QSFP28 optical module management method

A management method and technology for optical modules, applied in electrical digital data processing, electromagnetic transceivers, instruments, etc., can solve the problems of increasing R&D costs and R&D cycles, increasing the difficulty of layout wiring, etc., to save development costs and cycles. Reduce complexity, manage flexible effects

Inactive Publication Date: 2018-05-18
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This method can realize the management of QSFP28 optical modules through smbus and IO interfaces, but it will occupy the IO interfaces of the host, especially when there are multiple QSFP28 optical Signals increase the difficulty of layout and wiring, and greatly increase the R&D cost and R&D cycle

Method used

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  • QSFP28 optical module management method

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Embodiment Construction

[0017] The content of the present invention is described in more detail below:

[0018] The QSFP28 optical module management method proposed by the present invention is mainly composed of host, QSFP28 optical module and PCA9554 chip, such as figure 1 shown. The smbus address of the QSFP28 optical module in the system defaults to 0xa0. Since the PCA9554 chip and the QSFP28 optical module are connected to the same smbus bus, it is necessary to set the smbus address of the PCA9554 chip to be different from that of the QSFP28 optical module in the hardware circuit. In addition, Modsel, Reset, and LPMode of the QSFP28 optical module are input signals, and ModPrs and Int are output signals. Therefore, the host needs to configure IO0-2 of the PCA9554 chip as an output, and configure IO3-4 as an input.

[0019] The specific process is as follows:

[0020] 1) The ModPrs signal is the in-position signal of the QSFP28 optical module. When the optical module is in position, the signal i...

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Abstract

The invention provides a QSFP28 optical module management method, and belongs to the technical field of server data transmission management. According to the method, a smbus interface of a PCA9554 chip is mounted in a smbus bus of a host, and five IO signals are provided for connecting low speed signals of a QSFP28 optical module; the host accesses PCA9554 through the smbus bus, so that the QSFP28optical module is managed. The method has the advantages of being flexible in management, and capable of reducing complexity of arrangement of wires of layout and saving equipment development cycle and cost.

Description

technical field [0001] The invention relates to server data transmission management technology, in particular to a QSFP28 optical module management method. Background technique [0002] In modern society, all kinds of network data are growing explosively, so the requirements for server data transmission speed are also getting higher and higher. As a transmission method with fast transmission speed and high stability, the optical module has been widely used in servers. The optical modules currently used in servers have been gradually upgraded from the original QSFP (1Gb / s) to QSFP+ (10Gb / s), and recently the faster QSFP28 (28Gb / s). As the speed of optical modules increases, their management methods become more complex. [0003] For the management of the QSFP28 module, the existing method is that the host manages the registers of the QSFP28 optical module through the smbus interface, and manages the five low-speed signals of Modsel, Reset, LPMode, ModPrs and Int of the QSFP2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/20H04B10/40
CPCG06F13/20H04B10/40
Inventor 邓文博
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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