K1,K2 APS inter operability This topic has 0 replies, 1 voice, and was last updated 15 years, 10 months ago by farhan. Viewing 1 post (of 1 total) Author Posts 18th May 2007 at 12:03 #47333 farhanGuest has any body tested two different vendor equipments for k1,k2 APS protection inter-vendor operablity. Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.