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Communication equipment interface and interface converter using the interface

A technology for interface converters and communication equipment, which is applied in the field of interface interconnection, can solve problems such as the lack of hot-swappable function at the serial port connector end, unfavorable equipment shape design, and large size of the serial port connector, so as to reduce the possibility of crosstalk and reduce Structural design complexity and the effect of saving the number of components

Inactive Publication Date: 2010-04-14
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current interface converter usually uses the serial port provided by the communication equipment for interface conversion. The more common serial port is a DB9 (standard communication interface) interface. Usually, the number of signal lines is 9 cores, which makes the level conversion circuit complicated. In actual use, some The signal line is an idle line and is in an idle state. Most communication devices use the receiving and sending signal lines to complete data exchange, so the cost of this type of interface is relatively high
In addition, due to the large size of the serial port connector of the interface converter connected to the serial port, it is not conducive to saving the appearance design of the device
Furthermore, since there are many active components in the level conversion circuit of the interface converter at present, which consume a large amount of current, the serial port connector does not have a hot-swappable function

Method used

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  • Communication equipment interface and interface converter using the interface
  • Communication equipment interface and interface converter using the interface
  • Communication equipment interface and interface converter using the interface

Examples

Experimental program
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Effect test

no. 1 example

[0049] The first embodiment: the interface converter in the present embodiment, the cable selects four-core flat cable for use, and the network port of the communication equipment corresponding to it is a 10 / 100M network port, and the line pair of sending and receiving data of the network port uses four lines 1, 2, 3, 6, and the remaining four lines 4, 5, 7, and 8 are idle, and are used as serial signal lines for serial signal connection. The interface converter adopts an optical isolator, and the output level of the level conversion circuit of the interface converter is logic level. Since the level conversion circuit is directly powered by the serial port signal line, one of the idle lines is used as an extension line.

[0050] Firstly, the implementation method of the interface converter is introduced.

[0051] figure 2 It is a schematic diagram of the appearance of the interface converter. The interface converter includes a USB interface connector 1, a cable 2 and a netw...

no. 2 example

[0057] The second embodiment: the interface converter in the present embodiment, the cable selects four-core cable as the signal line, and the communication equipment network port corresponding to it is a 10 / 100M network port, and the line pair of sending and receiving data of the network port uses four lines 1, 2, 3, 6, and the remaining four wires 4, 5, 7, 8 are idle and are used for serial port signal connection. The interface converter adopts an isolation transformer. For occasions requiring long-distance transmission, this embodiment provides RS232 level transmission mode. The level conversion circuit of the interface converter is powered by the communication device through the drive line.

[0058] Firstly, the implementation method of the interface converter is introduced.

[0059] Figure 7 It is a functional block diagram of the interface converter in this embodiment. The USB interface connector 1 includes a USB interface serial communication conversion module 311, w...

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Abstract

This invention provides an interface of communication equipment, comprising a net port processing circuit linked with net port signal wire, a serial port receiving and processing circuit to receive and send serial prot signal via net port free line. And the invention also provides an interface converter, which comprises outer device Interface connectors, cable and port connector linked in serial,wherein, the serial port connector including net port interface end, the cable linked with free line of net port via net port connector end and receiving-sending serial port signal. The invention actualizes multiuse of communication device net port and serial port to reduce the interface number of device and the volume of interface converter.

Description

technical field [0001] The invention relates to an interface interconnection technology between different devices in a communication system, in particular to an interface of a communication device and a serial port cable using the interface. Background technique [0002] In the communication system, due to the differences in the information format, information type and level of different devices, and because the electrical characteristics and transmission protocols of different types of interfaces are different, the data exchange between different devices needs to be converted accordingly. At present, interface conversion between different devices is usually implemented through an interface converter. figure 1 It is a physical picture of this type of interface converter. The interface converter usually includes an interface connector for connecting external devices. The interface connector currently used is usually USB (Universal Serial Bus, Universal Serial Bus), as well as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/10
Inventor 袁虎葛曙光侯必艺
Owner NEW H3C TECH CO LTD
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