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Light-network card of light network 650nm information system

An information system, all-optical network technology, applied in the field of network equipment, can solve the problems of affecting transmission speed, being susceptible to external interference, information theft, etc., to achieve the effect of reducing costs

Inactive Publication Date: 2007-01-17
江苏华山光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing quartz optical fiber network information on the main line must undergo optical / electrical and electrical / optical conversion when it is connected to the user terminal. This conversion process not only affects the transmission speed, but also causes signal attenuation, information distortion, and is susceptible to external interference. prone to information theft

Method used

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  • Light-network card of light network 650nm information system
  • Light-network card of light network 650nm information system
  • Light-network card of light network 650nm information system

Examples

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Embodiment Construction

[0015] The voltage conversion circuit includes a +5V voltage power supply to +3.3V voltage power supply circuit and a +3.3V voltage power supply to +2.5V voltage power supply circuit, and filter analog power supply circuits and digital power circuit.

[0016] The IP100A main control chip is a single-chip, full-duplex, 10M / 100M adaptive Ethernet MAC+PHY, which conforms to the IEEE802.3 protocol, adapts to 100BASE-TX / 100BASE-FX / 10BASE-T, and has a 32-bit PCI interface. The chip is available in a 128-pin PQFP package.

[0017] The power supply circuit of the optical fiber module interface is connected to the +5V power supply voltage output terminal of the PCI interface through the filter circuit, and the +5V power supply input terminal of the voltage conversion circuit is connected to the A-side pins 5, 8, 61, 62 and B-side pin 5 of the PCI interface , 6, 61, 62.

[0018] Pin 1 and pin 9 of the optical fiber module interface are grounded, and pin 2 is connected to pins 36, 37, ...

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Abstract

The optical network card comprises: a PCI interface with a 32bits bus width and a +5V power supply; a voltage transforming circuit; an optic fiber interface; an EEPROM memory; a BOOTROM memory; a indicator for indicating the receiving and transmitting of data; a 25MHz crystal oscillator circuit for providing a clock source for the main control chip; and a IP100S main control chip. By the invention, the different optical sub-networks in WAM can be connected together.

Description

technical field [0001] The present invention relates to a network device, in particular to a user terminal device of an optical network, which is commonly known as the "last mile" user terminal device. Background technique [0002] The quartz optical fiber network information on the existing main line must undergo optical / electrical and electrical / optical conversion when it is connected to the user terminal. This conversion process not only affects the transmission speed, but also causes signal attenuation, information distortion, and is susceptible to external interference. It is also prone to information theft. [0003] In order to change the above-mentioned defects in the existing information transmission, an all-optical network is being studied. The all-optical network has become the next generation of high-speed (ultra-high-speed) broadband with its good transparency, wavelength routing characteristics, compatibility and scalability. The network's first choice. Conte...

Claims

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Application Information

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IPC IPC(8): H04L12/02H04B10/14H04B10/25H04B10/40
Inventor 乔桂兰徐蓉艳
Owner 江苏华山光电有限公司
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