ALSTOM ESVI1 L54E1100BB Logic Analog I/O Card

Technical Data Overview

The ALSTOM ESVI1, bearing the part number L54E1100BB, is a high-performance I/O interface specifically developed for the rigorous demands of railway signaling and infrastructure control. This module serves as a critical bridge between field sensors and logic controllers, providing precise acquisition of analog signals within rail transport networks. By utilizing a 16-bit Analog-to-Digital Converter (ADC), the card achieves high-resolution signal processing, which is essential for maintaining the safety and efficiency of modern train control systems. Its architecture prioritizes signal integrity, ensuring that vital process variables remain accurate even across long-distance cable runs.

Technical Precision and Signal Protection

In terms of measurement capability, the ESVI1 L54E1100BB supports a versatile input range of ±10V DC for voltage sensing and ±20mA for current loops. The module maintains a notable full-scale accuracy of ±0.1%, which facilitates the granular monitoring required for mission-critical signaling applications. To safeguard the internal logic from field-side electrical disturbances, Alstom has equipped this card with four optically isolated channels. These isolated paths effectively block transient surges and common-mode noise, preventing interference from compromising the system’s decision-making logic.

Environmental Durability and Form Factor

• Extreme Climate Tolerance: Designed for outdoor and trackside installations, the module operates reliably from -25°C up to +70°C.
• Moisture Resistance: The hardware handles humidity levels up to 95% RH (non-condensing), protecting sensitive electronics from damp environments.
• Compact Integration: The physical dimensions of 5 x 24.5 x 17.7 cm allow for high-density mounting in standard railway equipment racks.
• Robust Storage: A wide storage temperature range of -40°C to +85°C ensures the component remains viable during long-term spare parts inventory.
• Reliable Construction: Despite its lightweight 0.38kg build, the card features a durable assembly designed to withstand the vibrations typical of rail infrastructure.