+24 & -48V grounding This topic has 1 reply, 1 voice, and was last updated 14 years, 4 months ago by Fresh Opt. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 15th September 2010 at 05:37 #64290 praveenGuest Are it possible to tie +24 & -48V ground together, we have a site where the power technician tied +24 & -48V ground together we facing problem in the particular site like dip error. What happened if they do like that? 15th September 2010 at 11:29 #64291 Fresh OptGuest Hi, If I’m correct, your system works with -24 V (-48+24=-24)and that’s why you have problem in that site. Regards, Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The forum ‘Telecom Design’ is closed to new topics and replies.