CN215682291U - Optical signal transmission device based on PON technology - Google Patents
Optical signal transmission device based on PON technology Download PDFInfo
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- CN215682291U CN215682291U CN202121865756.4U CN202121865756U CN215682291U CN 215682291 U CN215682291 U CN 215682291U CN 202121865756 U CN202121865756 U CN 202121865756U CN 215682291 U CN215682291 U CN 215682291U
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Abstract
The utility model provides an optical signal transmission device based on a PON technology, which comprises an optical splitting module, a direct-current power supply splitting module and an interface module; the interface module comprises an optical signal input interface, an optical signal output interface, a power input interface and a power output interface; the input end of the optical splitting module is connected with the optical signal input interface, and the output end of the optical splitting module is connected with the optical signal output interface; the input end of the direct current power supply shunting module is connected with the power supply input interface, and the output end of the direct current power supply shunting module is connected with the power supply output interface. The utility model adopts the light splitting module and the direct current power supply splitting module to respectively convert the input optical signal and the power supply signal into a plurality of paths of optical signals and power supply signals for output, realizes the power supply of the terminal equipment of the optical distribution network while transmitting the optical signals, and greatly facilitates the use of the equipment.
Description
Technical Field
The utility model relates to the technical field of passive optical networks, in particular to an optical signal transmission device based on a PON technology.
Background
A Passive Optical Network (PON) is a single-fiber bidirectional optical access network that employs a point-to-multipoint architecture. The PON system is composed of an Optical Line Terminal (OLT) at a central office end, an Optical Distribution Network (ODN), and an optical network unit/optical network terminal (ONU/ONT) at a user side. The term "passive" means that the ODN does not include any active electronic device or electronic power source, and all of them are composed of passive devices such as an optical splitter. At present, when optical signals are transmitted to terminal equipment at a user side through an optical distribution network, a power supply needs to be configured for each terminal equipment independently, so that the equipment is complex in wiring and inconvenient to use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that when an optical signal is transmitted to terminal equipment at a user side through an optical distribution network, a power supply needs to be configured for each terminal equipment independently.
The utility model provides an optical signal transmission device based on a PON technology, which comprises an optical splitting module, a direct current power supply splitting module and an interface module;
the interface module comprises an optical signal input interface, an optical signal output interface, a power input interface and a power output interface;
the input end of the optical splitting module is connected with the optical signal input interface, and the output end of the optical splitting module is connected with the optical signal output interface;
the input end of the direct current power supply shunting module is connected with the power supply input interface, and the output end of the direct current power supply shunting module is connected with the power supply output interface.
Optionally, the optical splitting module includes at least one optical splitter, the number of the optical signal input interfaces is the same as the number of the input ends of the optical splitter, the number of the optical signal output interfaces is the same as the number of the output ends of the optical splitter, the input end of each optical splitter is connected to the corresponding optical signal input interface, and the output end of each optical splitter is connected to the corresponding optical signal output interface.
Optionally, the dc power supply shunting module includes at least one power shunt, the quantity of power input interface with the quantity of the input of power shunt is the same, the quantity of power output interface with the quantity of the output of power shunt is the same, every the input of power shunt is respectively with the power input interface connection that corresponds, every the output of power shunt is respectively with the power output interface connection that corresponds.
Optionally, the dc power supply shunting module further includes at least one voltage converter, an input end of the voltage converter is connected to the power input interface, and an output end of the voltage converter is connected to an input end of the power supply shunt.
Optionally, the dc power supply shunting module further includes an overvoltage protection circuit and an overcurrent protection circuit, and the overvoltage protection circuit and the overcurrent protection circuit are respectively connected to the power supply shunt.
Optionally, the dc power supply shunting module further includes a signal indicator light for indicating the operating state of the power supply shunt.
Optionally, the number of the optical signal output interfaces is the same as that of the power output interfaces, and any one of the optical signal output interfaces and any one of the power output interfaces are respectively connected to the optical fiber and the power line of the feed optical cable.
The utility model adopts the light splitting module and the direct current power supply splitting module to respectively convert the optical signal and the power supply signal input through the optical signal input interface and the power supply input interface into a plurality of paths of optical signals and a plurality of paths of power supply signals and output the optical signals and the power supply signals through the optical signal output interface and the power supply output interface. Therefore, the power supply of the terminal equipment of the optical distribution network is realized while the optical signal is transmitted, and the equipment is greatly convenient to use.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an optical signal transmission apparatus based on PON technology according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a dc power shunting module according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
Fig. 1 is a schematic structural diagram of an optical signal transmission apparatus based on PON technology according to an embodiment of the present invention. As shown in fig. 1, the optical signal transmission apparatus 100 based on the PON technology may include an optical splitter module 110, a dc power splitter module 120, and an interface module 130.
