NI 9403 timing hardware or only software

I'm confused on the NI 9403 documentation is it only software timing control? The specs say the 9403 cannot route clock and timing signal --> does this mean you cannot use hardware timing/triggering? Whenever I use a clock for acquisition the data always times out.

Looking for someone to confirm that this is how the 9403 functions on software timing only, using hardware clock, I don't get errors until the timeout occurs.