Who is SW Architect?

5 month ago i was promoted to new position - System Architect. From the first look no big difference with TL but after some time, i realized a big difference especially of level of involvement in project details. Right now i am handling two big projects for one of our customer and quite difficult to care about all in details. I'm trying to handle cross component connections and issues what i suppose most critical for the product since TL should handle component related details. Also i am trying to lead TLs what is really critical for us. I have big experience in lead teams so all my attention now is to help TLs to manage and lead people to achieve their goals.