-26 | 2015-03-11 | 北京中科德能科技有限公司 | Ethernet photo-dielectric converter |
-
2005
- 2005-12-16 CN CNU2005201398455U patent/CN2857340Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410505A (en) * | 2014-11-26 | 2015-03-11 | 北京中科德能科技有限公司 | Ethernet photo-dielectric converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090206 Address after: Zhuolu Development Zone, Hebei Province, China: 075600 Patentee after: Hebei wall semiconductor material Co., Ltd. Address before: No. 8-8, Weiyang Road, Jiangsu, Yangzhou Province, China: 225009 Patentee before: Huashan Photoelectric Co., Ltd., Jiangsu |
|
| ASS | Succession or assignment of patent right |
Owner name: HEBEI HUAERSEMICONDUCTOR MATERIALS CO., LTD. Free format text: FORMER OWNER: HUASHAN PHOTOELECTRIC CO., LTD., JIANGSU Effective date: 20090206 |
|
| ASS | Succession or assignment of patent right |
Owner name: HUASHAN PHOTOELECTRIC CO., LTD., JIANGSU Free format text: FORMER OWNER: HEBEI HUA ER SEMICONDUCTOR MATERIAL CO., LTD. Effective date: 20110908 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 075600 ZHANGJIAKOU, HEBEI PROVINCE TO: 225008 YANGZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110908 Address after: 225008 north side of Shuang Tong Road, Weiyang Economic Development Zone, Yangzhou, Jiangsu Patentee after: Huashan Photoelectric Co., Ltd., Jiangsu Address before: 075600 Zhuolu Development Zone, Hebei Province Patentee before: Hebei wall semiconductor material Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: YANGZHOU HUAYU PHOTOVOLTAIC MATERIAL CO., LTD. Free format text: FORMER OWNER: HUASHAN PHOTOELECTRIC CO., LTD., JIANGSU Effective date: 20111028 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 225008 YANGZHOU, JIANGSU PROVINCE TO: 225600 YANGZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111028 Address after: Gan duo industry of Gaoyou city in Jiangsu province Yangzhou City District 225600 Patentee after: Yangzhou HUAYU photovoltaic materials Co. Ltd. Address before: 225008 north side of Shuang Tong Road, Weiyang Economic Development Zone, Yangzhou, Jiangsu Patentee before: Huashan Photoelectric Co., Ltd., Jiangsu |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070110 Termination date: 20111216 |