Using XBee dev kit with netvox devices

I have got XBee module with both USB and serial adapters and I’m trying to use them with Netvox zigbee devices.
I have currently tryed with those end-devices:

I’m pressing self-introduction button on Netvox devices but I won’t get any data coming to my XBee module. Either through usb or serial.
I couldn’t find any way to discover those devices in X-CTU either.

Are there some special configuration I should take a look at? Or maybe some other recommendations?
Thank you.