Upgraded CPUs provide a migration path from Bristol Network 3000 RTUs to the Bristol ControlWave remote automation system. The migration is made by replacing installed Network 3000 CPUs with new CW_35 and CW_31CPUs. The CPUs are direct replacements for the CPUs in the 3335 RTU and 3331 I/O rack. They support most commonly used analog, discrete and counter I/O cards, and modems and radios currently installed in the RTUs.
Emerson Process Management