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Method for on-line identifying small packaged hot connecting and disconnecting module

An electrical module, hot-swappable technology, applied in electrical components, electromagnetic wave transmission systems, line transmission components and other directions, can solve the problems of increasing the processing difficulty of SFP electrical modules, reducing the reliability of SFP electrical modules, and increasing the cost of SFP electrical modules. , to achieve simple and reliable online identification, increase processing difficulty, and reduce reliability.

Inactive Publication Date: 2007-01-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The method for identifying the SFP electrical module in the above-mentioned prior art introduces the active device E2PROM into the SFP electrical module, which increases the processing difficulty of the SFP electrical module on the one hand, prolongs the delivery cycle, and also increases the cost of the SFP electrical module ; On the other hand, due to the addition of hardware in the SFP electrical module, the reliability of the SFP electrical module is reduced

Method used

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  • Method for on-line identifying small packaged hot connecting and disconnecting module
  • Method for on-line identifying small packaged hot connecting and disconnecting module
  • Method for on-line identifying small packaged hot connecting and disconnecting module

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Embodiment Construction

[0052] The core idea of ​​the present invention is: set and short-circuit the first detection pin and the second detection pin in the SFP electrical module; when the SFP module is inserted on the board, the first detection pin and the second detection pin of the SFP The pins are respectively connected to the sending detection signal pin and the receiving detection signal pin of the control unit which provide and detect the preset detection signal through the preset PCB connection line on the single board. The control unit sends a preset detection signal to the first detection pin of the SFP module through the sending detection signal pin, and judges whether the return signal received by the receiving detection signal pin is a preset detection signal, and if so, the currently inserted The SFP module is an SFP electrical module; otherwise, the currently inserted SFP module is not an SFP electrical module.

[0053] The first detection pin of the above-mentioned SFP module is an i...

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Abstract

This invention discloses a method for identifying on-line SFP electric modules, which connects the first and second test pins of a SFP module in short-circuit, when a control unit of a monoboard the SFP module places tests that the module has been plugged in the monoboard, said method includes the following steps: A, the control unit transmits a preset test signal to the first test pin of the SFP module by the pin of its own transmitting test signals, B, the control unit receives the fed back signals from the second test pin of the module by its pin receiving test signals and judges if said fed back signal is the preset signal, if so, it judges that the SFP module plugged in the monoboard current is an electric module, otherwise, it's not.

Description

technical field [0001] The invention relates to an interface module identification technology, in particular to a method for online identification of small-package hot-swappable (SFP) electrical modules. Background technique [0002] In the field of high-speed optical interface and electrical interface transmission, SFP modules have been widely used as optical / electrical transceiver modules. SFP modules have the advantages of small size and support for hot swapping, including SFP electrical modules and SFP optical modules. Generally, the SFP module and the control unit are plugged into the same board, and the control unit controls the sending and receiving of the SFP module. [0003] The SFP module provides a custom pin, the MOD-DEF0 pin, which is generally used to output the presence signal. The MOD-DEF0 pin is grounded inside the module, and a pull-up resistor, such as a 10K pull-up resistor, is connected outside the module. After the SFP module is inserted into a board,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B3/46H04B10/08
Inventor 兰鹏余明李刚
Owner HUAWEI TECH CO LTD
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