Optical cat rod

Abstract

The utility model discloses an optical modem rod which comprises an ONU chip, an optical chip, an optical assembly and a golden finger, the ONU chip is respectively connected with the optical chip and the golden finger, the optical assembly is connected with the optical chip, and the optical assembly comprises an optical transmitting assembly and an optical receiving assembly. According to the optical modem rod, the MAC address is written into the EEPROM of the optical chip, large-scale operation of production personnel is facilitated, and the anti-shoveling plate technology is formed by using the fixed first three bytes of the MAC address of a manufacturer.

Description

Technical Field

[0001] This application relates to the field of optical fiber communication technology, and in particular to an optical modem stick. Background Technology

[0002] An optical modem stick is a miniaturized optical module that integrates traditional ONU devices with ONU functionality. The common method for writing MAC addresses into optical modems on the market is to write the MAC address to a file within the operating system. This method requires a high level of technical expertise from production line personnel and is not user-friendly. Currently, the chips and software solutions used in optical modems on the market are highly overlapping, making it easy for software to be read from the flash chip and for the board to be copied, thus making optical modem technology easily stolen.

[0003] In summary, the existing MAC address writing methods for optical modem sticks are not user-friendly, and optical modem sticks on the market are easily copied, leading to technology theft. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides an optical modem stick that, combined with a new MAC address writing section, can prevent the optical modem stick from being stolen.

[0005] This utility model provides an optical modem stick, comprising: an ONU chip, an optical chip, an optical component, and a gold finger. The ONU chip is connected to the optical chip and the gold finger respectively, and the optical component is connected to the optical chip. The optical component includes an optical transmitting component and an optical receiving component.

[0006] A further technical solution of this utility model is that the optical chip has a built-in EEPROM for storing optical module parameters.

[0007] A further technical solution of this utility model is: the optical chip is GN28L96.

[0008] A further technical solution of this utility model is: the ONU chip integrates a CPU and an ONU, and the CPU accesses the optical module parameters in the optical chip via I2C.

[0009] A further technical solution of this utility model is: the ONU chip is PRX126A1BI.

[0010] A further technical solution of this utility model is: the optical modem uses addresses 248 to 253 as 6 bytes to store the MAC address, which is directly written through the I2C interface of the host computer software.

[0011] A further technical solution of this utility model is: the first three bytes of the MAC address are fixed as 0xdc, 0xe1, 0xad, and the CPU in the ONU chip is connected to the first three bytes of the MAC address through the I2C bus. The CPU uses the first three bytes as a key and writes it to a specified address in the CPU flash partition after encryption.

[0012] This invention provides an optical modem stick that writes the MAC address of the optical modem stick into the EEPROM of the optical chip, facilitating mass production operations. It also utilizes the manufacturer's fixed first three bytes of the MAC address to create an anti-copying technology.

[0013] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention.

[0015] Figure 1 This is a structural block diagram of the optical modem provided in this embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the address parameter standard in the optical modem stick provided in this embodiment of the utility model. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the drawings, not the entire structure.

[0018] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0019] like Figures 1-2 As shown, the optical modem proposed in this utility model has the following embodiments:

[0020] like Figure 1As shown, the optical modem stick 100 includes: ONU chip 130, optical chip 120, optical component 110 and gold finger 140. The ONU chip 130 is connected to the optical chip 120 and the gold finger 140 respectively. The optical component 110 is connected to the optical chip 120. The optical component 110 includes an optical transmitting component and an optical receiving component.

[0021] In a preferred embodiment, the optical chip 120 has an integrated EEPROM for storing optical module parameters.

[0022] In a preferred embodiment, the optical chip 120 is a GN28L96.

[0023] In a preferred embodiment, the ONU chip 130 integrates a CPU and an ONU, and the CPU accesses the optical module parameters in the optical chip 120 via I2C.

[0024] In a preferred embodiment, the ONU chip 130 is a PRX126A1BI.

[0025] In a preferred embodiment, the optical modem uses addresses 248 to 253 as 6 bytes to store the MAC address, which is directly written through the I2C interface of the host computer software.

[0026] In a preferred embodiment, the first three bytes of the MAC address are fixed as 0xdc, 0xe1, 0xad. The CPU in the ONU chip is connected to the first three bytes of the MAC address via the I2C bus. The CPU uses the first three bytes as a key and writes them to a specified address in the CPU flash partition after encryption.

