Product Overview

• Part No: CMU 42015-115-00
• Brand: ALSTOM

• Category: CMU Communication & Main Control ModuleCMU 42015-115-00 is a standard rack plug-in multifunctional control board deployed within ALSTOM legacy turbine control architecture. Serving as an integrated communication and logic processing unit, it establishes data interaction between rack backplane bus, local control modules and upper-level monitoring systems. The module supports Ethernet and serial communication interfaces, processes real-time process parameters, executes control logic, and transmits alarm, interlock and operational data. Equipped with front panel LED diagnostic indicators, built-in surge suppression and ESD protection circuits, it maintains reliable operation under heavy electromagnetic interference in power plant control cubicles. It is an obsolete original maintenance spare widely used for overhaul of steam turbine governing and auxiliary automation systems.

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Core Features

• Integrated multi-protocol communication interface including Ethernet and serial ports
• Real-time logic processing and bidirectional data exchange with system master controllers
• On-board self-diagnostic function with front LED indicators for fault identification
• Standard draw-out rack structure supporting rapid on-site module replacement
• Reinforced multilayer PCB with gold-plated connectors for vibration resistance
• Transient overvoltage and ESD protection for harsh industrial electromagnetic environments

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

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Technical Specifications

• Operating Supply: 24 VDC
• Operating Temperature: -10°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Form Factor: Standard 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 control platforms
• Widely deployed in thermal power plants, combined-cycle power stations and captive power facilities
• Applied for turbine system data communication, process logic management and remote monitoring signal transmission