MEN announces QorIQ CoM has SIL 2 certificate for railways

The rugged CoM Express (RCE) module, CB30C, has been developed by MEN according to railway standards EN 50128 (software) and EN 50129 (hardware). It has received the SIL 2 certification from TÜV SÜD.

Due to its robust design, it is particularly suitable for safety-critical applications, such as in rail or bus transport, but also in demanding industrial applications, says MEN.

The CB30C complies with the requirements of the EN 50218 and EN 50129 standards for software, system and hardware development in railways. Within these standards, the RCE module is now certified to safety integrity level SIL 2 and comes with the appropriate certification package, which includes the safety case and the certification report from TÜV SÜD. The package will simplify the certification process of the final system considerably and will consequently shorten the project time, points out MEN.

To achieve the SIL 2 level, the board is monitored by a specially developed complex programmable logic device (CPLD) supervisor. In case the defined operating conditions like the supply voltage or temperature reach the critical limits, the safe supervisor interrupts the power to the sub-system, ensuring all external communications are stopped. With the on-board event logger error states can be read out and analysed.

In accordance with the Rugged CoM Express standard, the CB30C is embedded in a solid aluminum frame protecting the electronics against environmental impacts like humidity, dust or electromagnetic radiation. The frame also additionally supports operation in the extended temperature range of -40 to +85 degree C via conduction cooling. The complete design is compliant to the EN 50155 railway standard, confirms MEN.

Based on the QorIQ single core P1013 or dual core P1022 processor from NXP, the CB30C runs at up to 1.0GHz. I/O functionality includes up to three Gigabit Ethernet and PCI Express interfaces, two SATA channels, up to four USB ports and UARTs.

The CB30C complies with the COM Express Basic form factor and type 6 pin-out. A COM Express version without the aluminum frame is also available from MEN.


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