CN220307213U - Photoelectric conversion driving circuit, photoelectric conversion driving device and ONU equipment - Google Patents
Photoelectric conversion driving circuit, photoelectric conversion driving device and ONU equipment Download PDFInfo
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- CN220307213U CN220307213U CN202322054211.0U CN202322054211U CN220307213U CN 220307213 U CN220307213 U CN 220307213U CN 202322054211 U CN202322054211 U CN 202322054211U CN 220307213 U CN220307213 U CN 220307213U
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Abstract
The utility model relates to an optical communication technology, and discloses a photoelectric conversion driving circuit, a photoelectric conversion driving device and ONU equipment, which comprises a PON chip, a multiplexing/demultiplexing chip, an analog switch, a first photoelectric transceiver circuit and a second photoelectric transceiver circuit, wherein a control output end of the PON chip is respectively and electrically connected with the multiplexing/demultiplexing chip and a control end of the analog switch, a data transmission end of the PON chip is electrically connected with a public end of the multiplexing/demultiplexing chip, a signal transmission end of the PON chip is electrically connected with a public end of the analog switch, a first transmission end and a second transmission end of the multiplexing/demultiplexing chip are respectively and electrically connected with a data transmission end of the first photoelectric transceiver circuit and a data transmission end of the second photoelectric transceiver circuit, and a first selection channel and a second selection channel of the analog switch are respectively and electrically connected with the signal transmission ends of the first photoelectric transceiver circuit and the second photoelectric transceiver circuit. The present utility model aims to provide a photoelectric conversion drive circuit supporting a plurality of PON modes.
Description
Technical Field
The present utility model relates to the field of optical communications technologies, and in particular, to a photoelectric conversion driving circuit, a photoelectric conversion driving device, and an ONU (Optical Network Unit ) device.
Background
The PON (Passive Optical Network ) gateway units in the market at present only support the coexistence of EPON and GPON modes, but cannot support other PON modes (such as XGPON/XGSPON modes) at the same time, mainly because the photoelectric conversion driving chip and BOSA (Bi-Directional Optical Sub-Assembly) are not compatible. Because the general ONU equipment only supports a single mode, when the network is upgraded and reformed, when the photoelectric access port of the ONU equipment needs to be upgraded from an EPON/GPON mode to other high-speed PON modes (such as an XGSPON or a 10GEPON mode), the whole ONU equipment needs to be replaced or scrapped, so that resources are wasted greatly, and the equipment use cost of a user is increased.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present utility model and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The utility model provides a photoelectric conversion driving circuit, a photoelectric conversion driving device and ONU equipment, and aims to provide a photoelectric conversion driving circuit supporting a plurality of PON modes.
In order to achieve the above objective, the present utility model provides a photoelectric conversion driving circuit, which includes a PON chip, a multiplexing/demultiplexing chip, an analog switch, a first photoelectric transceiver circuit and a second photoelectric transceiver circuit, wherein a control output end of the PON chip is electrically connected to the multiplexing/demultiplexing chip and a control end of the analog switch, a data transmission end of the PON chip is electrically connected to a common end of the multiplexing/demultiplexing chip, a signal transmission end of the PON chip is electrically connected to a common end of the analog switch, a first transmission end and a second transmission end of the multiplexing/demultiplexing chip are electrically connected to a data transmission end of the first and second photoelectric transceiver circuits, and a first and second selection channel of the analog switch is electrically connected to a signal transmission end of the first and second photoelectric transceiver circuits, respectively;
wherein, the PON mode applied by the first optical transceiver circuit is different from the PON mode applied by the second optical transceiver circuit.
Optionally, the PON mode applied by the first optical transceiver circuit is a GPON/EPON mode; the PON mode applied by the second optical transceiver circuit is either one of XGPON, XGSPON, NGPON and 10GEPON modes.
Optionally, the photoelectric conversion driving circuit further includes a communication module, and the communication module is electrically connected to the communication end of the PON chip.
