LJ WILL accept
dmx in. All you need is the correct cable, which would likely be 5 pin male on both ends, and the two
universe Universal USB
dongle. Then you have to make the appropriate setting changes in LJ.
HOWEVER, LJ had/has some signal
lag when doing this. Last time I did it was with version 2.7.6 I think, and there was a noticeable
lag when we brought a
dimmer up. When going straight from the slave board to the
dimmer rack, it did not occur. They may have corrected this in the most recent version, or it could be you need to adjust the refresh rate on the slave board (which I wasn't able to do).
Going the opposite direction should be possible if the
Strand accepts
dmx in. All you'll need is a cable.