The interface module 130 may include an optical signal input interface 131, an optical signal output interface 132, a power input interface 133, and a power output interface 134. The optical signal input interface 131 and the optical signal output interface 132 may adopt an SC interface to receive or transmit an optical signal.
The input end of the optical splitter module 110 may be connected to the optical signal input interface 131, and the output end of the optical splitter module 110 may be connected to the optical signal output interface 132. The input terminal of the dc power shunting module 120 may be connected to the power input interface 133, and the output terminal of the dc power shunting module 120 may be connected to the power output interface 134.
It should be noted that the optical signal input interface 131 can be connected to the optical line terminal OLT at the central office end of the PON system and the optical splitting module 110 of the apparatus, so that the optical signal sent by the OLT is accessed into the optical splitting module 110, and the optical splitting module 110 is used to split one optical signal into multiple optical signals for output. Accordingly, the optical splitting module 110 of the apparatus and the optical network terminal on the subscriber side may be connected through the optical signal output interface 132, so as to transmit the multiple optical signals to multiple terminal devices on the subscriber side.
It is understood that the optical splitter module 110 may have a plurality of input terminals and a plurality of output terminals, and each input terminal is connected to one optical signal input interface 131. Accordingly, each output is connected to a respective optical signal output interface 132. Wherein, the number of the input ends and the number of the output ends can be in a direct proportion relation. For example, the ratio may be 1:8,1:16, or 1:32, etc., which is not limited in this application.
In a possible implementation manner of the present invention, as shown in fig. 2, the optical splitting module 110 may include at least one optical splitter, where the number of the optical signal input interfaces 131 is the same as the sum of the number of the input ends of all the optical splitters, the number of the optical signal output interfaces 132 is the same as the sum of the number of the output ends of all the optical splitters, the input end of each optical splitter is connected to one corresponding optical signal input interface 131, and the output end of each optical splitter is connected to one corresponding optical signal output interface 132.
For example, the optical splitting module 110 includes 4 optical splitters, each of which includes 1 input terminal and 16 output terminals, that is, each optical splitter can split 1 optical signal into 16 optical signals for output. The number of the optical signal input interfaces 131 may be 4, the number of the optical signal output interfaces 132 may be 64, the optical signal input interfaces 131 are connected to the input ends of the respective optical splitters in a one-to-one correspondence, and the optical signal output interfaces 132 are connected to the output ends of the respective optical splitters in a one-to-one correspondence.
It should be noted that the dc power shunting module 120 is connected to the dc power through the power input interface 133, so as to decompose the 1-channel dc power signal into multiple channels of dc power signals, and output the signals through the power output interface 134, thereby supplying power to multiple terminal devices on the user side.
It is understood that the dc power shunting module 120 may have a plurality of input terminals and a plurality of output terminals, each of the input terminals being connected to one of the power input interfaces 133. Correspondingly, each output terminal is connected to a respective power output interface 134. Wherein, the number of the input ends and the number of the output ends can be in a direct proportion relation. For example, the ratio may be 1:8,1:16, or 1:32, etc., which is not limited in this application.
In a possible implementation manner of the present invention, as shown in fig. 2, the dc power supply splitting module 120 may include at least one power supply splitter 121, where the number of the power supply input interfaces 133 is the same as the sum of the numbers of the input ends of all the power supply splitters 121, the number of the power supply output interfaces 132 is the same as the sum of the numbers of the output ends of all the power supply splitters 121, the input end of each power supply splitter 121 is connected to a corresponding power supply input interface 133, and the output end of each power supply splitter 121 is connected to a corresponding power supply output interface 134.
For example, the dc power splitting module 120 includes 2 power splitters 121, and each power splitter 121 includes 1 input terminal and 32 output terminals, i.e., each power splitter 121 can split a 1-channel power signal into 32-channel power signals for output. The number of the power input interfaces 133 may be 2, the number of the power output interfaces 134 may be 64, the power input interfaces 133 are connected to the input ends of the respective power splitters 121 in a one-to-one correspondence, and the power output interfaces 134 are connected to the output ends of the respective power splitters 121 in a one-to-one correspondence.
Optionally, the dc power shunting module 120 may further include a voltage converter 122. As shown in fig. 2, the input terminal of the voltage converter 122 is connected to the power input interface 133, and the output terminal of the voltage converter 122 is connected to the input terminal of the power splitter 121.
It will be appreciated that the dc power is typically converted from ac power. Therefore, in order to enable the present invention to directly use 220V ac power as a power supply, the voltage converter 122 may be integrated in the dc power shunting module 120, and the voltage converter 122 may convert the 220V ac power into dc power with a specific voltage, such as 48V dc power, and the like, which is not limited in this application.
