Designing an XGS-PON Network to Support Large-Scale Radio Astronomy at the Timau National Observatory

The Timau National Observatory has been established as an alternative solution to the now less-than-ideal conditions at the Boscha Observatory. In addition to optical telescopes, the National Observatory will also feature a radio telescope that requires infrastructure that enables fast and secure data transmission free from radio signal interference. This research proposes a fiber optic network design using XGSPON technology with speeds up to 10 Gbps to facilitate data transfer to BPON as the operational control office. From the design and simulation results, the performance analysis parameters for the link power budget met the threshold of -28 dB, the value of the rise time budget was below 0.07 ns, the factor Q was above 6, and the BER threshold of 10<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-9</sup> was achieved with a transmitter power of 11 dBm (class E2), due to the long distance and uneven terrain that require a high transmitter power. The system design analysis revealed that the link power budget, the rise time budget, the Q factor, and the BER parameters all meet the standards set by ITU-T G-9807.1.