Ericsson R2106 BBU This topic has 0 replies, 1 voice, and was last updated 17 years, 3 months ago by Hong. Viewing 1 post (of 1 total) Author Posts 27th June 2007 at 06:26 #47991 HongGuest Need help..any idea to solve the BBU fault as BBU control (PCB) LED lighted (red)and indicated as CLU failure. Pls help….. Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.