Gasboy CFN Series Diagnostic Manual - Manual (Page 135)

Island Card Reader
03/19/04 4-19
S2 - Address Switches
An address must be set up to identify the island card
reader. This address is a unique identifier for when
multiple ICR's are connected on the same RS-485 line.
Up to 8 units can be used on the same line (there are 8
addresses). Addressing should start at 1 and continue
sequentially through 8. The physical wiring order does
not have to correspond with the address order, that is the
first unit on the RS-485 line does not have to be address
1. The chart on the right gives the switch setting for the
address selections. NOTE: The standalone receipt
printer (when used), is addressed as an island card
reader; be sure to use an address different from any
ICR.
S3 - Diagnostic Switch
This switch is used to enable the diagnostic mode of the
ICR. When in the down position, the diagnostic tests can
be started by keeping the face of the ICR open and
pressing the START OVER key on the keypad.