M-Max 400 ST/USO - Rugged Industrial Error-free Computer with UPS Subsystem

• Ruggedized dual-CPU computer for error-free signalling processing
• ‘2 out of 2’ architecture
• Full compliance with CENELEC SIL 4 specifications
• UPS uses ultracapacitor power source
• CPUs and UPS inside low-maintenance fanless enclosure
• Operating Temperature -40 to +60 °C
• Shock handling up to 6g, Vibration up to 2g

The Max 400 ST/USO is an error-free rugged computer for on-board and off-the-shelf applications. It is built to provide error-free signaling information processing, based on 2-out-of-2 architecture in full compliance with CENELEC SIL4 specifications. The Max 400 contains two identical subsystems connected to each other via internal interface. Each subsystem has its own processing core and a UPS employing an intelligent ultracapacitor-based charging device.
The Max 400’s two independent CPUs form a vital processing core and perform calculations (such as interlocking logic) in different ways. Once per cycle they are synchronised with each other to exchange data and perform consistency cross-checks. The UPS ultracapacitors provide the system with 70 seconds of backup power. The system is designed for use on stationary objects within a railway infrastructure.

  • Technical specifications:
  • Interfaces:
  • 2x Dual CAN
  • 2x RS-232
  • 2x RS-422
  • 2x RS-485
  • 2x Ethernet 10/100 Mbps
  • Power: +9…+40 VDC
  • Power Consumption: 2x 12W (Maximum 2x 50W)
  • Enclosure:
  • Aluminum enclosure
  • Passive cooling system (no fans)
  • Mechanical (W x H x L): 294 x 145 x 208 mm
  • Environmental and physical specifications:
  • Dust/Moisture: IP50

MicroMax, founded in 1979, is an engineering company, designing specialized computer systems for mission critical applications, with customers in the transportation (rail, marine, air) & various industrial/ manufacturing enterprises. MicroMax also maintains offices in Russia. Representing over two dozen manufacturers of computer boards and specialized electronics for automation/control, enables MicroMax to offer the best prices, state of the art equipment, knowledge of the marketplace as well as the latest technological developments to our clients. •Extra durable ruggedized computers protected from dust, moisture and other environmental hazards designed to perform in all environments under almost any condition from the rigors of an offshore oil rig to the intense shock and vibration of a space shuttle. •Subsystems for Computer Based Interlocking (CBI)/Automatic Train Control (ATC) railroad applications, in full compliance with CENELEC SIL4 spec with extraordinary immunity to all kinds of disturbances. •On-board/field multifunction systems for use in harsh environments, with very high MTBF/MTBS •Design/production of customized enclosures for harsh environments including ATR type enclosures / systems for avionics •Rugged Embedded SBC designed and built with all components approved to operate in the -40°/+85°C range, with a high degree of shock/vibration protection and special conformal coating to protect boards from moisture and other corrosive substances, with a high MTBF

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