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Ultralow speed small form pluggable (SFP) optical module

An optical module and ultra-low-speed technology, applied in the field of communication, can solve the problems of low signal transmission rate, level difference interconnection compatibility, etc., and achieve the effect of convenient procurement

Pending Publication Date: 2017-10-31
CHENGDU GIGAC TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the photoelectric conversion equipment for power control and industrial control, we will find a problem. The transmission rate of power control and industrial control signals is very low, some cases are several megabits, even hundreds of Kbps, but our conventional SFP optical Module, the lowest rate can only be about 50Mbps, which is mainly limited by the bandwidth limit of the optical receiving device and limiting amplifier used in the optical module
Moreover, many photoelectric conversion devices such as RS232 and RS485 are used in the field of power control and industrial control. The supporting signals are generally LVTTL level, while conventional SFP optical modules are generally CML and LVPECL signal levels. The difference in level leads to interconnection compatibility. sexual problems

Method used

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  • Ultralow speed small form pluggable (SFP) optical module
  • Ultralow speed small form pluggable (SFP) optical module

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, the ultra-low-speed SFP optical module disclosed by the present invention includes: the optical receiver is connected to the comparator, the comparator is connected to the processor, the processor is connected to the logic circuit, the logic circuit is connected to the optical transmitter, and the processor, the comparator, and the logic circuit are all Connect the golden finger plug; the optical receiver adopts a single PIN optical receiver, the processor includes an MCU, the logic circuit includes a NAND logic chip, and the comparator adopts a high-speed comparator.

[0022] Such as figure 2 As shown, the optical transmitter includes an APC circuit, and the APC circuit includes: the reference voltage VREF2.0 is connected to th...

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PUM

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Abstract

The invention discloses an ultralow speed small form pluggable (SFP) optical module. The optical module comprises an optical receiver, a comparator, a processor, a logical circuit, and an optical transmitter, wherein the optical receiver is connected with the comparator, the comparator is connected with the processor, the processor is connected with the logical circuit, the logical circuit is connected with the optical transmitter, and the processor, the comparator, and the logical circuit are all connected with an edge connector. The ultralow speed SFP optical module is applicable to power control and industrial control related ultralow speed signal transmission and photoelectric conversion devices, supports an I2C communication protocol, and supports a function of monitoring a voltage and temperature of the optical module and a power of a sending terminal.

Description

technical field [0001] The invention relates to communication, in particular to an ultra-low-speed SFP optical module. Background technique [0002] SFP is the abbreviation of SMALL FORM PLUGGABLE, which can be simply understood as an upgraded version of GBIC. SFP optical modules are widely used in the field of optical fiber communication. According to the speed, the common ones are 155M / 622M / 1.25G / 2.125G / 4.25G / 8G / 10G. These SFP optical modules can be found everywhere on Ethernet and telecom network equipment. However, in the photoelectric conversion equipment for power control and industrial control, we will find a problem. The transmission rate of power control and industrial control signals is very low, some cases are several megabits, even hundreds of Kbps, but our conventional SFP optical The minimum rate of the module can only be about 50Mbps, which is mainly limited by the bandwidth limitation of the optical receiving device and the limiting amplifier used in the op...

Claims

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Application Information

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IPC IPC(8): H04B10/40
CPCH04B10/40
Inventor 廖强
Owner CHENGDU GIGAC TECH CO LTD
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