Method and device for realizing communication between host machine and multiple optical modules

Abstract

The invention discloses a method and a communication device for realizing communication between a host machine and multiple optical modules. According to the device, micro control units (MCUs) of the optical modules are connected with the host machines through Internet integrated circuit (IIC) buses; the MCU of each optical module receives information sent by the host machine through the IIC bus and resolves an addressing byte; the resolved addressing byte is compared with a response address preset in the MCU in the optical module; if the resolved addressing byte is the same as the response address preset in the MCU in the optical module, a laser emission unit or a laser receiving unit in the optical module is controlled according to the received information; and the preset response addresses in different optical modules are different. The MCUs in the optical modules are used, so that the host machine can communicate with the MCUs through the IIC buses; therefore, the host machine can communicate with the optical modules respectively through the IIC buses according to the response addresses of the optical modules to respectively control the optical modules; no addressing module is used; the cost is reduced; and the speed of communication between the host and the optical modules is increased.

Description

technical field [0001] The invention relates to optical fiber communication technology, in particular to a communication method and device for a host and multiple optical modules. Background technique [0002] Currently, PON (Passive Optical Network, Passive Optical Network) has begun to become popular. in such as figure 1 In the PON optical fiber communication network system shown, OLT (Optical Line Terminator, optical line terminal) is usually set at the central office of the access network system of the optical fiber communication system; ONU (optical net unit, optical network unit) is usually set at the central office , that is, the user end or building; the Splitter is an optical splitter, and the optical splitter has an uplink optical interface (or common port) and several downlink optical interfaces (or optical splitter ports). Generally, there are 2N equal splitter ports. If the light intensity of the common port is 1, the light intensity of each splitter port is 1...

AI Technical Summary

Problems solved by technology

[0005] Although the method in the prior art can solve the communication problem between the host and multiple optical modules, it needs to add an addressing module, resulting in high cost, and because the information communicated between the host and the optical modules needs to be parsed by the addressing module, Causes communication speed to be affected

In addition, the protocol between the host and the addressing module is more complicated, and more complicated protocol conversion is required, resulting in a more complicated communication program between the host and the optical module

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