Juniper EX-SFP-FE20KT13R15 SFP 100Base-BX-U 20 km | Juniper, SFP

Keep Fast Ethernet links alive across distance with a bidirectional SFP designed for single-mode fiber deployments. This 100Base-BX-U module uses TX 1310 nm and RX 1550 nm optics over an LC interface to support up to 20 km of reach, making it a practical fit for extended access runs, building interconnects, and legacy network segments that still need dependable optical transport. For Juniper EX 3200 switch environments, this module provides a clean path to fiber uplinks without changing the switching platform. The single-port SFP form factor keeps installation simple, while the BX architecture reduces fiber strand requirements compared with traditional duplex optics. That matters when you are preserving rack space, simplifying cabling, or extending service to remote closets where every component has to justify itself. Choose this module when the application calls for stable 100 Mbps transport, single-mode compatibility, and a long-reach optical link in a compact hot-pluggable package. It is a focused solution for teams maintaining installed infrastructure and looking for a precise replacement or expansion optic that matches the network’s existing design.