"loopback" counter output without wiring

I will be outputting a pulse on Trig0 line that resides on an AO card, based on that AO card's counter0. The problem I am having is that this AO card itself needs to trigger off this pulse. Is there any way I can do this without physically wiring up some sort of loopback and triggering off a different line for that card? I'm trying to minimize extra wiring if we can do this all internally. Also, I know a 6672 timing module card resolves this, but we're actually trying to figure out if we can do this without purchasing that extra card.