CN211127812U - SFP + optical module with MAC - Google Patents
SFP + optical module with MAC Download PDFInfo
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- CN211127812U CN211127812U CN202020021683.XU CN202020021683U CN211127812U CN 211127812 U CN211127812 U CN 211127812U CN 202020021683 U CN202020021683 U CN 202020021683U CN 211127812 U CN211127812 U CN 211127812U
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Abstract
The utility model discloses a from SFP + optical module of taking MAC, including light receiving component, light emission component, abrupt receipts type limiting amplifier, laser driver, O L T MAC unit and interface unit, SFP + optical module is used for being connected with the switch through interface unit, light receiving component's input is used for being connected with ONU equipment through optic fibre, light receiving component's output and abrupt receipts type limiting amplifier's input are connected, abrupt receipts type limiting amplifier's output is connected with O L T MAC unit's input, O L T MAC unit's input/output is connected with interface unit's input/output, O L T MAC unit's output is connected with laser driver's input, laser driver's output and light emission component's input are connected, light emission component's output is used for being connected with ONU equipment through optic fibre.
Description
Technical Field
The utility model relates to an optical communication technical field especially relates to a from SFP + optical module of taking MAC.
Background
An Optical access Network is an access Network taking light as a transmission medium and mainly comprises three parts, namely, an O L T (Optical line Terminal), an ONU (Optical Network Unit), and an ODN (Optical Distribution Network), wherein the O L T is a core component of the Optical access Network, is equivalent to a switch or a router in a conventional communication Network, and is also a multi-service providing platform, and belongs to telecommunication office equipment.
At present, O L T equipment in a PON (Passive Optical Network) Network is realized in a mode of O L T equipment + O L T Optical modules, O L T equipment comprises a main control module, a service module, a power supply module, a fan module, SFP slots and the like, the O L T Optical module is an independent accessory based on SFP packaging, can realize hot plug on O L T equipment and is responsible for photoelectric conversion, the O L T equipment has two forms at present, one is a machine frame form, a common single frame can meet the use of 3.2 ten thousand users and is mainly applied to a population dense area, and the other is a Pizza Box form, similar to an enterprise switch and generally supports the use of 2 thousand users and is mainly applied to an enterprise all-Optical wiring area and other areas with lower population density.
However, the frame type and Pizza Box type O L T devices are only suitable for large operators and developed regions, and have certain limitations in application, and meanwhile, have the problems of large overall size, large power consumption, high cost and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a from SFP + optical module of taking MAC can realize the miniaturization of O L T equipment, and the configuration is nimble, and the application scene is abundant to the volume is less, and the consumption is less, and the cost is lower.
In order to achieve the aim, the embodiment of the utility model adopts the following technical scheme that the SFP + optical module with the MAC is provided, which comprises an optical receiving component, an optical transmitting component, a burst-receiving type limiting amplifier, a laser driver, an O L T MAC unit and an interface unit, wherein the SFP + optical module is used for being connected with a switch through the interface unit;
the input end of the optical receiving component is used for being connected with ONU equipment through an optical fiber, the output end of the optical receiving component is connected with the input end of the burst-type limiting amplifier, and the output end of the burst-type limiting amplifier is connected with the input end of the O L TMAC unit;
the input/output end of the O L T MAC unit is connected with the input/output end of the interface unit;
the output end of the O L T MAC unit is connected with the input end of the laser driver, the output end of the laser driver is connected with the input end of the light emission component, and the output end of the light emission component is used for being connected with the ONU equipment through an optical fiber.
As a preferred scheme, the SFP + optical module further includes a control unit;
and a first output end of the control unit is connected with the control end of the burst-type limiting amplifier, and a second output end of the control unit is connected with the control end of the laser driver.
Preferably, the O L T MAC unit comprises at least one of a PON O L T MAC chip, a GPON O L T MAC chip, an XGPON O L T MAC chip, an XGS-PON O L T MAC chip and an NGPON2O L T MAC chip.
Preferably, the interface unit includes a gold finger interface.
Compared with the prior art, the embodiment of the utility model provides a from SFP + optical module of taking MAC, including light receiving element, light emission subassembly, the type limiting amplifier that suddenly accepts, laser driver, O L T MAC unit and interface unit, SFP + optical module is used for passing through interface unit and switch connection, the input of light receiving element is used for passing through optic fibre and ONU equipment connection, the output of light receiving element is connected with the input of the type limiting amplifier that suddenly accepts, the output of the type limiting amplifier that suddenly accepts is connected with the input of O L TMAC unit, the input/output of O L T MAC unit is connected with the input/output of interface unit, the output of O L C unit is connected with laser driver's input, laser driver's output is connected with light emission subassembly's input, the output of light emission subassembly is used for passing through optic fibre and ONU equipment connection, thereby can realize the miniaturization of O L T equipment, the configuration is nimble, use the scene abundant, and the volume is less, the consumption is less, and the cost is lower.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of an SFP + optical module with a MAC according to the present invention;
fig. 2 is a schematic structural diagram of another preferred embodiment of an SFP + optical module with a MAC according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled in the art without creative work all belong to the protection scope of the present invention.
