TEX1000-LCD
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User Manual
Rev. 1.1 - 23/06/05
This interface is designed in order to allow to take the MAINS signal from the telemetry
connector and, in the case MAINS voltage lacks, in order to allow to send a message
after an adjustable time of 5÷30 min. (by factory is set at 15min.). The system provides
to the operations regarding the send on of SMS of alarm when the set up period is
passed; therefore the relay placed on this card is released and switches off the CPU
and the Modem in order to maintain the battery.
8.4 16-bit cpu card (Opz. /TLM)
This card is the heart of the transmitter as it handles and processes all information
provided by the other cards and by other devices connected through the serial interface
or the telemetry card.
The 1Mb Flash Memory enables firmware update through direct connection of
TEX1000-LCD
RS232 output to the serial port of a PC.
Card specifications are as follows::
•
Microprocessor:
90F543G
•
Flash Memory size:
1MBytes
•
Static RAM size:
32KBytes
•
Communication Interface:
RS232 e I
2
C Bus
•
EEPROM size:
2KBytes
No regulation is needed from this card.
8.5 Telemetry board
This card is the input/output CPU interface with external world. All the available input
and output signals are replied on the DB15 “REMOTE” connector (see cap. 6.3.2).
On the same board there is also the BNC connector of interlock to disable device.
Closing the central pin to ground, the output power is reduced to zero until connection
doesn’t removed.
When it is used with a R.V.R. amplifier, this connector is connected, through a BNC-
BNC connector, to REMOTE or to INTERLOCK of the power amplifier. In case of
breakdowns of the amplifier, the central conductor is place to ground forcing the
device to enter in stand-by mode.
8.6 Main board
The main card carries out the following functions:
•
Audio and SCA input handling
•
Generation of carrying frequency
•
Modulation
