Miniature online optical fiber transceiver

Abstract

The utility model discloses a miniature online optical fiber transceiver, which comprises a shell, an input power supply module, a photoelectric composite cable interface module and a network interface module, and through compact design and modular arrangement, miniaturization and efficient heat dissipation of the equipment are realized, and the device is suitable for any space in enterprise-level cabinets. The input power supply module supports 24V-60V direct current input, is compatible with POE and DC power supply modes, stably transmits power to far-end equipment through the photoelectric composite cable interface module, provides 13W external POE power supply within the distance of 300-800m, and effectively overcomes the problem of voltage attenuation during long-distance power supply of traditional equipment. Meanwhile, the optical fiber data transmission unit and the power transmission unit are independently arranged, stable transmission of power and data is ensured, signal interference is reduced, and the device is suitable for high-requirement optical fiber network application. The overall structure significantly reduces the complexity of wiring and external power supply adaptation, improves the flexibility of remote power supply, and provides a novel solution with convenient wiring and stable power supply for park and enterprise networks.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic network equipment technology, and in particular to a miniature online fiber optic transceiver. Background Technology

[0002] Fiber optic transceivers are devices that convert optical signals into electrical signals and vice versa, widely used in high-demand scenarios such as fiber-to-the-building, campus networks, and enterprise networks. Their working principle involves simultaneously transmitting power and data via a fiber-optic composite cable to provide power and data connectivity to remote devices (such as network cameras). However, traditional fiber optic transceivers have significant problems in remote power supply, ease of installation, and signal stability, especially in rack environments within campuses and enterprises, exhibiting the following typical drawbacks:

[0003] 1. Limited power supply distance and significant voltage attenuation. Traditional transceivers experience gradual voltage attenuation over longer transmission distances due to cable resistance, making it difficult to provide stable power over distances of 300 to 800 meters. Therefore, enterprises often need to add repeater equipment or relocate power supplies at remote locations, which not only increases costs but also raises maintenance difficulty, leading to overall system instability.

[0004] 2. Limited power supply mode and complex power adaptation. Existing technologies typically require devices to use a specific voltage and mostly only support one power supply method, either DC or PoE, making it difficult to adapt to multi-voltage power supply needs in different environments. For example, PoE power supply is not compatible with 24V or 48V DC input, increasing the difficulty of external power supply adaptation and installation complexity.

[0005] 3. Large equipment size limits rack layout. Traditional fiber optic transceivers are large in size, occupying limited installation space within the rack, especially in enterprise or park racks where equipment is densely packed, making it difficult to add extra power outlets. This results in redundant installation and affects aesthetics.

[0006] To overcome these problems, existing technologies typically employ methods such as adding power conversion modules, increasing repeaters, or using large equipment with external cooling devices to extend power supply distances and improve system stability. However, these improvements introduce new challenges, such as increased cabling costs, increased maintenance difficulty, and increased energy consumption. Furthermore, the large size of the equipment and the presence of numerous redundant modules further complicate rack layout in high-density network environments.

[0007] Therefore, how to achieve stable power supply over long distances, adapt to multiple power input modes, and reduce equipment size to improve installation convenience has become the technical problem to be solved by this utility model. Utility Model Content

[0008] The technical problem solved by this utility model is to address the deficiencies in the prior art mentioned above by providing a miniature online fiber optic transceiver to solve the problems of insufficient power supply distance, complex power supply adaptation, and large device size that is inconvenient to install mentioned in the background art.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0010] A miniature online fiber optic transceiver includes a housing and an input power module, an optical fiber composite cable interface module, and a network interface module disposed within the housing.

[0011] The input power module includes a filter capacitor and a voltage regulator, which is used to receive external power input and is connected to the optoelectronic composite cable interface module through a DC wire.

[0012] The optical fiber composite cable interface module includes an optical fiber data transmission unit and a power transmission unit;

[0013] The power transmission unit includes a POE input module and a DC output interface. The POE input module is located at one end of the power transmission unit to receive external power and is connected to the DC output interface through internal wiring. The DC output interface is located at the other end of the power transmission unit to connect to external terminal equipment to provide a stable 12V voltage output.

[0014] The input power module further supports 24V to 60V DC power input and includes an independent power conversion unit, which transmits the DC power to the optoelectronic composite cable interface module through an internal electrical connection to supply remote terminal equipment.

