Alessandro Based on the publicly available specifications, the Finisar FTLF1318P3BTL single-mode SFP modules should be compatible with the AS-6 SFP slots and can be used directly.
That said, we recommend using the SFP modules sold in our official store, as they have undergone long-term testing with our products to ensure optimal stability and reliable performance.
Product Link: https://store.lhy-audio.com/collections/cable-accessories/products/sfp-optical-electrical-transceivers