New smoke alarms

[DIY GUY]

Hello I’m just double checking I’ve done this correct. These are my two old smoke alarms that I’m replacing. My new alarms have terminals N IC L.

I have put my two reds into L 

black blue into N  

yellow into the IC, I take it the IC is the part that link the two alarms together so that If one goes of so does the other? 

Think ive done it correct it was just to get piece of mind that I have. Thanks 

 

[Evans Electric]

It sounds correct to me Paul ,  the IC  is the Inter Connection  and if it was the yellow before then you're good to go . 

 

[DIY GUY]

Thank you