[0015] The fiber optic data transmission unit is electrically connected to the network interface module via PCB wiring. The network interface module is fixed to the housing and has an RJ45 interface for connecting to external network devices.

[0016] As a further embodiment of this invention, heat dissipation holes are also included, with heat dissipation holes evenly distributed on the outer shell.

[0017] As a further embodiment of this invention, the RJ45 interface of the network interface module is provided with reinforcing ribs to increase the physical strength of the RJ45 interface for use in environments with frequent plugging and unplugging.

[0018] As a further embodiment of this invention, an insulating layer is provided on the inner wall of the outer shell. The insulating layer is made of a high-temperature resistant material to improve the safety and reliability of the equipment.

[0019] As a further embodiment of this invention, the high-temperature resistant material includes, but is not limited to, polyimide and polyethylene terephthalate.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. Long-distance and efficient power supply: The transceiver design of this application is particularly suitable for large-scale, long-distance power supply scenarios. Through the optimization of the optical fiber composite cable and power transmission unit, it achieves the ability to provide stable power supply within a transmission distance of 300 to 800 meters. In particular, it supports 13W PoE power supply to meet the continuous power supply needs of remote camera-type terminal devices, avoiding the disadvantages of traditional devices being susceptible to voltage attenuation during long-distance power supply.

[0022] 2. Multi-mode power compatibility: The transceiver's input power module supports DC input ranging from 24V to 60V, adapting to multiple power supply modes including PoE and standard DC. Through structured electrical connections, it achieves flexible remote power transmission, adapting to various voltage inputs and providing a stable 12V output. This design offers more flexible power supply options for complex network environments such as industrial parks and enterprises, significantly reducing the complexity of external power supply adaptation.

[0023] 3. Independent Fiber Optic Data and Power Transmission Structure: The fiber optic composite cable interface module achieves independent design of the fiber optic data transmission unit and the power transmission unit, enabling stable transmission of power and data signals through a unified fiber optic composite cable, effectively reducing signal interference. This design not only enhances equipment stability but also significantly reduces wiring complexity, making it suitable for scenarios with high requirements for signal transmission stability.

[0024] Additional aspects and advantages of this invention 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 invention. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is the circuit diagram of the input power module of this utility model.

[0027] Figure 2 This is the power input filter circuit diagram of this utility model.

[0028] Figure 3 This is the circuit diagram of the voltage regulator output module of this utility model.

[0029] Figure 4This is the circuit diagram of the network interface module of this utility model (based on RTL8213B).

[0030] Figure 5 This is a circuit diagram of the data transmission interface of this utility model.

[0031] Figure 6 This is a circuit diagram of the signal amplification and driving circuit of this utility model.

[0032] Figure 7 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0033] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] Please see Figure 1 —7. In this embodiment of the present invention, a miniature online fiber optic transceiver includes a housing 1 and an input power module 2, an optical fiber composite cable interface module 3, and a network interface module 4 disposed in the housing 1.

[0035] The input power module 2 is used to receive external power and is connected to the optoelectronic composite cable interface module 3 via an electrical connection. The optoelectronic composite cable interface module 3 includes an optical fiber data transmission unit and a power transmission unit.

[0036] Electrical connections can be achieved via DC power lines (DC conductors) or PCB wiring. If the input power module 2 and the optoelectronic composite cable interface module 3 are physically separated, using DC conductors can effectively transmit power. DC conductors can carry DC power from 24V to 60V, ensuring power transmission at different voltage levels. If the input power module 2 and the optoelectronic composite cable interface module 3 are integrated on the same circuit board, electrical connections can be achieved directly through copper traces on the printed circuit board (PCB). This method simplifies the connection structure and improves the compactness of the device and the neatness of the wiring.

[0037] The power transmission unit includes a PoE input module and a DC output interface. The PoE input module receives external power and transmits the power to the DC output interface through an internal electrical connection. The DC output interface is electrically connected to an external terminal device to provide a stable 12V voltage output. The input power module 2 also supports 24V to 60V DC power input and includes a separate power module for supplying the input DC power to the remote terminal device through the optical fiber composite cable interface module 3. The optical fiber data transmission unit is electrically connected to the network interface module 4. The network interface module 4 is mounted on the housing 1 and has an RJ45 interface for connecting to external network devices.

[0038] The input power module 2 can receive DC power input in the range of 24V to 60V, and is electrically connected to external terminal equipment through the optoelectronic composite cable interface module 3 to supply power to the external terminal equipment.

