Cardinal 225D Instructions Manual page 3

IMPORTANT! If the message in Figure 3 appears after connecting the AVR dongle interface
cable to the PC, follow the update wizard to update the firmware. Note that this will require an
internet connection.
Warning! Do NOT connect the ribbon cable to the indicator during this process.
Connecting the ribbon cable to the indicator while updating the firmware may cause the indicator
to fail!
Figure 3
Page 3
8200-0820-0M Rev A • 225D Firmware Update Instructions