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Monitoring device and method for working state of ONU (Optical Network Unit) transmitting end

A technology of working status and monitoring devices, which is applied in the field of optical communication networks, can solve problems such as misjudgment and high chip cost, and achieve the effects of strong anti-interference ability, simple and convenient monitoring steps, and easy industrial implementation

Active Publication Date: 2012-01-18
CHENGDU SUPERXON COMM TECH CO LTD
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  • Abstract
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Problems solved by technology

Although this method is mature and can be industrialized, the cost of this new laser driver chip is high, and it is only applicable to the transmitting end of the ONU optical module for closed-loop control of optical power.
However, at the transmitting end of the ONU optical module controlled by the optical power open-loop look-up method, since the optical power will change significantly with temperature changes, when the mirror current threshold set inside the chip is exceeded, misjudgment will occur

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  • Monitoring device and method for working state of ONU (Optical Network Unit) transmitting end
  • Monitoring device and method for working state of ONU (Optical Network Unit) transmitting end
  • Monitoring device and method for working state of ONU (Optical Network Unit) transmitting end

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Embodiment Construction

[0035] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0036] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0037] Below, the technical solution of the present invention will be described in detail in conjunction with the accompanying drawings.

[0038] like figure 1 As shown, it is a schematic diagram of the working mode of the ONU in the PON. Multiple ONUs are connected to one OLT through the optical distribution network, and the OLT sends enable signals to the transmitter enable pins of the optical signal transmission modules in diff...

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Abstract

The invention discloses a monitoring device and a monitoring method for a working state of an ONU (Optical Network Unit) transmitting end. Primarily, self-check is realized by using the strong function of a laser driving chip; each key device of the ONU transmitting end is monitored in steps by using a monitoring circuit consisting of VCC and GND necessary for a resistor and a comparator combining chip; meanwhile, duration of an enabling signal is monitored; and finally, an and operation is performed by an and gate in a unified way to fulfill the aim of completely, effectively and accurately monitoring the working state of the ONU transmitting end. The method has simple steps and is convenient to implement; normal working of the ONU in a PON (Passive Optical Network) is guaranteed; meanwhile, since the conventional equipment is fully utilized, the cost is low, and maintenance and industrial production are facilitated.

Description

technical field [0001] The present invention relates to optical communication network technology, in particular to a device and method for monitoring the working state of an ONU (Optical Network Unit, Optical Network Unit) transmitter. Background technique [0002] The transmission lines used in the traditional communication field are all copper core cables, which have low transmission efficiency and poor anti-electromagnetic interference ability. Due to the characteristics of high transmission efficiency and strong anti-electromagnetic interference ability of optical fiber, with the improvement of communication transmission rate and the improvement of modern manufacturing process, the cost of optical fiber manufacturing has been reduced, and more and more modern communication fields use optical fiber for communication. Transmission of Information. The optical communication network is connected to the access network of the user terminal, and can be divided into AON (Act...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/08H04B10/077H04B10/079
Inventor 余涛徐元覃岭
Owner CHENGDU SUPERXON COMM TECH CO LTD
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