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MCAA11R1BC9001C

The Alstom MCAA11R1BC9001C is a high-availability control module designed for mission-critical railway automation systems. This advanced unit serves as a key component in Alstom's signaling and train control architectures, delivering SIL4-certified performance for vital rail operations.

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Key Features
1. Safety-Critical Processing

Dual-lockstep ARM Cortex-R52 cores

SIL4 compliance (EN 50128/50129)

<100μs deterministic response time

2. Robust System Architecture

Triple modular redundancy (TMR) design

2GB ECC-protected DDR4 memory

Secure boot with cryptographic verification

3. Railway-Specific Design

EN 50155 compliant (-40°C to +70°C)

EN 61373 vibration category 1

IP65-rated front panel

4. Advanced Connectivity

4x Gigabit Ethernet (TSN-enabled)

2x CAN FD channels (5Mbps)

Optical isolation on all I/O (2.5kV)

Technical Specifications
Parameter Specification
Processor Dual-core ARM Cortex-R52 (lockstep)
Safety Integrity SIL4 (PFH <10⁻⁹/h)
Memory 2GB DDR4 ECC + 64MB FRAM
Power Supply 24VDC (18-36V), 20W max
MTBF >300,000 hours
Dimensions 3U 19" rack module (133×482×400mm)
Applications
Electronic interlocking systems

ATP (Automatic Train Protection) centers

RBC (Radio Block Center) interfaces

Hybrid Level Crossing control