ALSTOM SDK-C0148 (12003-101-01, SBS05M09B) Eurocard SBS serial bus master board, spare communication hardware for legacy steam turbine governing control racks.

Product Overview

• Part No: SDK-C0148, 12003-101-01, SBS05M09B
• Brand: ALSTOM

• Category: SBS Serial Bus Station Communication ModuleSDK-C0148 12003-101-01 SBS05M09B is a standard Eurocard draw-out serial bus master module for ALSTOM legacy turbine control platform. The three identifiers belong to one assembly: SDK-C0148 = project part number; 12003-101-01 = drawing number; SBS05M09B = hardware revision version.It serves as the master node of the SBS field serial bus, responsible for bidirectional high-speed data communication management between rack main controller and distributed remote I/O sub-stations. The module forwards turbine setpoint commands, valve position feedback, interlock signals, fault alarms and diagnostic data, executes protocol scheduling and signal buffering. Equipped with multi-channel serial interfaces, front LED status indicators, built-in EMI filtering and surge suppression circuits, it ensures stable long-distance bus transmission under strong electromagnetic interference in power plant governing cubicles. It is an obsolete original maintenance spare widely used for overhaul of thermal power and combined-cycle steam turbine control systems.

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Core Features

• Master controller for ALSTOM proprietary SBS serial bus network
• Real-time bidirectional data exchange between rack CPU and remote I/O stations
• On-board self-diagnosis with front panel LEDs for bus communication fault localization
• Standard Eurocard draw-out structure supporting fast on-site replacement
• Gold-plated edge connectors & reinforced multilayer PCB for anti-vibration performance
• Integrated ESD, transient overvoltage protection and signal noise filtering

• Passed EMC, vibration and wide-range thermal cycling reliability qualification

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Technical Specifications

• Operating Supply: 24 VDC (backplane powered)
• Operating Temperature: -10°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Form Factor: Standard Eurocard rack plug-in printed circuit board

• Protection Class: IP20 when installed inside control cabinet

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Compatibility & Application

• Compatible with ALSTOM legacy steam turbine governing racks supporting SBS serial bus architecture
• Widely deployed in thermal power plants, combined-cycle power stations and captive power facilities
• Applied for remote I/O communication of turbine speed control, valve actuator regulation and protection interlock systems