A range of authentic Huawei interface, service, and auxiliary boards designed for various OptiX and OSN series optical transmission equipment, including OSN1500, OSN2500, OSN3500, OSN7500, OSN9500, Metro1000, and OSN1800v. These boards provide essential functionalities such as auxiliary interfaces, fast and gigabit Ethernet, optical interfaces, and optical amplification to ensure reliable and efficient network operations.