ABB 3BSE037760R1TB840A ModuleBus Cluster Modem, Material Code: 3BSE037760R1, S800 I/O Fiber O...

TB840A ModuleBus Cluster Modem, Material Code: 3BSE037760R1, S800 I/O Fiber Optic Communication Module for System 800xA DCSABB Group Core Function Description The TB840A is an optical fiber ModuleBus cluster modem designed for ABB S800 distributed I/O systems in critical process control environments. It converts electrical ModuleBus signals between AC 800M controllers and remote I/O stations into dual redundant fiber optic signals to extend communication distance and eliminate electromagnetic interference. Core Function Description The TB840A is an optical fiber ModuleBus cluster modem designed for ABB S800 distributed I/O systems in critical process control environments. It converts electrical ModuleBus signals between AC 800M controllers and remote I/O stations into dual redundant fiber