TFT Controller for BA71 and BA72
Screen Module /TFT Controller
The TFT-controller used for BA71 / BA72 is identical with the one used for
the SNIkey terminal. It is a plug-in-controller with a PCI-interface. There
are two connections for
r
a 50-pin MDR connector with integrated COM5 interface
r
a 9-pin DSUB female (for COM6)
COM5 and COM6 are only ready for operation when the optional
COM board is used.
The control data and data lines for the TFT LCD display are transmitted to
the 50-pin MDR connector via hardware drivers and filters. The cable,
which is linked up to the screen module, is connected to this MDR connec-
tor. The COM5 interface signals (for the Touch Screen) and the loudspea-
ker signal are also on this connector. A loudspeaker cable connects the
beeper of the CPU to the loudspeaker connector of the controller. Please
refer to the chapter “Installation” for further information.
The screen panel next to the MDR connector has a 9-pin DSUB socket
connector, to which the COM6 interface is connected. This is the interface
with the power supply. This socket is always installed, but it will only work
with the Touch Screen version.
Screen Module /TFT Controller
GB - 6
