Photoelectric hybrid OLT based on GPON technology

Abstract

The utility model relates to the technical field of optical line terminals, in particular to a photoelectric hybrid OLT (Optical Line Terminal) based on a GPON (Gigabit Passive Optical Network) technology, which comprises a terminal main body, an optical splitter, a wiring board, a photoelectric hybrid cable and a power supply, and the terminal main body is positioned in a central office, is responsible for being connected with a front-end switch, converting an electric signal into an optical signal, and is interconnected with the optical splitter of the user side through a single optical fiber, so that the control, management and distance measurement functions of the optical network unit are realized. According to the photoelectric hybrid OLT based on the GPON technology, through the PoF technology, a photoelectric hybrid cable is adopted to supply power to an optical network unit and transmit data, and meanwhile, an optical splitter and a photoelectric flange are integrated, so that a plurality of channels are uniformly connected with a plurality of user terminals, and cascade output is connected with an external optical splitter in a non-uniform manner; adjustment can be carried out according to actual requirements of users or specific configuration of a network so as to meet specific requirements of different users or different services, and the advantages of being high in integration level, convenient to operate and maintain and low in cost are achieved.

Description

Technical Field

[0001] This utility model relates to the field of optical line terminal technology, specifically to a hybrid optoelectronic OLT based on GPON technology. Background Technology

[0002] An Optical Line Terminal (OLT) is a core central office device in a Passive Optical Network (PON). It plays a crucial role in fiber optic communication systems, converting electrical signals into optical signals for transmission to user-end equipment (such as ONUs or ONTs). Simultaneously, it converts optical signals from the user end back into electrical signals for further processing and transmission. OLTs are widely used in various fiber optic access network scenarios, including home broadband networks, enterprise networks, government and school networks, etc. They provide users with high-speed, stable, and low-cost broadband access services, meeting users' demands for high-quality network connections.

[0003] However, the OLT used in traditional PON systems typically uses separate optical cables and power lines to connect to the user terminal and power supply. This approach results in low integration, system complexity, inconvenient operation and maintenance, and also increases manufacturing and usage costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a hybrid optoelectronic OLT based on GPON technology, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a hybrid optoelectronic OLT based on GPON technology, comprising a terminal body, a splitter, a junction box, a hybrid optoelectronic cable, and a power supply;

[0006] The terminal body is located in the central office and is responsible for connecting with the front-end switch, converting electrical signals into optical signals, and interconnecting with the optical splitter at the user end through a single optical fiber to realize the control, management and ranging functions of the optical network unit.

[0007] The beam splitter is used to separate the required resonant absorption lines for beam splitting;

[0008] The junction box is equipped with an optoelectronic flange and is connected to the optical network unit of the user terminal equipment via the optoelectronic hybrid cable;

[0009] The power supply is connected to the photoelectric flange on the terminal block.

[0010] Optionally, the terminal body includes an uplink port and an optical module. The uplink port is used to connect to a switch, and the optical module is connected to the input end of the optical splitter via an optical fiber.

[0011] Optionally, the photoelectric flange on the terminal block is connected to the output end of the beam splitter.

[0012] Optionally, the number of photoelectric flanges is 32, wherein the 32 photoelectric flanges are divided into 32 channels by a beam splitter, and the photoelectric output terminals of the 32 photoelectric flanges can all be connected to the photoelectric hybrid cable.

[0013] Optionally, the output end of the beam splitter is also connected to an external beam splitter separately via an optical flange.

[0014] This utility model provides a photoelectric hybrid OLT based on GPON technology, which has the following advantages:

[0015] This GPON-based hybrid optical-electric OLT uses PoF technology to power the optical network unit and transmit data via a hybrid optical-electric cable. This hybrid cable integrates optical fiber and conductive copper wire, enabling data transmission and power supply to the equipment simultaneously with a single cable, greatly simplifying connection and use. It also integrates a splitter and optical-electric flange, allowing for multi-channel even connection to multiple user terminals. Additionally, it cascades non-uniformly connected outputs to an external splitter, which can be adjusted according to user needs or specific network configurations to meet the specific requirements of different users or services. This achieves high integration, convenient maintenance, and low cost. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention.

[0017] In the diagram: 1. Terminal body; 101. Uplink port; 102. Optical module; 2. Splitter; 3. Connector board; 4. Fiber optic hybrid cable; 5. Power supply; 6. Fiber optic flange; 7. Optical flange. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figure 1 The present invention provides a technical solution: a hybrid optoelectronic OLT based on GPON technology, comprising a terminal body 1, a splitter 2, a junction box 3, a hybrid optoelectronic cable 4, and a power supply 5;

[0020] Terminal 1 specifically adopts an OLT based on GPON technology. GPON (Gigabit-Capable Passive Optical Network) technology is a broadband passive optical integrated access technology based on the ITU-T G.984.x standard to achieve advantages such as high speed, high efficiency, and security. It has become a leader in the future broadband access field, suitable for various service scenarios, and meets users' needs for network speed and bandwidth. Located in the central office, it is responsible for connecting with the front-end switch, converting electrical signals into optical signals, and interconnecting with the optical splitter 2 at the user end through a single optical fiber to realize the control, management, and ranging functions of the optical network unit. Terminal 1 includes an uplink port 101 and an optical module 102. The uplink port 101 is used to connect to the switch, and the optical module 102 is connected to the input end of the optical splitter 2 through an optical fiber.