Optionally, the photoelectric conversion driving circuit further includes a power supply module, wherein a first output end of the power supply module is electrically connected with the first photoelectric transceiver circuit through the first switch, a second output end of the power supply module is electrically connected with the second photoelectric transceiver circuit through the second switch, a third output end of the power supply module is electrically connected with a power supply end of the PON chip, and control ends of the first switch and the second switch are electrically connected with the PON chip.
The present utility model further proposes a photoelectric conversion driving device including the photoelectric conversion driving circuit described above.
The utility model further provides ONU equipment comprising the photoelectric conversion driving device.
Optionally, the ONU device further includes an optical network detection device, and the optical network detection device is electrically connected to the photoelectric conversion driving device.
The technical scheme of the utility model has the beneficial effects that: by selecting different photoelectric transceiver circuits, the photoelectric conversion driving circuit can adapt to different PON mode requirements. The flexibility enables the photoelectric conversion driving circuit to operate in different optical fiber network environments and meet the requirements of different application scenes. Therefore, the photoelectric conversion driving circuit has multimode support and free switching capability, so that ONU equipment provided with the photoelectric conversion driving circuit can adapt to different access modes, and can be flexibly used and recycled in various occasions. The development cost of ONU equipment is reduced, the cost of equipment scrapping, replacing and installing is reduced, the utilization efficiency of the whole resource is improved, and the design has important economic value and environmental protection significance in the optical fiber network.
Drawings
FIG. 1 is a schematic diagram of a photoelectric conversion driving circuit according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a photoelectric conversion driving circuit according to another embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a photoelectric conversion driving circuit according to another embodiment of the present utility model.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made more clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are correspondingly changed.
It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only (e.g., to distinguish between identical or similar elements) and is not to be construed as indicating or implying a relative importance or an implicit indication of the number of features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The utility model provides a photoelectric conversion driving circuit, referring to fig. 1, the photoelectric conversion driving circuit comprises a PON chip, a multiplexing/demultiplexing chip, an analog switch, a first photoelectric transceiver circuit and a second photoelectric transceiver circuit, wherein a control output end GPIO of the PON chip is electrically connected with the multiplexing/demultiplexing chip and a control end of the analog switch respectively, a data transmission end D1 of the PON chip is electrically connected with a public end of the multiplexing/demultiplexing chip, a signal transmission end D2 of the PON chip is electrically connected with a public end of the analog switch, a first transmission end and a second transmission end of the multiplexing/demultiplexing chip are electrically connected with a data transmission end of the first photoelectric transceiver circuit and a data transmission end of the second photoelectric transceiver circuit respectively, and a first selection channel and a second selection channel of the analog switch are electrically connected with a signal transmission end of the first photoelectric transceiver circuit and a signal transmission end of the second photoelectric transceiver circuit respectively;
wherein, the PON mode applied by the first optical transceiver circuit is different from the PON mode applied by the second optical transceiver circuit.
In this embodiment, the PON chip is a core component of the entire driving circuit, and is responsible for controlling and managing data transmission and signal transmission. The control output end GPIO of the PON chip is respectively and electrically connected with the multiplexing/demultiplexing chip and the control end of the analog switch so as to control and regulate the multiplexing/demultiplexing chip and the analog switch.
Alternatively, the multiplexing/demultiplexing chip has a function of multiplexing or demultiplexing a plurality of signals. The data transmission end D1 of the PON chip is electrically connected to the common end of the multiplexing/demultiplexing chip, and the multiplexing/demultiplexing chip merges or separates data of different optical transceiver circuits and transmits the data to the corresponding optical transceiver circuits.
Optionally, the multiplexing/demultiplexing chip is a 2:1 Multiplexer/Demultiplexer switch, the common terminal is used for transmitting the high-speed Serdes signal, and the first transmission terminal and the second transmission terminal are used for transmitting the Serdes signal. The first transmission end is electrically connected with the data transmission end of the first photoelectric transceiver circuit; the second transmission end is electrically connected with the data transmission end of the second photoelectric transceiver circuit.
