User guide

Customer display (COM2* or COM4*)
With the BEETLE /M, and depending on how the system is configured,
the customer display is connected to either the COM2* or COM4*
serial interface. The interface connection is a 9-pin D-sub jack. Make
sure that the connector for the customer display is screwed firmly to
the socket to prevent possible malfunctioning. Power is supplied via
this jack.
If COM2 is equipped with a connector, this interface does not carry a
current.
Cashier display (COM3*)
Connect the cashier display to the serial interface COM3*. This port is
a 9-pin D-sub jack.
Make sure that the connector for the cashier display is screwed firmly
to the socket to prevent possible malfunctioning. Power is supplied via
this jack.
Connecting peripherals
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