ELAD QSF-06
User Manual Rev 1.0 04/2016
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6
3
Hardware Description
3.1
Front Panel Description
1 – Filter LEDs
Selected filter indication. When a filter is in use, the corresponding LED turns on.
2 – State LEDs
Indication of the current state. The TX led turns on when transmitting and the RX led turns on when
receiving .
3 – EXT I/O
DB9 female connector that allows communication with the FDM-DUO.
This is NOT a standard serial port.
Pin 1: SPI Latch
Pin 2: I2C SCL
Pin 3: SPI Clock
Pin 4: I2C SDA
Pin 5: Ground
Pin 6: Not Connected
Pin 7: Not Connected
Pin 8: SPI Data
Pin 9: +5V
4 – BAND
3.5mm stereo jack connector that provides analog voltage to drive a linear power amplifier
(see section
for details).