Amiga Hardware Database Expansion cards



Oktagon 500 & 508 Manual Photo Software
Company
BSC / Alfa Data, Germany
 Date
1991 / 1993
 Amiga
A500
 Interface
side expansion port
 Autoconfig ID
2049 / 4
2092 / 4
    SCSI 2 controller
  • does not use DMA but interrupt driven programmed I/O
  • 50 pin internal SCSI header
  • DB25 external SCSI connector
  • place for a 3.5" hard disk inside the case
  • connects to the side expansion port
  • autoboot ROM (oktagon.device) - autobooting requires at least Kickstart 1.3
  • ROM versions less than 6.5 may have problems with removable media devices
  • RDB compatible
  • delivered with A.L.F. driver software
  • A-Max II driver
  • supported by Linux
    Oktagon 500:
  • passthrough connector
  • no memory expansion
    Oktagon 508:
  • no passthrough connector
  • sixteen ZIP sockets accept 8 MB RAM
  • supports either static column or page mode 1M×4 ZIPs
  • accepts ZIPs in groups of four giving 2, 4, 6, 8 MB configurations
  • RAM and hard disk can be disabled separately by switches at the back of the case
  • connector for the optional external power supply, though it can use power from the A500

    Photo
    BSC / Alfa Data Oktagon 500 & 508 - Board front side
    Board, front side

    Manual
    BSC-HD.pdf (443 kB)
    Controller Hardware and Software Installation Manual (english/german)
     




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