80 AMP power controllers?

Greetings. I may have the need to drive a piece of networking equipment with a DC input requirement of 80 AMPS, possibly 90. For remote management, we need the capability to power cycle the box remotely through dial-up. There will be redundant power, so two 80 AMP feeds will be required. Sentry has a box that can split two 100 AMP feeds into two 70 AMP feeds toward our equipment. That's about as high as I can find. What do the larger carriers use? (Or to they just use remote hands at the POPs when necessary. Thanks! -Chris -- Chris Robb Indiana University