The JBX01967 100BASE-BX20-D SFP transceiver represents a cost-effective solution for network professionals seeking extended-reach optical connectivity without the complexity of larger form-factor equipment. This bidirectional transceiver module combines proven optical technology with Juniper ecosystem compatibility to deliver seamless integration into existing infrastructure. **Key Technical Features:** Designed to SFF-8472 extended-reach BiDi specifications, this transceiver surpasses standard IEEE 802.3ah requirements. The 9/125 singlemode fiber core ensures optimal signal integrity over 20-kilometer distances, while the simplex LC/UPC connector provides secure, low-loss optical coupling. Operating at 100Mbps, this module supports consistent data rates across temperature ranges from 0-70°C, accommodating both indoor and outdoor deployment scenarios. **Build Quality & Safety:** Constructed with a robust metal case housing an integrated laser transmitter, the module withstands demanding network environments. Its Class 1 laser safety rating, combined with TUV, UL, and FDA 21CFR 1040.10 compliance, ensures operator safety and regulatory adherence. RoHS and ELV directive compliance reflects commitment to environmental responsibility without compromising performance. **Compatibility & Installation:** As a direct replacement for Juniper EX-SFP-FE20KT15R13 and SFP-FE20KT15R13 modules, installation is straightforward for system administrators familiar with Juniper platforms. The compact 5x4x2-inch form factor fits standard SFP slots without requiring additional hardware modifications. **Applications:** Ideal for metropolitan area networks, campus interconnects, and point-to-point links requiring 20-kilometer reach. Suitable for ISPs, enterprises, and data centers expanding network capacity with cost-effective single-mode fiber infrastructure. **Support & Warranty:** Backed by 90-day limited warranty and custom brand programming availability, with free standard shipping on orders exceeding $99.