Product information:

High Speed Extension—Achieve up to 15.3 Mbps over 1 (2-wire) pair or 30 Mbps over 2 (4-wire) pairs.
Flexible Uses—Can be used as a long distance Ethernet extension (repeater) and/or in Multi Drop Ethernet applications.
Multi-rate Selection—Just plug the units in and select the ideal user-configurable rate for your application.
CopperLink 2-Wire Connection—Easy 2-wire CopperLink connection via built-in RJ-45 ports.
Extended Temperature— -40 to 85°C operation.
Ruggedized—Operating temperature of -40 to 85°C and optional conformal coating to protect against condensing humidity and corrosion.
Transparent LAN Bridging—Transparently pass higher-layer protocols with support for 802.1Q VLAN tagging.
Automatic Learning, Aging, and Filtering—Keeps local traffic local, ensuring efficient utilization of the long-range link.
Made in the USA