Are we having dedicated signaling channel in secondary cell group of Rel14?

Question

As i know UE can trigger RLF on PScell but can it trigger on secondary Scell .

Answer 1

No, signaling in SCG is not allowed. Only MCG can handle the signaling. i don't know the reason why this restriction but spec says it is not allowed. All signaling should go via MCG and MCG will transfer the particular request to SCG.
As per my understanding UE doesn't require to send an signaling to SCG because all context transfer happened via X2 interface between MCG and SCG.