Optionally, an analog switch is used to control the transmission path of the signal. The signal transmission end D2 of the PON chip is electrically connected to the common end of the analog switch, and the control output end GPIO is electrically connected to the control end of the analog switch, and outputs a corresponding control signal through the control output end GPIO, so as to control the analog switch to switch between the first selection channel and the second selection channel, thereby selecting a corresponding photoelectric transceiver circuit to communicate with the PON chip, for example, transmitting a signal to the first photoelectric transceiver circuit or the second photoelectric transceiver circuit (or selecting a signal sent by the first photoelectric transceiver circuit or the second photoelectric transceiver circuit to transmit to the PON chip). Thus, the specific photoelectric transceiver circuit can be selected to process signals according to the needs.
The PON chip can send corresponding control signals to the first photoelectric transceiver circuit or the second photoelectric transceiver circuit through the analog switch; alternatively, the PON chip may receive the status signal of the first optical transceiver circuit or the second optical transceiver circuit through an analog switch.
Optionally, the Analog Switch is Analog Switch 2:1.
Alternatively, the PON mode applied by the first optical transceiver circuit may be a GPON/EPON mode. This means that the first opto-electronic transceiver circuitry is capable of supporting the GPON/EPON network standard and performing associated data transmission and signal processing.
Optionally, the PON mode applied by the second optical transceiver circuit is other PON modes than the GPON/EPON mode. This means that the second optical transceiver circuit can support various PON network standards other than GPON/EPON, and perform corresponding data transmission and signal processing.
Alternatively, the PON mode applied by the second optical transceiver circuit may be any one of XGPON, XGSPON, NGPON, 10GEPON modes.
Alternatively, the PON mode applied by the second optical transceiver circuit may be a 10GEPON/XGSPON mode.
The operation principle of the photoelectric conversion driving circuit is as follows:
the control output end GPIO of the PON chip controls the multiplexing/demultiplexing chip to select a corresponding data transmission end (namely a first transmission end or a second transmission end) by outputting high and low level signals, and controls the analog switch to select a corresponding selection channel (namely a first selection channel or a second selection channel), so that a corresponding photoelectric receiving and transmitting circuit (namely a first photoelectric receiving and transmitting circuit or a second photoelectric receiving and transmitting circuit) is controlled to be selected, and a corresponding PON mode can be started.
For example, if the control output terminal GPIO of the PON chip is set to output a high level signal, the multiplexing/demultiplexing chip selects the first transmission terminal and the analog switch selects the first selection channel, i.e. the first photoelectric transceiver circuit is enabled accordingly. At this time, the signal transmission end D2 of the PON chip communicates with the signal transmission end of the first optical transceiver circuit through a first selection channel of the analog switch, and transmits and receives a corresponding control/status signal; the data transmission end D1 of the PON chip communicates with the data transmission end of the first photoelectric transceiver circuit through the first transmission end of the multiplexing/demultiplexing chip, and transmits Serdes signals.
Or, the control output end GPIO of the PON chip is set to output a low-level signal, so that the multiplexing/demultiplexing chip selects a second transmission end and the analog switch selects a second selection channel, and the second photoelectric transceiver circuit can be correspondingly started. At this time, the signal transmission end D2 of the PON chip communicates with the signal transmission end of the second optical transceiver circuit through a second selection channel of the analog switch, and transmits and receives a corresponding control/status signal; the data transmission end D1 of the PON chip communicates with the data transmission end of the second photoelectric transceiver circuit through the second transmission end of the multiplexing/demultiplexing chip, and transmits Serdes signals.
In an embodiment, the photoelectric conversion driving circuit can adapt to different PON mode requirements by selecting different photoelectric transceiver circuits. The flexibility enables the photoelectric conversion driving circuit to operate in different optical fiber network environments and meet the requirements of different application scenes. Therefore, the photoelectric conversion driving circuit has multimode support and free switching capability, so that ONU equipment provided with the photoelectric conversion driving circuit can adapt to different access modes, and can be flexibly used and recycled in various occasions. The development cost of ONU equipment is reduced, the cost of equipment scrapping, replacing and installing is reduced, the utilization efficiency of the whole resource is improved, and the design has important economic value and environmental protection significance in the optical fiber network.