[0021] Beam splitter 2 is a passive device, also known as an optical splitter. It does not require external energy, only input light. Beam splitter 2 consists of entrance and exit slits, a mirror, and a dispersive element. It is used to separate the required resonant absorption line for beam splitting. Beam splitter 2 is located inside terminal body 1. The photoelectric flange 6 on the terminal block 3 is connected to the output end of beam splitter 2. The output end of beam splitter 2 is also connected to an external beam splitter separately through optical flange 7. In order to achieve high integration, terminal body 1 integrates beam splitter 2, photoelectric flange 6, and power supply 5.

[0022] The junction box 3 is equipped with photoelectric flanges 6, which are connected to the optical network unit via a hybrid photoelectric cable 4. The photoelectric flanges 6 specifically adopt the standard square connector of SC photoelectric flange to provide a fast and stable connection, suitable for application sites requiring rapid connection. There are 32 photoelectric flanges 6, which are evenly divided into 32 channels by the splitter 2 and are set on the junction box 3. The remaining one is a separate non-uniformly cascaded output connected to an external splitter. The photoelectric output ends of all 32 photoelectric flanges 6 can be connected to the hybrid photoelectric cable 4. Through PoF technology, the hybrid photoelectric cable 4 is used to power the optical network unit and transmit data. The hybrid photoelectric cable 4 is a hybrid cable that integrates optical fiber and conductive copper wire, which can solve the problems of data transmission and equipment power supply with a single cable, greatly facilitating connection and use.

[0023] The photoelectric flange 6 is connected to both the optical network unit and the power supply 5 of the user terminal equipment. The power supply 5 is located inside the terminal body 1 and is connected to the photoelectric flange 6 on the junction box 3. Specifically, it uses 54V voltage and 800W power, which is distributed to 32 photoelectric flange 6 connection ports to supply power to the optical network unit connected to the user terminal. Each port has a maximum power of 80W. The number of photoelectric flanges 6 is not limited to 32 channels. The number of photoelectric flanges 6 and the distribution ratio of even and uneven channels can be selected according to different needs.

[0024] In this invention, the working steps of the device are as follows:

[0025] The optical network unit at the user end can be connected to the optoelectronic flange 6 on the junction box 3 via the optoelectronic hybrid cable 4, the terminal body 1 is connected to the switch via the uplink port 101, and then the junction box 3 is connected to the power supply 5;

[0026] When in use, the terminal body 1 controls, manages, and measures the distance of the optical network unit, while the optical-electric hybrid cable 4 can directly enable the connected optical network unit to transmit data and receive power from the power supply 5.

[0027] The external splitter connected to the other optical flange 7 in a separate cascade can be adjusted according to the user's actual needs or the specific configuration of the network to meet the specific requirements of different users or services.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hybrid optoelectronic OLT based on GPON technology, characterized in that: It includes the terminal body (1), the beam splitter (2), the junction box (3), the optoelectronic hybrid cable (4), and the power supply (5); The terminal body (1) is located in the central office and is responsible for connecting with the front-end switch, converting electrical signals into optical signals, and interconnecting with the optical splitter (2) at the user end through a single optical fiber to realize the control, management and ranging functions of the optical network unit. The beam splitter (2) is used to separate the required resonant absorption lines for beam splitting; The junction box (3) is provided with a photoelectric flange (6) and is connected to the optical network unit of the user terminal equipment through the photoelectric hybrid cable (4); The power supply (5) is connected to the photoelectric flange (6) on the terminal block (3).

2. The optoelectronic hybrid OLT based on GPON technology according to claim 1, characterized in that: The terminal body (1) includes an uplink port (101) and an optical module (102). The uplink port (101) is used to connect to a switch, and the optical module (102) is connected to the input end of the splitter (2) via an optical fiber.

3. The optoelectronic hybrid OLT based on GPON technology according to claim 1, characterized in that: The photoelectric flange (6) on the terminal block (3) is connected to the output end of the beam splitter (2).

4. The optoelectronic hybrid OLT based on GPON technology according to claim 3, characterized in that: The number of the photoelectric flanges (6) is 32. The 32 photoelectric flanges (6) are divided into 32 paths by the beam splitter (2). The photoelectric output ends of the 32 photoelectric flanges (6) can be connected to the photoelectric hybrid cable (4).

5. The optoelectronic hybrid OLT based on GPON technology according to claim 1, characterized in that: The output end of the beam splitter (2) is also connected to an external beam splitter separately via an optical flange (7).

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