Controller / firmware
Cantaloupe lists minimum controller revisions for the 276/501/522/576 family.
Before ordering
Confirm the exact 501E controller, firmware or EPROM, and MDB wiring before buying the reader or harness.
The 501 family can support modern cashless hardware, but the controller and firmware revision still matter. Check the board before treating it as plug-and-play.
Cantaloupe lists minimum controller revisions for the 276/501/522/576 family.
Confirm the exact 501E controller, firmware or EPROM, and MDB wiring before buying the reader or harness.