[0039] The fiber optic composite cable interface module 3 includes a fiber optic data transmission unit and a power transmission unit. The fiber optic data transmission unit is electrically connected to the network interface module 4, and the power transmission unit is electrically connected to the input power module 2. It is also connected to a remote terminal device via an external fiber optic composite cable to achieve power transmission. The power transmission unit of the fiber optic composite cable interface module 3 is electrically connected to the external terminal device via a two-core square copper wire. When the input power module 2 receives a 48V input voltage, the power transmission unit of the fiber optic composite cable interface module 3 provides 13W of PoE power to the external terminal device to meet the power supply requirements of remote camera-type terminal devices. The RJ45 interface of the network interface module 4 is electrically connected to the fiber optic data transmission unit.

[0040] The outer casing 1 has evenly distributed heat dissipation holes 5. Reinforcing ribs are provided around the RJ45 interface of the network interface module to increase the physical strength of the RJ45 interface for use in environments with frequent plugging and unplugging. An insulating layer is provided on the inner wall of the casing. This insulating layer is made of a high-temperature resistant material to improve the safety and reliability of the device. The high-temperature resistant material includes, but is not limited to, polyimide and polyethylene terephthalate.

[0041] The power transmission unit supports a 48V input voltage and outputs 13W of PoE power. Through high-voltage, low-current transmission, it significantly reduces power loss over long distances, ensuring stable power for remote devices. The use of dual-core square copper wire further reduces voltage attenuation over long distances, guaranteeing a stable 13W power supply for remote cameras and other devices. Components such as filter capacitors and voltage regulators in the power module and fiber optic composite cable interface module smooth the power input, filter ripple, and suppress voltage fluctuations, providing remote devices with a clean and stable power input and preventing voltage fluctuations from affecting device operation. Through the combined design of the fiber optic composite cable, dual-core square copper wire, high-voltage PoE power supply mode, and filtering and voltage regulation components, this transceiver effectively overcomes the voltage attenuation problem in traditional solutions, meeting the continuous and stable power supply requirements of remote cameras and other terminal devices.

[0042] Also see Figure 1 — Figure 6 , Figure 1 The circuit diagram shown is for input power module 2. Input power module 2 receives external DC power input (e.g., 24V to 60V) and generates a stable voltage output through filtering and voltage regulation. This circuit includes components such as inductors and filter capacitors to suppress high-frequency noise from the input power supply and ensure power stability. Figure 2 The diagram shows a power input filter circuit, illustrating the parallel combination of multiple filter capacitors (such as 100μF, 10μF, and 0.1μF). Through hierarchical filtering design, power ripple in different frequency bands is effectively removed, protecting subsequent circuits from power noise and further improving power supply stability. Figure 3 This is a circuit diagram of a voltage regulator output module. This module is responsible for further converting the input power supply into a precise 3.3V or other applicable voltage to power other sub-circuits. Through precision resistor voltage division and feedback control, the output voltage can be precisely adjusted according to design requirements, ensuring the power module's efficient power supply capability. Figure 4 The circuit diagram of Network Interface Module 4 is shown, mainly focusing on the RTL8213B chip, which is used to implement the core network data processing functions of the fiber optic transceiver. This circuit connects multiple network interfaces and driver ports, enabling the transceiver to communicate directly with external switches or terminal devices by allocating various network signal paths. Figure 5 This is a circuit diagram of the data transmission interface, showing the combined structure of multiple data transmission lines, transformers, and filter capacitors. Each data line is filtered and level-matched before being transmitted to the core network module to ensure signal integrity. A magnetic transformer enhances the signal's anti-interference capability, meeting the requirements of long-distance data transmission. Figure 6The diagram shows the signal amplification and driving circuit. Through multi-stage amplification and power drive circuit design, the transceiver's driving force in signal transmission is enhanced, ensuring signal integrity and consistency during long-distance transmission. This circuit also includes thermal protection and current limiting circuits to improve the transceiver's reliability and lifespan.

[0043] Example 1:

[0044] In enterprise campus network systems, due to cabling requirements between buildings and floors, fiber optic transceivers often need to be installed in different cabinets to connect remote devices such as cameras and access control systems. These devices not only require continuous and stable data transmission but also a stable power supply over a long period. Traditional fiber optic transceiver systems are insufficient in this scenario due to limited power supply distance, significant voltage attenuation, and limited cabinet space. Specifically, traditional transceivers generally only support a single power supply mode or a specific voltage, making it difficult to directly power them with existing power supplies, resulting in complex power supply adaptation and increased costs. In addition, traditional transceivers are usually bulky, making them difficult to install flexibly in high-density environments such as enterprise or campus cabinets, often resulting in redundant and unsightly cabinet layouts.

