Product Overview

• Part No: VIIB16-C, 12011-105-00, V1.0.0
• Brand: ALSTOM

• Category: VIIB16-C 16-Channel Digital Input Interface ModuleVIIB16-C 12011-105-00 V1.0.0 is a standard Eurocard plug-in digital input module developed by ALSTOM. V1.0.0 indicates the embedded firmware version.This module provides 16 channels of digital signal acquisition. It collects binary status signals from field sensors, valves, actuators and interlock switches, performs signal conditioning and opto-electrical isolation, and transmits processed status data to the main controller via rack backplane bus. Galvanic isolation effectively suppresses external electromagnetic interference and prevents ground loop disturbance. Equipped with channel status LED indicators for convenient on-site troubleshooting. It is a reliable maintenance spare used for overhaul of power plant turbine governing systems and industrial automation control cabinets.

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Core Features

• 16-channel isolated digital input for field binary status collection
• Optoelectronic galvanic isolation between field circuit and internal control circuit
• Front panel LED indicators for individual channel operating status
• Built-in signal filtering to eliminate contact bounce and noise interference
• Standard Eurocard draw-out structure supporting rapid on-site replacement
• Reinforced multilayer PCB with gold-plated edge connectors for anti-vibration performance
• ESD and transient surge protection adapting harsh industrial environments

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

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Technical Specifications

• Operating Supply: 24 VDC backplane power supply
• Firmware Version: V1.0.0
• 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 turbine control and industrial automation rack architecture
• Widely deployed in thermal power plants, combined-cycle power stations and captive power facilities
• Applied for collection of valve feedback, equipment running status, protection interlock and alarm switch signals