Moreover, the above scheme design can realize control switching between the multiplexing/demultiplexing chip and the analog switch through the output level of the PON chip without using complicated communication protocols and circuit designs, thereby enabling to save development and deployment costs.
In an embodiment, referring to fig. 2, on the basis of the foregoing embodiment, the photoelectric conversion driving circuit further includes a communication module, where the communication module is electrically connected to the communication terminal IO of the PON chip.
In this embodiment, the communication module may be a separate hardware module, or may be a set of circuits or components for implementing data transmission and control between the driving circuit and other devices or apparatuses. The communication module may support different communication interfaces and protocols, such as ethernet, serial, SPI, etc., to enable data exchange with other devices.
Alternatively, the communication module may receive instructions, configuration, and data from the external device, while also being able to send responses, status information, and data to the external device. It acts as an intermediary between the drive circuitry and other devices, enabling communication and data sharing with other devices.
For example, other devices or apparatuses may send corresponding control instructions to the photoelectric conversion driving circuits to control the photoelectric conversion driving circuits to switch to the corresponding PON modes. When the PON chip of the photoelectric conversion driving circuit receives a corresponding control instruction through the communication module, i.e. outputs a corresponding level signal through the control output terminal GPIO, so as to enable the photoelectric transceiver circuit corresponding to the control instruction.
In an embodiment, referring to fig. 3, on the basis of the foregoing embodiment, the photoelectric conversion driving circuit further includes a power supply module, where a first output end of the power supply module is electrically connected to the first photoelectric transceiver circuit through a first switch, a second output end of the power supply module is electrically connected to the second photoelectric transceiver circuit through a second switch, a third output end of the power supply module is electrically connected to a power supply end VDD of the PON chip, and control ends of the first switch and the second switch are electrically connected to the PON chip.
In this embodiment, the power supply module is responsible for providing stable power supply for each module in the photoelectric conversion driving circuit. The power supply module comprises a plurality of output ends, wherein the first output end is electrically connected with the first photoelectric receiving and transmitting circuit through the first switch, the second output end is electrically connected with the second photoelectric receiving and transmitting circuit through the second switch, and the third output end is directly and electrically connected with the power end VDD of the PON chip so as to meet the power supply requirement.
It should be noted that, the power supply module may receive an external power source and perform a corresponding voltage transformation operation, so as to provide voltages adapted to the PON chip, the first optical transceiver circuit and the second optical transceiver circuit.
Optionally, the control ends of the first switch and the second switch are electrically connected to the PON chip, and receive a control signal from the PON chip. The PON chip can control states of the first switch and the second switch by controlling the control signals, thereby controlling power supply to the first optical transceiver circuit and the second optical transceiver circuit.
The control terminals of the first switch and the second switch can be electrically connected to the control output terminal GPIO of the PON chip, and the control logic of the first switch is turned on at a high level and turned off at a low level, and the control logic of the first switch is turned on at a low level and turned off at a high level. Therefore, when the control output end GPIO of the PON chip outputs a high-level signal, the first photoelectric receiving and transmitting circuit can be started, and the second photoelectric receiving and transmitting circuit can be powered off, so that the power consumption is saved; or when the control output end GPIO of the PON chip outputs a low-level signal, the second photoelectric receiving and transmitting circuit can be started, and the first photoelectric receiving and transmitting circuit can be powered off, so that the power consumption is saved.
The present utility model further provides a photoelectric conversion driving device, which includes a photoelectric conversion driving circuit, and the specific structure of the photoelectric conversion driving circuit refers to the above embodiment.
The present utility model further provides an ONU device, where the ONU device includes a photoelectric conversion driving device, and the specific structure of the photoelectric conversion driving device refers to the foregoing embodiments, and since the ONU device adopts all the technical solutions of all the foregoing embodiments, at least all the technical effects brought by the technical solutions of the foregoing embodiments are not described herein in detail.
Optionally, the ONU device is referred to as a multimode PON ONU device.
