WS6318 can loop the data back

Legacy Legacy AirPrime modules
1

Good evening!

I have noticed that sometimes (I noticed it only one time) WS6318 module malfunctions. I made it enter the data mode and send data to it but the module doesn’t pass it through (the Tx_Cntrl line is low - no blinking). It looped it back. I decoded the signal on the output UART line on the oscilloscope and determined that the output data is equal to input data.

Had anybody faced with such a problem?
Thanks a lot!

Best regards,
SANEL

2

Good day!

A little remark.
I have determined 2 WS6318 modules that works that way already. They receive data and loop it back immediately. No GPRS data transmission. Switch off and on sequence helps.

Best regards,
SANEL