The Atomic rental binding from the past few years is just a Salomon Quadrax binding currently known as the Z series.
Doug - Thanks for your response. Here are some pictures of the bindings. There is no model info on the bindings, just an Atomic label. I was trying to identify/date them and see if they were still in the indemnification list before I take them out for a check. Also, in one of the photos you can see that there's a tear in the plastic housing with the boot sizes. Is this cosmetic damage?