The embodiment of the utility model provides a from SFP + optical module of taking MAC, it is shown with reference to fig. 1, be the utility model provides a from the structural schematic diagram of a preferred embodiment of SFP + optical module of taking MAC, SFP + optical module includes light receiving element 100, light emitting component 200, abrupt receipts type limiting amplifier 300, laser driver 400, O L T MAC unit 500 and interface unit 600;
the input end of the optical receiving component 100 is configured to be connected to an ONU device through an optical fiber, the output end of the optical receiving component 100 is connected to the input end of the burst limiting amplifier 300, and the output end of the burst limiting amplifier 300 is connected to the input end of the O L T MAC unit 500;
an input/output terminal of the O L T MAC unit 500 is connected to an input/output terminal of the interface unit 600;
the output end of the O L T MAC unit 500 is connected to the input end of the laser driver 400, the output end of the laser driver 400 is connected to the input end of the optical transmission module 200, and the output end of the optical transmission module 200 is used for being connected to an ONU device through an optical fiber.
Specifically, the interface unit 600 of the SFP + optical module is inserted into a switch (including but not limited to a switch) to connect and communicate with the switch to transmit a traffic signal; the optical receiving component 100 and the optical transmitting component 200 of the SFP + optical module are connected and communicated with ONU devices (including but not limited to ONU devices) through optical fibers, and transmit optical signals.
In the actual optical fiber communication process, when an optical receiving component 100 receives an optical signal sent by an ONU device through an optical fiber, the received optical signal is subjected to optical-electrical conversion to correspondingly obtain an electrical signal, and the electrical signal obtained by conversion is sent to a burst-receiving limiting amplifier 300 through a Serdes interface, the burst-receiving limiting amplifier 300 performs signal amplification on the received electrical signal to correspondingly obtain an amplified electrical signal, and sends the amplified electrical signal to an O L T MAC unit 500 through the Serdes interface, the O L T MAC unit 500 performs processing (such as encoding, control, management and other processing actions) on the received amplified electrical signal, correspondingly obtains a processed electrical signal, and sends the processed electrical signal to an interface unit 600 through the Serdes interface, so that an SFP + optical module transmits the processed electrical signal to a switch through the interface unit 600, a corresponding service signal (the service signal is an electrical signal) returned by the switch can be transmitted to an SFP + optical module through the interface unit 600, after the service signal returned by the switch is received through the Serdes interface unit L, the received service signal is transmitted to an optical transmission driver 500 through the optical transmission unit 200, and the optical transmission of the optical transmission unit 500, and the optical transmission of the processed electrical signal is performed, so that the optical signal is received by the optical transmission of the optical transmission module 200, and the optical transmission of the optical transmission component 200, and the optical transmission of the optical transmission component, and the optical transmission of the optical transmission component, and the optical transmission of.
It should be noted that, a common limiting amplifier is generally a continuous limiting amplifier, an optical network composed of O L T devices and ONU devices is a time division multiplexing network, and downlink data of O L T devices needs to be received in burst, so that the limiting amplifier in the SFP + optical module needs to use a burst-receiving limiting amplifier, in addition, the optical receiving module can be implemented by using an existing ROSA, the optical transmitting module can be implemented by using an existing TOSA, or the optical receiving module and the optical transmitting module are implemented by using an existing BOSA, which is not limited in the embodiment of the present invention.
Referring to fig. 2, it is a schematic structural diagram of another preferred embodiment of an SFP + optical module with a MAC according to the present invention, in another preferred embodiment, the SFP + optical module further includes a control unit 700;
a first output terminal of the control unit 700 is connected to the control terminal of the burst-mode limiting amplifier 300, and a second output terminal of the control unit 700 is connected to the control terminal of the laser driver 400.
Specifically, in combination with the above embodiments, the control unit 700 may be an MCU microcontroller (including but not limited to an MCU microcontroller) and is mainly used to perform corresponding control on the burst-type limiting amplifier 300 and the laser driver 400, for example, to control and process configuration information in the burst-type limiting amplifier 300 and the laser driver 400.
In yet another preferred embodiment, the O L T MAC unit 500 includes at least one of a PONO L T MAC chip, a GPON O L T MAC chip, an XGPON O L T MAC chip, an XGS-PON O L T MAC chip, and an NGPON2O L T MAC chip.
Specifically, in combination with the above embodiments, the O L T MAC unit 500 may select different O L T MAC chips according to actual requirements to implement, including but not limited to any one of a PON O L T MAC chip, a GPON O L T MAC chip, an XGPON O L T MAC chip, an XGS-PON O L T MAC chip, and an NGPON2O L T MAC chip, so as to implement corresponding functions.
