Technalogix TAUD-100, Operating Manual

Page: 33 / 97

Technalogix Ltd Adrenaline Control System
VI-4
The hardware of the Display Interface module is based around microcontroller (U101). This part
interfaces directly with the touchscreen to provide output and receive input from the user. It
also communicates with the RF board (and DC Distribution Module, if installed) over a
Controller Area Network (CAN) bus. This communication is facilitated by U103, and passes
through a CAT5 cable attached to connector J104. The communication link with the RF module
allows the Display Interface Module to receive information about the forward power, reflected
power, and temperature of the transmitter, as well as relay commands from the user to the rest
of the system. If the DC Distribution Module is installed (on higher power systems with multiple
pallets), then the Display Interface receives DC currents from the DC Distribution via the same
CAN bus.
Other elements of the Display Interface module are also controlled by the microcontroller. A
buzzer (BZ101) and software status LED (D101), which flashes when the software /
microcontroller is running, are all controlled through a buffer (U102). DC supply enters through
connector J103, which powers the PCB and also the optional DC-DC converter (based around
U111), if populated. The PCB voltage is regulated at +5V by U106 and associated circuitry. If
the PCB is populated for FM broadcast, then the PWM filter circuit (based around U104) is also
populated and provides a DC output control voltage on pin 3. The touchscreen interfaces to the
Display Interface via connector J107.
The fuses on the Display Interface are all resettable. F102 protects the +5V line while F101
protects the DC-DC converter, if installed.