The HFBR-0300Z Series is designed to provide the most cost-effective 1300 nm fiber optic links for a wide variety of data communication applications from low-speed distance extenders up to SONET OC-3 signal rates. Pinouts identical to Avago HFBR-0400Z Series allow designers to easily upgrade their 820 nm links for farther distance. The trans-mitter and receiver are compatible with two popular optical fiber sizes: 50/125 μm and 62.5/125 μm diameter. This allows flexibility in choosing a fiber size. The 1300 nm wavelength is in the lower dispersion and attenuation region of fiber, and provides longer distance capabilities than 820 nm LED technology. Typical distance capabilities are 2 km at 125 MBd and 5 km at 32 MBd.