Based on 1.2 GHz GaN hybrid technology, Teleste AC8710 consists of single optical node with fixed receiver, modular upstream transmitter, and 2 active GaN outputs. Teleste AC9100, based on 1.2 GHz GaN HEMT technology, consists of 2 x 4 node with 4 output ports, including 2 GaN outputs. Device integrates 2 downstream optical receivers and supports up to 4 optical upstream transmitters. In addition to power supply redundancy, AC9100 supports optical link redundancy in both directions.