[0045] To address the aforementioned issues, this application provides a miniature online fiber optic transceiver that combines the design of the transmitting and receiving ends, achieving efficient remote power supply, flexible multi-mode power adaptation, and highly integrated miniaturized installation to adapt to fiber optic cabling environments in enterprise campuses.

[0046] In this application scenario, the specific implementation method is as follows: The transmitting end device of the miniature fiber optic transceiver of this application is installed in the core rack of the enterprise's computer room, receiving the enterprise's standard 24V or 48V DC power input. Through the input power module 2, the transceiver converts the power in POE or DC mode and transmits it to the remote receiving end device via an optical-electrical composite cable. Since the transmitting end supports a DC input range of 24V to 60V, it can meet various voltage conditions, avoiding the problem of needing to configure an additional power conversion module due to power incompatibility in the prior art, and greatly simplifying power supply adaptation.

[0047] A receiver is installed in the remote cabinet housing the camera or access control equipment and connected to a fiber optic composite cable to receive power and data signals from the transmitter. In this configuration, the receiver's power transmission unit can stably transmit power to the remote location over distances up to 800 meters and output a stable 12V voltage through the receiver's DC interface, providing direct power support for the terminal equipment. This long-distance power supply method uses a two-core square copper wire connected to the receiver, significantly reducing the number of power interfaces while avoiding voltage attenuation caused by resistance during remote power supply.

[0048] Through the above methods, the voltage attenuation of the fiber optic transceiver in long-distance transmission is effectively overcome, enabling it to continuously power camera-type terminal devices over distances of 300 to 800 meters. This avoids the drawback of needing to install repeater equipment due to insufficient power in traditional solutions, thus achieving a significant increase in power supply distance.

[0049] Furthermore, due to its compact design, both the transmitting and receiving devices can be easily housed in their respective racks and directly connected to network switches and cameras via the built-in RJ45 interface. The compact, miniaturized housing allows for flexible installation in high-density server rack environments in enterprises or industrial parks, avoiding cluttered rack layouts, meeting the cleanliness and space utilization requirements of modern data centers, and enhancing the overall ease of installation and aesthetics.

[0050] The application of the miniature fiber optic transceiver in this application within a corporate campus overcomes the problems of limited power supply distance, complex power supply adaptation, and installation difficulties caused by the large size of traditional transceivers. It achieves progress in power supply stability, cabling aesthetics, and ease of installation, providing a more efficient long-distance power supply and data transmission solution for corporate and campus networks, and achieving the expected technical effects.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A miniature online fiber optic transceiver, characterized in that: Includes a housing and an input power module, an optical fiber composite cable interface module, and a network interface module housed within the housing; The input power module includes a filter capacitor and a voltage regulator, which is used to receive external power input and is connected to the optoelectronic composite cable interface module through a DC wire. The optoelectronic composite cable interface module includes an optical fiber data transmission unit and a power transmission unit; The power transmission unit includes a POE input module and a DC output interface. The POE input module is located at one end of the power transmission unit to receive external power and is connected to the DC output interface through internal wiring. The DC output interface is located at the other end of the power transmission unit to connect to external terminal equipment to provide a stable 12V voltage output. The input power module further supports 24V to 60V DC power input and includes an independent power conversion unit, which transmits the DC power to the optoelectronic composite cable interface module through an internal electrical connection to supply remote terminal equipment. The fiber optic data transmission unit is electrically connected to the network interface module via PCB wiring. The network interface module is fixed to the housing and has an RJ45 interface for connecting to external network devices.

2. The miniature online fiber optic transceiver according to claim 1, characterized in that, It also includes heat dissipation holes, which are evenly distributed on the outer casing.

3. A miniature online fiber optic transceiver according to claim 2, characterized in that, The network interface module has reinforcing ribs around its RJ45 interface to increase its physical strength for use in environments with frequent plugging and unplugging.

4. A miniature online fiber optic transceiver according to claim 1, characterized in that, The inner wall of the housing is provided with an insulating layer, which is made of high-temperature resistant material to improve the safety and reliability of the equipment.

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