This was originally posted on APC forums on 4/24/2008
I've got a 5KV Matrix unit which works nicely with an AP9617 network/monitoring card. I've recently grabbed a 3KV unit off ebay which came with nothing in its smartslot. Which would be the better choice of card for the "new" matrix? The logging of voltage variations is very useful at the moment since we are in dispute with our electricity supplier due to extended overvoltages.