Expected CTS and RTS Behavior on Telem1

I’m trying to diagnose a flow control issue w/ Dragonlink. There is no guarantee that the DL RX is working, but I need to know what the expected behavior for the Telem1 port when CTS/RTS is enabled. As for the CTS/RTS lines, what voltage should they be at? Does the radio or the Pix raise either CTS and/or RTS? I just need to make sure that the Cube and the Kore carrier are functioning properly. So, what should I see?