doubt regarding relay connection | Electronics › Electronics › doubt regarding relay connection This topic has 0 replies, 1 voice, and was last updated 11 years ago by bobby. Viewing 1 post (of 1 total) Author Posts March 9, 2012 at 1:24 pm #4764 bobbyParticipant i am doing a project on room light controller using 8051..i am using a pcb relay for controlling the light..i have a doubt regarding the relay pins…. i have a doubt regarding which are the coil terminals and which terminals are nc ,no and common!! i am posting a picture of it! pls help!! Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In