Dear Valdimir:

This definitely help. I will give it a try and see what's the result. Thanks mate!

Hi IO Ninja Team:

I recently purchased an IO Ninja Serial Tap to sniffer RS-232 and UART signal. (Good HW/SW quality, love it!)

RS-232 sniffer looks good for me, but I'm in trouble when sniffer UART signal.

What I do is:

1. Direct connect DB1 / DB2 connector's Tx, Rx, GND to my two UART devices separately.
2. Select switch to UART (TTL)
3. Open software and start to monitor.

Then I see nothing on software.
Kindly is my configuration correct? If not, what's the right configuration, thanks~~~