DUT Control issues of Anritsu MT8852Bhttps://devzone.nordicsemi.com/f/nordic-q-a/75056/dut-control-issues-of-anritsu-mt8852bHi, I&#39;m use the Anritsu 8852B that be production flow. My hardware setup is OK that be verifyied by DTM tool. &quot; Bluetooth low energy Measurement Software &quot; always show &quot;DUT can&#39;t control&quot;. What is the protocol setting; HCI RS232, USB 2-wire, USBen-USTelligent Community 13Wed, 12 May 2021 11:43:30 GMTRE: DUT Control issues of Anritsu MT8852Bhttps://devzone.nordicsemi.com/thread/309470?ContentTypeID=1Wed, 12 May 2021 11:43:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:84dcc226-09c7-4a43-81ac-f48d90b058b9H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>With DTM, you should use 2-wire, 19200 baud rate (no flow control).</p> <p>Note that you need to connect a RS232-converter between your board and the tester.</p> <p>&nbsp;</p> <p>I would recommend that you first see if you can get the DTM running using nRF connect for desktop -&gt; Direct Test Mode, to ensure that you have the setup verified; then connect it to your dedicated tester.</p> <p>&nbsp;</p> <p>Kidn regards,</p> <p>Håkon</p><div style="clear:both;"></div>