ECOPETROL S.A is the state oil producer in Colombia, one of the top four producers of petroleum in Latin America. Their nationwide operation includes multiple oil and gas fields, refineries, shipping ports on both coasts and a network of pipelines throughout the country that interconnect the production system with the consumption centers and marine terminals. This application paper diagrams ECOPETOL's upgrade to their wireless control system to a wireless Ethernet based network.

The ESTeem Model 195Ed is the latest generation wireless modem with independent Ethernet and Serial (RS-232C) interfaces designed for the rigors of the Industrial, Public Safety, and Federal markets in the unlicensed 902-928 MHz frequency band. The Model 195Ed, with a NEMA 4 enclosure, designed for direct outdoor pole mounting, is a Direct Sequence Spread Spectrum (DSSS) radio modem that can deliver 1 to 54 Mbps of RF data rate in high noise environments. Distances to 11 miles (Line-of-Sight) at 1 to 11 Mbps are possible for point to point and point to multi-point applications.