Description
Brand: ABB
Product Series: MasterView / Advant OCS / MasterPiece 200 System
Model: TC625 (Part Number: 3BSE002224R1)
Product Type: Coaxial Cable ModuleBus / MasterFieldbus Modem

ABB TC625 Coaxial Modem 3BSE002224R1
Technical Parameters:
Module Function: Serves as a high-speed physical layer transceiver designed to convert electrical control backplane signals into high-frequency coaxial cable transmission signals for long-distance bus extension.
Bus Compatibility: Fully compatible with ABB ModuleBus and MasterFieldbus networks, allowing extended point-to-point or multi-drop clustering of I/O stations.
Transmission Medium: Standardized 75-ohm coaxial cable infrastructure with matching BNC or specialized coaxial network connectors.
Data Rate: Supports deterministic, real-time industrial communication speeds engineered for low-latency transmission of process variables.
Galvanic Isolation: Built-in high-voltage electrical isolation barriers across the coaxial interface to prevent ground loops and shield processing networks from severe field-side electromagnetic interference (EMI).
Power Distribution: Draws logic operating power directly from the hosting sub-rack backplane configuration or localized 24 VDC industrial power supplies.
Diagnostic Array: Integrated front-panel LED indicators providing immediate visual status for power health, transmit activity (TX), and receive activity (RX).
Mechanical Design: Compact slide-in rack module architecture configured for secure installation within standard ABB Master/Advant automation sub-racks.
Industrial Sectors:
Process Automation Utilities (Chemical, Petrochemical, Oil & Gas Processing), Power Generation Stations (Hydroelectric, Thermal, and Gas Plants), Heavy Metallurgical Mills, Mining Facilities, and Pulp & Paper Mills.
Application Scenarios:
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Long-Distance Distributed I/O Extension: Installed within Advant OCS or MasterPiece 200 topologies to bridge local controller racks over to remote S800 or legacy I/O clusters located in distant marshalling enclosures.
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Substation Electrical Noise Isolation: Deployed in environments experiencing severe electrical transients to transmit critical fieldbus data over shielded coaxial networks, ensuring signal integrity across separate control rooms.
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Heavy Machinery Control Integration: Integrated into rolling mill or mining crane automation networks where centralized controllers must communicate reliably with moving or distributed drop-stations.
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Legacy DCS Infrastructure Retrofits: Utilized during plant control system expansions to maintain and extend existing MasterFieldbus coaxial networks without requiring immediate conversion to fiber-optic media.


