CN2763820Y - Wave length converter for all optical network 650 nm information transmission system - Google Patents
Wave length converter for all optical network 650 nm information transmission system Download PDFInfo
- Publication number
- CN2763820Y CN2763820Y CNU200520069262XU CN200520069262U CN2763820Y CN 2763820 Y CN2763820 Y CN 2763820Y CN U200520069262X U CNU200520069262X U CN U200520069262XU CN 200520069262 U CN200520069262 U CN 200520069262U CN 2763820 Y CN2763820 Y CN 2763820Y
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- optical fiber
- main control
- control chip
- dm9331a
- circuit
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Abstract
The utility model relates to a wavelength converter of a 650 nm information transmission system of an all-optical network, particularly customer terminal equipment of an optical network. The utility model is mainly composed of a quartz optical fiber module and a plastic optical fiber module, wherein the TXEN terminal of each of the two modules is crossed and connected with the RXDV terminal mutually, and the RXD terminal is crossed and connected with the TXD terminal; the FXRD terminal and the FXTD terminal of each of the two modules are respectively connected with an external line; the OSCIN terminal of each of two main control chips DM9331A is connected with an external power supply which is of 50MHz. The utility model can respectively convert quartz optical fiber signals which are 1550 nm, 1310 nm and 850 nm to 650 nm plastic optical fiber signals. A plastic optical fiber network can be connected with a quartz optical fiber network of a backbone network by the utility model so a plastic optical fiber system can be communicated with a public information network mutually to proceed with the optical communication of a whole course network; therefore, an all-optical network is realized.
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 fibre 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 (hypervelocity) broadband network at a high speed of future generation with its good transparency, wavelength routing characteristic, compatibility and extensibility.In order to reach at user terminal, promptly last kilometer must convert existing 1550nm, 1310nm, 850nm silica fibre signal to 650nm plastic optical fiber signal respectively still with light transmission information, could further be transformed into user terminal then.
The utility model content
The utility model purpose is exactly the wavelength shifter of a kind of all optical network 650nm information transmission system that existing 1550nm, 1310nm, 850nm silica fibre signal and 650nm plastic optical fiber signal can be changed each other of design.
The utility model mainly is made up of silica fibre module and plastic optical fiber module, the main control chip of silica fibre module is DM9331A, the main control chip of plastic optical fiber module is DM9331A, the TXEN of two modules end and RXDV end intersects mutual connection, RXD holds with TXD holds and intersect mutual connection, FXRD end, the FXTD end of two modules are connected with outside line respectively, and the OSCIN end of two main control chip DM9331A all is connected on the external power supply of 50MHz.
The utility model main control chip DM9331A is a Micrel company product, and this device both can be used for the conversion of simple physics layer, can be used as comprehensive storage/transmission bridge circuit again.This family device advantage is as follows: realize that with minimum power consumption signal transmits; The packet tranmission techniques of application of advanced carries out 100BaseFX/100BaseTX to 100BaseFX/100BaseTX to be changed; Height interchangeability is good.Utilize this main control chip can realize single-chip, multiport solution.The utility model provides the clock source by the 50MHz crystal oscillating circuit for main control chip.Voltage conversion circuit comprises two parts, promptly 220V alternating voltage commentaries on classics+5V DC voltage and+5V DC voltage commentaries on classics+2.5V DC voltage.The former is in order to make this system can directly insert mains system, its output+5V voltage is uses such as reset circuit and optic module; Latter's conversion goes out+and 2.5V supplies with main control chip DM9331A.
The utility model can be with the conversion each other respectively of 1550nm, 1310nm, 850nm silica fibre signal and 650nm plastic optical fiber signal, plastic optical fiber network can be connected with silica fibre network on the major trunk roads by the utility model, make plastic optical fiber system and the common information net can intercommunication, carry out the optical communication intercommunication of full process and full network, make all-optical network become possibility.
The silica fibre module comprises main control chip DM9331A, the voltage conversion circuit that is connected with main control chip DM9331A, half full duplex change-over circuit, indicator light circuit, silica fibre interface circuit and 50MHz crystal oscillating circuit, voltage conversion circuit comprise the 220V alternating voltage transfer to+the 5V dc voltage circuit and+the 5V DC voltage transfers to+the 2.5V dc voltage circuit.
Optical module power supply road road, optical module direction converter, half full duplex change-over circuit, indicator light circuit, plastic optical fiber interface circuit that the plastic optical fiber module comprises main control chip DM9331A, is connected with main control chip DM9331A.
Description of drawings
Fig. 1 is a fundamental diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of silica fibre module.
Fig. 3 is the circuit theory diagrams of plastic optical fiber module.
