just finished installing about 65 sa 6940/6942 nodes 2 weeks ago pretty straight forward nodes. The only issues i had with the nodes were be carefull when inserting and pulling out the pads the pins have tendancy to brake then your f%#@.! remember to install splitter to activate midlle ports on both ends for rf, carry xtra mods and carry xtra trms/ and rcvrs i had alot of faulty trms and rcvrs. Also i have had faulty boards where your fiber combiner and trms/ rcvr are plugged in . good luck!