How to power USB-C board with standard DC

Hi, I would like to power an embedded board that has USB-C input using a power supply with 5VDC output (8A).
The cable I am using does not have the USB serial port but only the two 5V and GND signals.
With this configuration the board does not turn on completely: is it possible that some sort of negotiation between the power supply and the board is necessary to guarantee the 2A current input?
How can I solve the problem?

Attached you can find the board datasheet.

Regards,
Giacomo