ELAD FDM-DUOr
User Manual - Rev. 1.1 - 04/2016
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6 - CAT USB Serial Port
USB 2.0 port. Connect it to the computer to manage the FDM-DUOr through the CAT (Computer Aided
Transceiver) protocol.
7 - Power Switch
Turns on or off the FDM-DUOr.
8 - Power Connector
Voltage to apply : 13.8V. Maximum current consumption : 0.6A DC.
9 - Expansion Port
DB9 connector for external hardware.
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: DUOr TX
Pin 7: DUOr RX
Pin 8: SPI Data
Pin 9: +5V
10 – Main audio output for speakers and headphones (rear panel)
11 – Ground Connector
For better performance and safety, connect it to an earth ground using a short and wide cable.