Specific embodiment
As shown in Figure 1, the utility model mainly is made up of silica fibre module and plastic optical fiber module, the main control chip of silica fibre module is DM9331A (one), the main control chip of plastic optical fiber module is DM9331A (two), the TXEN of two modules end and RXDV end intersect mutual connection, RXD end and TXD to be held and intersects mutual connection, and the FXRD of two modules holds, FXTD holds and is connected with outside line respectively.The OSCIN end of two main control chip DM9331A all is connected on the external power supply of 50MHz.
As shown in Figure 2, the silica fibre module comprises main control chip DM9331A (), the voltage conversion circuit that is connected with main control chip DM9331A (), half full duplex change-over circuit, indicator light circuit, silica fibre interface circuit and 50MHz crystal oscillating circuit, voltage conversion circuit comprise the 220V alternating voltage transfer to+the 5V dc voltage circuit and+the 5V DC voltage transfers to+the 2.5V dc voltage circuit.
As shown in Figure 3, the plastic optical fiber module comprise main control chip DM9331A (two), the optical module that is connected with main control chip DM9331A (two) power supply road road, optical module direction converter, half full duplex change-over circuit, indicator light circuit, plastic optical fiber interface circuit.
The pin 17 of silica fibre module main control chip DM9331A (one) is connected with the pin 26 of plastic optical fiber module main control chip DM9331A (two), the pin 19 of silica fibre module main control chip DM9331A (one) is connected with the pin 28 of plastic optical fiber module main control chip DM9331A (two), the pin 20 of silica fibre module main control chip DM9331A (one) is connected with the pin 29 of plastic optical fiber module main control chip DM9331A (two), the pin 21 of silica fibre module main control chip DM9331A (one) is connected with the pin 37 of plastic optical fiber module main control chip DM9331A (two), the pin 24 of silica fibre module main control chip DM9331A (one) is connected with the pin 24 of plastic optical fiber module main control chip DM9331A (two), the pin 25 of silica fibre module main control chip DM9331A (one) is connected with the pin 25 of plastic optical fiber module main control chip DM9331A (two), the pin 26 of silica fibre module main control chip DM9331A (one) is connected with the pin 17 of plastic optical fiber module main control chip DM9331A (two), the pin 28 of silica fibre module main control chip DM9331A (one) is connected with the pin 19 of plastic optical fiber module main control chip DM9331A (two), the pin 29 of silica fibre module main control chip DM9331A (one) is connected with the pin 20 of plastic optical fiber module main control chip DM9331A (two), the pin 37 of silica fibre module main control chip DM9331A (one) is connected with the pin 21 of plastic optical fiber module main control chip DM9331A (two), and the pin 40 of silica fibre module main control chip DM9331A () is connected with the pin 40 of plastic optical fiber module main control chip DM9331A (two).
Claims (3)
1, the wavelength shifter of all optical network 650nm information transmission system, it is characterized in that mainly forming by silica fibre module and plastic optical fiber module, the main control chip of silica fibre module is DM9331A, the main control chip of plastic optical fiber module is DM9331A, the TXEN of two modules end and RXDV end intersects mutual connection, RXD holds with TXD holds and intersect mutual connection, FXRD end, the FXTD end of two modules are connected with outside line respectively, and the OSCIN end of two main control chip DM9331A all is connected on the external power supply of 50MHz.
2, according to the wavelength shifter of the described all optical network 650nm of claim 1 information transmission system, it is characterized in that the silica fibre module comprises main control chip DM9331A, the voltage conversion circuit that is connected with main control chip DM9331A, half full duplex change-over circuit, indicator light circuit, silica fibre interface circuit and 50MHz crystal oscillating circuit, voltage conversion circuit comprise the 220V alternating voltage transfer to+the 5V dc voltage circuit and+the 5V DC voltage transfers to+the 2.5V dc voltage circuit.
3,, it is characterized in that optical module power supply road road, optical module direction converter, half full duplex change-over circuit, indicator light circuit, plastic optical fiber interface circuit that the plastic optical fiber module comprises main control chip DM9331A, is connected with main control chip DM9331A according to the wavelength shifter of the described all optical network 650nm of claim 1 information transmission system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520069262XU CN2763820Y (en) | 2005-02-24 | 2005-02-24 | Wave length converter for all optical network 650 nm information transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520069262XU CN2763820Y (en) | 2005-02-24 | 2005-02-24 | Wave length converter for all optical network 650 nm information transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2763820Y true CN2763820Y (en) | 2006-03-08 |
Family
ID=36141363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200520069262XU Expired - Fee Related CN2763820Y (en) | 2005-02-24 | 2005-02-24 | Wave length converter for all optical network 650 nm information transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2763820Y (en) |
-
2005
- 2005-02-24 CN CNU200520069262XU patent/CN2763820Y/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 | ||
| 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 |