[0027] In practical implementation, the optical modem stick module is an optical module that integrates ONU chips, optical chips, optical components, gold fingers, etc., and features small size, high integration, and plug-and-play functionality.

[0028] The optical components include a TOSA (transmitter component) and a ROSA (receiver component), with the optical chip being GN28L96 and the ONU chip being PRX126A1BI.

[0029] The ONU chip integrates CPU and ONU functions. The ONU chip's CPU can access the optical module parameters in the GN28L96 optical chip via I2C. The GN28L96 optical chip has a built-in EEPROM for storing these parameters, with the parameters at addresses 0xA0 and 0xA2 conforming to the SFF-8472 standard. Figure 2 As shown.

[0030] Addresses 128 to 255 in 0xA0 are reserved and undefined. In this example, the optical modem stick uses addresses 248 to 253 as 6 bytes to store the MAC address. Production line personnel can directly write this address through the I2C interface of the host computer software, which is quick and easy.

[0031] Commercially available optical modem sticks typically require manual modification of a directory file within the operating system to obtain the MAC address, a method that is inconvenient for production line personnel with limited technical skills. In the specific implementation of this invention, the MAC address is written directly into the EEPROM of the optical chip, providing a convenient and quick solution that improves production efficiency.

[0032] According to the above MAC address writing method, when the system starts up, the ONU chip in the optical modem stick obtains the MAC address in the optical chip through the I2C bus and automatically updates it to the / etc / config / network file under the operating system, thereby completing the MAC configuration of the optical modem stick module.

[0033] Anti-copying technology: Typically, a device's MAC address is unique. Manufacturers of optical modem sticks have network-certified MAC addresses, with the first three bytes generally fixed, identifying the manufacturer. In one embodiment, the first three bytes of the MAC address are fixed as 0xdc, 0xe1, 0xad. Before leaving the factory, the optical modem stick module has its MAC address written using the above method. To prevent other manufacturers from copying the hardware and software technology, during system startup, the CPU accesses the first three bytes of the MAC address via the I2C bus and uses these three bytes as a key. Using the MD5 algorithm, an encrypted value is obtained and written to a specified address in the CPU flash partition. If the first three bytes do not match the MAC address 0xdc, 0xe1, 0xad during system startup, the system automatically enters an infinite loop and fails to boot.

[0034] This invention presents a novel method for writing MAC addresses to optical modem sticks. The method features a user-friendly interface and is easy to operate. By combining the MAC address written into the optical chip, the optical modem stick reads the MAC address from the optical chip via the I2C bus during the operating system startup process. It then determines whether the manufacturer of the MAC address matches the predetermined specifications. If the specifications match, the operating system functions normally; otherwise, the system fails to function properly, thus preventing the board from being copied and the technology from being stolen.

[0035] The optical modem stick provided in the above embodiments writes the MAC address of the optical modem stick into the EEPROM of the optical chip, which facilitates mass production operations for manufacturing personnel. Furthermore, it utilizes the first three bytes of the manufacturer's fixed MAC address to form an anti-copying technology.

[0036] In this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a step or method that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such a step or method.

[0037] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. An optical cat rod characterized in that, include: The system comprises an ONU chip, an optical chip, an optical component, and a gold finger. The ONU chip is connected to the optical chip and the gold finger, and the optical component is connected to the optical chip. The optical component includes an optical transmitting component and an optical receiving component. The optical chip has a built-in EEPROM for storing optical module parameters; The optical modem stick uses addresses 248-253 as 6 bytes to store the MAC address, which is directly written through the I2C interface of the host computer software; The first three bytes of the MAC address are fixed as 0xdc, 0xe1, 0xad. The CPU in the ONU chip is connected to the first three bytes of the MAC address via the I2C bus. The CPU uses the first three bytes as a key and writes them to a specified address in the CPU flash partition after encryption.

2. The optical wand of claim 1, wherein, The optical chip is GN28L96.

3. The optical wand of claim 1, wherein, The ONU chip integrates a CPU and an ONU, and the CPU accesses the optical module parameters in the optical chip via I2C.

4. The optical wand of claim 3, wherein, The ONU chip is PRX126A1BI.

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