EPON OLT PX20+++ is an SFP packaged hot-swappable optical module (compliant with IEEE 802.3ah 1000BASE-PX20+) used to connect optical data communication links. It adopts a single-fiber bidirectional design, and the uplink and downlink rates can reach up to 1.25Gbps, which is widely compatible with the market. Mainstream brand OLT equipment.