This document provides specifications for an SFP-GE-LX-SM1310-BIDI optical transceiver module. It operates at 1 Gbit/s over single-mode fiber for up to 10 km, using 1310 nm transmission and 1490 nm reception. It uses an eSFP form factor and LC connectors. This bidirectional module must be used in pairs with an SFP-GE-LX-SM1490-BIDI module for single-fiber connectivity. Contact information is provided to purchase or get more information on this product.