IEEE/FRA – DOT Crashworthy Memory

• SIL4 SYSTEMS – KEYSTONE™ DataVault
• High Density CHM released in 2017
  High Density Crash Hardened Memory Module [HD-CHM]
  Rail Transit Ready Platform
  IEEE and FRA Compliant
  Industry leading Performance/features and Density
  REDD, Redundant Storage Feature (optional)
• SCALABLE HIGH DENSITY MEMORY
  HD-CHM: 64GB; 128GB; 256GB; [512GB available 4Q19; 1TB available 1Q20]
  HD DIMENSIONS: 6″ x 6″ x 5.00″ [152mm x 152mm x 127mm]
  Part Numbers:
  • SIL4-CHM-xxx      (xxx-0GB)
  • SIL4-CHM-064    (64GB)
  • SIL4-CHM-128     (128GB)
  • SIL4-CHM-256    (256GB)
• WEIGHT: ~16LBS [7.25kg]
• STANDARD SIZES: 1, 2, 4, 8, 16, 32GB
  STD DIMENSIONS: 6″ x 6″ x 4.75″ [152mm x 152mm  x 120mm]
• ADVANCED FEATURES (INDUSTRY LEADING!)
  COMPREHENSIVE POWER OUTAGE PROTECTION :  SIL4 has implemented a unique set of comprehensive data protection mechanisms that function before and after a sudden power outage to the CHM.  Low-power detection terminates data writing before an abnormal power-off, while table-remapping after power-on deletes corrupt data and maintains data integrity. SIL4 provides effective power cycling management, preventing data stored in flash from degrading with use.

ERROR MANAGEMENT:  The SIL4 HD-CHM implements a hardware low-density parity-check ECC scheme, based on the BCH algorithm.  It can detect and correct up to 40 bits error in 1K bytes.

BAD BLOCK MANAGEMENT:  Bad blocks are automatically detected and flagged. Once flagged, the block will no longer be used, and error correction will be used to transfer the existing data on the block to a spare block.

• COMMUNICATIONS INTERFACE
  STANDARD: USB 2.0, 3.0, Ethernet
  HD-CHM Ethernet or PoE
  CONNECTOR: 4 or 8 pin M12 Connector
  CABLE LENGTH: up to 24″ or M12 on Box
  FILE SYSTEM: FAT32, NTFS or custom
  Compatible with widely used Linux distributions and all USB mass storage host systems.
• DEMONSTRABLE HIGH RELIABILITY
  WRITE CYCLES: 3,000
  DATA RETENTION: 10 YEARS
  MTBF > 2,000,000 HOURS error correction and wear leveling
  DATA RELIABILITY:  It can detect and correct up to 40 bits error in 1K bytes.
  Unique S/N for each unit
  Optional RoHS and WEEE compliance.