It converts electrical ModuleBus signal into optical signal for long-distance transmission, realizes interconnection between S800 I/O cluster and controller, supports 1+1 redundant configuration, ensures stable bus communication and improves system availability for critical process control.

Model: 3BSE037760R1 Brand: ABB Type: TB840A ModuleBus cluster modem System: 800xA / AC800M / S800 I/O Interface: Optical ModuleBus + Electrical ModuleBus Redundancy: 1+1 redundant Hot swap: Yes Max local I/O per cluster: 12 points Mounting: Backplane slot installation Certification: CE

Fiber transceiver circuit, bus signal conditioning chip, status LED, electrical bus connector and optical fiber port. Common faults: fiber link loss, bus scan failure, redundancy switching abnormal, signal attenuation.

3BSE037760R1 modem, ABB S800 I/O fiber cluster communication spare widely used for petrochemical and power plant 800xA distributed control system.