Elettronika AUTV/3500LD, User Manual

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1.1 CONTROL SYSTEM OVERVIEW
The control system is made up by some “Slave” boards, which check locally the amplifier modules, and a
“Master” board to monitor the status of the Slave boards in each module and show on a graphic display all
the checked parameters.
The number of the Slaves changes depending on the output power of the amplifier. The communication
between Master and Slaves is made via RS485 standard. The Master board reads the overall parameters of
the equipment (Forward and Reflected power and Unbalancing), polls (interrogaes in sequence) the local
boards, shows on the display the values requested by the user, indicates alarm conditions, if any, and allows
to change some of the operating parameters of the apparatus. Besides it realizes a serial data interface to an
external system able to analyse the working parameters of the equipment, using the RS232 and RS485
communication protocols.
1.2 FUNCTIONS
At start-up, the display of Amplifier Control module shows an informational message concerning the equipment
and its firmware version.
- Main menu
The main menu has: a list of the amplifier modules, the measure of some parameters of the power in antenna,
a window with icons to show the alarm status (Alarm Status Window) and some general information, that is
date, time, temperature inside the module and, for FM equipment, transmission frequency.
The following picture is an exact representation of the main menu screen.
AMPLIFIER CONTROL
O
MICROPROCESSOR CONTROLLED SYSTEM
RS232