Product Overview

• Part No: 42011-106-00 A01, ITC_VIOM_VIOC VER.A01
• Brand: ALSTOM

• Category: ITC VIOM / VIOC Vital Safety I/O Processor Module42011-106-00 A01 ITC_VIOM_VIOC VER.A01 is a Eurocard rack plug-in safety-grade I/O processing board for ALSTOM ITC control platform.VIOM = Vital Input/Output Module；VIOC = Vital Input/Output Controller，VER.A01 represents hardware revision A01.The module adopts dual-channel cross-monitoring safety architecture, responsible for safety signal acquisition, logic verification and field I/O command output. It communicates with main controller via rack backplane bus, processes safety interlock, status feedback and protection signals, executes two-way signal cross-checking. Once signal inconsistency is detected, the module automatically switches to fail-safe state to avoid unsafe actions. Equipped with Ethernet interface, front panel LED status indicators, built-in surge filtering and ESD protection, it runs stably under strong electromagnetic interference. It is discontinued original maintenance spare widely used in power generation and safety-critical industrial control systems.

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Core Features

• Safety dual-redundant circuit with cross-check mechanism, fail-safe design for vital control loops
• Integrated vital digital input signal acquisition and safety logic output control
• On-board self-diagnosis, channel fault detection and front LED status indication
• Dual Ethernet communication interfaces for system interconnection and data uploading
• Standard Eurocard draw-out rack structure supporting fast on-site replacement
• Reinforced multilayer PCB with gold-plated connectors, anti-vibration design
• ESD, transient overvoltage and EMI filtering for harsh industrial environments

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

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Technical Specifications

• Operating Supply: Backplane 24 VDC
• Hardware Revision: VER.A01
• 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 ITC series safety control rack architecture
• Widely applied in thermal power plants, combined-cycle power stations and safety-critical industrial automation
• Used for safety interlock logic processing, protection trip signal management and vital equipment status monitoring