Optionally, the ONU device further includes an optical network detection device, and the optical network detection device is electrically connected to the photoelectric conversion driving device.
Optionally, the optical network detecting device is electrically connected to a communication module of the photoelectric conversion driving circuit in the photoelectric conversion driving device, so as to communicate with the PON chip therein.
Optionally, the optical network detection device is configured to detect an optical network actually accessed by the ONU device, and send corresponding optical network information to the photoelectric conversion driving circuit. When the PON chip of the optical-electrical conversion driving circuit receives the corresponding optical network information through the communication module, the control output terminal GPIO outputs a corresponding level signal to enable the optical-electrical transceiver circuit corresponding to the optical network to which the ONU device is actually connected.
The above description of the preferred embodiments of the present utility model should not be taken as limiting the scope of the utility model, but rather should be understood to cover all modifications, variations and adaptations of the present utility model using its general principles and the following detailed description and the accompanying drawings, or the direct/indirect application of the present utility model to other relevant arts and technologies.
Claims (7)
1. The photoelectric conversion driving circuit is characterized by comprising a PON chip, a multiplexing/demultiplexing chip, an analog switch, a first photoelectric transceiver circuit and a second photoelectric transceiver circuit, wherein a control output end of the PON chip is respectively and electrically connected with the multiplexing/demultiplexing chip and a control end of the analog switch, a data transmission end of the PON chip is electrically connected with a public end of the multiplexing/demultiplexing chip, a signal transmission end of the PON chip is electrically connected with a public end of the analog switch, a first transmission end and a second transmission end of the multiplexing/demultiplexing chip are respectively and electrically connected with a data transmission end of the first photoelectric transceiver circuit and a data transmission end of the second photoelectric transceiver circuit, and a first selection channel and a second selection channel of the analog switch are respectively and electrically connected with a signal transmission end of the first photoelectric transceiver circuit and a signal transmission end of the second photoelectric transceiver circuit;
wherein, the PON mode applied by the first optical transceiver circuit is different from the PON mode applied by the second optical transceiver circuit.
2. The optical-to-electrical conversion driving circuit according to claim 1, wherein the PON mode applied by the first optical transceiver circuit is a GPON/EPON mode;
the PON mode applied by the second optical transceiver circuit is either one of XGPON, XGSPON, NGPON and 10GEPON modes.
3. The photoelectric conversion driving circuit according to claim 1 or 2, further comprising a communication module electrically connected to a communication terminal of the PON chip.
4. The photoelectric conversion driving circuit according to claim 1 or 2, further comprising a power supply module, wherein a first output terminal of the power supply module is electrically connected to the first photoelectric transceiver circuit via a first switch, a second output terminal of the power supply module is electrically connected to the second photoelectric transceiver circuit via a second switch, a third output terminal of the power supply module is electrically connected to a power supply terminal of the PON chip, and control terminals of the first switch and the second switch are electrically connected to the PON chip.
5. A photoelectric conversion driving device comprising the photoelectric conversion driving circuit according to any one of claims 1 to 4.
6. An ONU apparatus comprising the photoelectric conversion driving device according to claim 5.
7. The ONU apparatus according to claim 6, characterized in that said ONU apparatus further comprises an optical network detection device, said optical network detection device being electrically connected to said photoelectric conversion driving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322054211.0U CN220307213U (en) | 2023-08-02 | 2023-08-02 | Photoelectric conversion driving circuit, photoelectric conversion driving device and ONU equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322054211.0U CN220307213U (en) | 2023-08-02 | 2023-08-02 | Photoelectric conversion driving circuit, photoelectric conversion driving device and ONU equipment |
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| Publication Number | Publication Date |
|---|---|
| CN220307213U true CN220307213U (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322054211.0U Active CN220307213U (en) | 2023-08-02 | 2023-08-02 | Photoelectric conversion driving circuit, photoelectric conversion driving device and ONU equipment |
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| CN (1) | CN220307213U (en) |
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- 2023-08-02 CN CN202322054211.0U patent/CN220307213U/en active Active
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