Optionally, the dc power shunting module 120 may further include an overvoltage protection circuit 123 and an overcurrent protection circuit 124, where the overvoltage protection circuit 123 and the overcurrent protection circuit 124 are respectively connected to the power shunt 121, so as to perform overvoltage protection and overcurrent protection on the power shunt 121, thereby effectively ensuring reliability of power output.
Optionally, the dc power shunting module 120 may further include a signal indicator 125 for indicating an operation state of the power shunt 121. For example, the signal indicator light 125 may be normally on when the power splitter 121 is normal, and the signal indicator light 125 may be flashing when the power splitter 121 is abnormal. The signal indicator light may be an LED light, which is not limited in this application.
It should be noted that, in order to ensure that each output optical signal can output one path of dc power synchronously, the number of the optical signal output interfaces 132 and the number of the power output interfaces 134 may be the same, and any optical signal output interface 132 and any power output interface 134 form a connection port, which is respectively connected to the optical fiber and the power line of the feed optical cable, so as to transmit the optical signal and the power signal to a plurality of terminal devices at the user side at the same time.
In the embodiment of the utility model, the light splitting module and the direct current power supply splitting module are adopted to respectively convert the optical signals and the power supply signals input through the optical signal input interface and the power supply input interface into the multiple paths of optical signals and the multiple paths of power supply signals, and the optical signals and the power supply signals are output through the optical signal output interface and the power supply output interface. Therefore, the power supply of the terminal equipment of the optical distribution network is realized while optical signals are transmitted, the power supply problem of multiple equipment is solved by using only one power supply, and the equipment is greatly convenient to use.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Claims (7)
1. An optical signal transmission apparatus based on a PON technology, comprising: the system comprises a light splitting module, a direct current power supply shunting module and an interface module;
the interface module comprises an optical signal input interface, an optical signal output interface, a power input interface and a power output interface;
the input end of the optical splitting module is connected with the optical signal input interface, and the output end of the optical splitting module is connected with the optical signal output interface;
the input end of the direct current power supply shunting module is connected with the power supply input interface, and the output end of the direct current power supply shunting module is connected with the power supply output interface.
2. A PON technology-based optical signal transmission apparatus as claimed in claim 1, wherein: the optical splitting module comprises at least one optical splitter, the number of the optical signal input interfaces is the same as that of the input ends of the optical splitter, the number of the optical signal output interfaces is the same as that of the output ends of the optical splitter, the input end of each optical splitter is connected with the corresponding optical signal input interface, and the output end of each optical splitter is connected with the corresponding optical signal output interface.
3. A PON technology-based optical signal transmission apparatus as claimed in claim 1, wherein: the DC power supply shunting module comprises at least one power supply shunt, the quantity of the power supply input interface is the same as that of the input end of the power supply shunt, the quantity of the power supply output interface is the same as that of the output end of the power supply shunt, every input end of the power supply shunt is connected with the corresponding power supply input interface, every output end of the power supply shunt is connected with the corresponding power supply output interface.
4. A PON technology-based optical signal transmission apparatus as claimed in claim 3, wherein: the direct current power supply shunting module further comprises at least one voltage converter, the input end of the voltage converter is connected with the power supply input interface, and the output end of the voltage converter is connected with the input end of the power supply shunt.
5. A PON technology-based optical signal transmission apparatus as claimed in claim 3, wherein: the direct-current power supply shunting module further comprises an overvoltage protection circuit and an overcurrent protection circuit, and the overvoltage protection circuit and the overcurrent protection circuit are respectively connected with the power supply shunt.
6. A PON technology-based optical signal transmission apparatus as claimed in claim 3, wherein: the direct current power supply shunt module further comprises a signal indicator light for indicating the working state of the power supply shunt.
7. A PON technology-based optical signal transmission apparatus as claimed in any one of claims 1 to 6, wherein: the number of the optical signal output interfaces is the same as that of the power supply output interfaces, and any one of the optical signal output interfaces and any one of the power supply output interfaces are respectively connected with an optical fiber and a power line of a feed optical cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121865756.4U CN215682291U (en) | 2021-08-10 | 2021-08-10 | Optical signal transmission device based on PON technology |
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| CN202121865756.4U CN215682291U (en) | 2021-08-10 | 2021-08-10 | Optical signal transmission device based on PON technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041073A1 (en) * | 2022-08-24 | 2024-02-29 | 华为技术有限公司 | Optical splitter and optical network system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041073A1 (en) * | 2022-08-24 | 2024-02-29 | 华为技术有限公司 | Optical splitter and optical network system |
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