9xTend + pixhawk connection !!

Hello all ,

I just get Digi 9xTend 900 Mhz and I want to connect it to my pixhack ( chines pixhawk )

3691277042?profile=original

I can't configure the 9xTend and connect it to the XCTU software using TTL ,

the pin out of the 9xTend is :

pin 1= GND

pin 2 = VCC

pin 3 = GP02/RX LED

pin 4 = TX_PWR

pin 5 = DI ( Data In )

pin 6 = DO ( Data Out )

pin 7 = SHDN

pin 8 = GPI2/Sleep

pin 9 = GPO1/CTS/RS-485 TX_EN

pin 10 = GPI1/RTS/CMD

pin 11 = CONFIG/RSSI

others pin are reversed

my connection is like

TTL   ----> 9xtend

----------------------------

GND ---> GND

VCC ---> VCC

TX -----> DI (DATA IN)

RX -----> DO (DATA OUT)

I am not sure about the other pins

I connected others as

TTL -------> 9xTend

CTS --->  Pin 9  GPO1/CTS/RS-485 TX_EN

DTR ---> Pin 10 GPI1/RTS/CMD

after connect to my pc and open the XCTU software and try to connect with baud rate = 9600 and 57600  and all can't connect I get this msg

3691277255?profile=original

Hope I can find help in how to connect it with my computer ,

Best regards ,.

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