Signal multiplexing circuit and device based on optical module clock signal and state detection
A signal multiplexing and clock signal technology, applied in the optical field, can solve problems such as the inability to directly obtain clock signals
Active Publication Date: 2021-05-14
SONT TECH (SHEN ZHEN) LTD +1
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[0004] The main purpose of the present invention is to provide a signal multiplexing circuit based on the optical module clock signal and state detection, aiming to solve the technical problem that the optical module test cannot directly obtain the clock signal for testing in the prior art
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[0035] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the figure). Relative positional relationsh...
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The invention relates to the field of optical technology, and discloses a signal multiplexing circuit and device based on an optical module clock signal and state detection. The circuit includes clock recovery circuit, status output circuit, signal multiplexing circuit and signal demultiplexing circuit. The clock signal and optical module insertion status information are combined, and the signal demultiplexing circuit of the test board separates the clock signal and the optical module insertion status signal, so as to perform automatic testing according to the optical module insertion status signal, and the clock signal is used as the clock trigger source of the sampling oscilloscope Signal output to test related parameters, realize the optical module test based on the built-in clock signal output of the optical module, reduce the cost of the test equipment and do not change the original function of the optical module gold finger, and maintain the optical module to the existing industry standard agreement compatibility.
Description
technical field [0001] The invention relates to the field of optical technology, in particular to a signal multiplexing circuit and device based on an optical module clock signal and state detection. Background technique [0002] The optical module is one of the important components of the optical transmission system. Optical / electrical eye diagram related parameters need to be tested during R&D, production and commissioning of optical modules. At present, the optical module test can usually use the clock signal output by the bit error tester to trigger the sampling oscilloscope to perform the eye pattern sampling test. When the signal source is not the bit error tester, the clock signal cannot be obtained directly for testing. After some optical modules use digital signal processors to convert the signal rate, due to the retiming of the output optical / electrical signals, it is no longer possible to use the clock signal output by the bit error meter to trigger the sampling ...
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IPC IPC(8): H04B10/079
CPCH04B10/0795
Inventor 秦伟东郑波孙鼎过开甲张伟魏志坚
Owner SONT TECH (SHEN ZHEN) LTD