Advanced Digital Research, Inc.
factory owner
ADR's Behind the Tape Reader (BTR) adapter is the ONLY way to connect older NC or CNC to your network of factory PCs.

ADR BTR - The hands down Winner!
  • DNC software providers sell ADR BTRs.
  • ADR has thousands of satisfied customers.
  • The truly universal BTR.
  • BTR Specification:   page 1   page 2
  • DNC Concepts and terminolgy
  • Frequency Asked DNC Questions

  • BTR manual and Serial I/O software Download

    Get Technical Support on BTR setup, cabling

    {ADR BTR picture}

    The World's Best BTR

    BTRs & DNC Systems
    Advanced Digital Research, Inc. is the leading supplier of DNC solutions, including BTRs and DNC devices.

    Price List and special offers

    ADR BTR Services Repair and Exec File conversion

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    Floppy Disk Emulators
    Replace your floppy drives before they fail!
    {Network Floppy Emulator picture} Network Version

    Floppy Emulator connects to PC via Ethernet

    {USB Floppy Emulator picture} USB Version

    Floppy Emulator connects to PC via USB