Taking the XGPON/NGPON2 MAC chip as an example, the functions mainly implemented include (1) supporting functions defined by g.987.3 and g.989.3 protocols, (2) supporting a downlink 9953Mbps data rate and an uplink 2488Mbps data rate, (3) supporting O L T ranging and registration functions, (4) supporting an FEC front-end error correction function, (5) supporting an uplink and downlink AES-128 encryption and decryption function, (6) supporting flexible uplink and downlink Bandwidth control, such as Dynamic Bandwidth allocation, and (7) supporting a queue ordering function for CPU and P L OAM.
It should be noted that, there is not O L T MAC processing mechanism in the current SFP + optical module, only possesses basic photoelectric conversion function, belongs to physical layer signal conversion, the embodiment of the utility model provides an integrate O L T MAC unit 500 and optical module function in SFP + optical module for SFP + optical module has possessed O L T local side function, inserts SFP + optical module in the front-end switch, can develop functions such as virtual PON, thereby realizes the communication capacity on the optical fiber trunk line.
In yet another preferred embodiment, the interface unit 600 comprises a gold finger interface.
It can be understood that the interface unit 600 may be designed as a gold finger interface, and data lines on the gold finger interface are relatively abundant, so that more signals can be transmitted, which is beneficial to transmitting information between the SFP + optical module and the switch.
The embodiment of the utility model provides a from SFP + optical module of taking MAC, including light receiving element, light-emitting component, abrupt receipts type limiting amplifier, laser driver, O L T MAC unit and interface unit, SFP + optical module is used for being connected with the switch through interface unit, light receiving element's input is used for being connected with ONU equipment through optic fibre, light receiving element's output and abrupt receipts type limiting amplifier's input are connected, abrupt receipts type limiting amplifier's output and O L T MAC unit's input are connected, O L T MAC unit's input/output and interface unit's input/output are connected, O L T MAC unit's output and laser driver's input are connected, laser driver's output and light-emitting component's input are connected, light-emitting component's output is used for being connected with ONU equipment through optic fibre, thereby can realize O L T equipment's miniaturization, the configuration is nimble, the application scene is abundant, and the volume is less, the consumption is less (the temperature is lower when using), the cost is lower, simultaneously, can also satisfy the better demand to heat dissipation and space size.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (4)
1. The SFP + optical module with the MAC is characterized by comprising an optical receiving component, an optical transmitting component, a burst-mode limiting amplifier, a laser driver, an O L T MAC unit and an interface unit, wherein the SFP + optical module is used for being connected with a switch through the interface unit;
the input end of the optical receiving component is used for being connected with ONU equipment through an optical fiber, the output end of the optical receiving component is connected with the input end of the burst-type limiting amplifier, and the output end of the burst-type limiting amplifier is connected with the input end of the O L T MAC unit;
the input/output end of the O L T MAC unit is connected with the input/output end of the interface unit;
the output end of the O L T MAC unit is connected with the input end of the laser driver, the output end of the laser driver is connected with the input end of the light emission component, and the output end of the light emission component is used for being connected with the ONU equipment through an optical fiber.
2. The SFP + optical module with MAC of claim 1, wherein the SFP + optical module further comprises a control unit;
and a first output end of the control unit is connected with the control end of the burst-type limiting amplifier, and a second output end of the control unit is connected with the control end of the laser driver.
3. The SFP + optical module with MAC of claim 1, wherein the O L T MAC unit comprises at least one of a PON O L T MAC chip, a GPON O L T MAC chip, an XGPON O L T MAC chip, an XGS-PONO L T MAC chip and an NGPON2O L T MAC chip.
4. The SFP + optical module with MAC of claim 1, wherein the interface unit comprises a gold finger interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020021683.XU CN211127812U (en) | 2020-01-06 | 2020-01-06 | SFP + optical module with MAC |
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| CN202020021683.XU CN211127812U (en) | 2020-01-06 | 2020-01-06 | SFP + optical module with MAC |
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| CN211127812U true CN211127812U (en) | 2020-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112887851A (en) * | 2021-01-13 | 2021-06-01 | 烽火通信科技股份有限公司 | Household all-optical network system and implementation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112887851A (en) * | 2021-01-13 | 2021-06-01 | 烽火通信科技股份有限公司 | Household all-optical network system and implementation method thereof |
| CN112887851B (en) * | 2021-01-13 | 2021-10-08 | 烽火通信科技股份有限公司 | Household all-optical network system and implementation method thereof |
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Address after: 5 / F, fulizhen building, No.1, Kefa Road, high tech park, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Lianzhou International Technology Co.,Ltd. Address before: 5 / F, fulizhen building, No.1, Kefa Road, high tech park, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN PUWEI TECHNOLOGY Co.,Ltd. |