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External serial port networked server

A server and external technology, applied in the field of networked servers, can solve the problems of limited extension distance, difficult implementation, heavy wiring workload, etc., and achieve the effect of increasing equipment reliability and saving communication costs

Inactive Publication Date: 2009-12-23
CHENGDU ZHONGSHAN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, in environmental protection, electric power, industrial control, security and other industries, a large number of computer systems are used, and Ethernet is widely deployed for computer networking. Therefore, Ethernet has become a common interface method in the existing environment, but a large number of Some electronic equipment and instruments are designed to communicate only through the RS232 serial port. When the electronic equipment, instrument and control computer are not in the same place, it is necessary to use a way to network the electronic equipment and instrument with the computer. , the method of extending the serial port line is usually adopted, but this method generally has the problems of heavy wiring workload and difficult implementation, and the extension distance is also limited

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  • External serial port networked server

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Embodiment

[0018] Such as figure 1 As shown, the external serial port networking server is mainly composed of Ethernet PHY, the Ethernet PHY is an Ethernet physical layer, and an Ethernet interface connected to the Ethernet PHY. Power processing module, UART interface, EEPROM memory and SRAM memory, described EEPROM memory is a kind of electric erasable programmable read-only memory, namely a kind of memory chip that data is not lost after power failure, EEPROM memory can be on computer or Erase the existing information on the special equipment, reprogram, generally all are plug and play, the SRAM memory is a synchronous dynamic random access memory, which is the memory needed by our PC or embedded system CPU, the Ethernet PHY They are also connected to the CPU and the power processing module respectively. For the convenience of users, the device also includes a UART interface. The UART interface is a universal asynchronous receiving / sending device. It is a chip with parallel input and ...

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Abstract

The invention discloses an external serial port networked server, mainly comprising an Ethernet PHY and an Ethernet interface connected with the Ethernet PHY, and also comprising a CPU and a power processing module, a UART interface, an EEPROM memory and an SRAM memory, which are respectively connected with the CPU; wherein, the Ethernet PHY is connected with the CPU and the power processing module respectively; the power processing module is also provided with a power interface and a watchdog circuit which is directly connected with the CPU. The server not only can realize network functions for the serial devices of the users easily, but also is simple, easy to use, reliable and convenient.

Description

technical field [0001] The invention relates to a network server, in particular to an external serial port network server. Background technique [0002] At present, in environmental protection, electric power, industrial control, security and other industries, a large number of computer systems are used, and Ethernet is widely deployed for computer networking. Therefore, Ethernet has become a common interface method in the existing environment, but a large number of Some electronic equipment and instruments are designed to communicate only through the RS232 serial port. When the electronic equipment, instrument and control computer are not in the same place, it is necessary to use a way to network the electronic equipment and instrument with the computer. , Usually the way of extending the serial port line is adopted, but this way generally has the problems of heavy wiring workload and difficult implementation, and the extension distance is also limited. Contents of the in...

Claims

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Application Information

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IPC IPC(8): G06F1/16H04L12/02
Inventor 李强
Owner CHENGDU ZHONGSHAN SCI & TECH