1
Safegua
rds
2
Terms and
Warranty
3
Principl
e o
f
Operati
on
4
Ins
talla
tion
5
Operati
on
6
C
ont
rol Syst
em
7
RF Componen
ts
8
Power
Supp
ly
9
Maintenan
ce
10
Troubleshoo
ting
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 and J105. 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 amplifier/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. 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.
