Our Springdale is the fifth wheel version of your TT model. Ours is a 2011 year model and we had no battery disconnect switch from the factory, I installed my own. It is usual to add features during model changes, not take away, so I'd be suprised if yours came with a battery disconnect switch. If you're the original owner, I'd almost bet there isn't one, but if you bought it from someone else, they may have installed one.
If you decide you want to install one, there are a number of threads here discussing the how's and the why's of battery disconnect switches and installing them.
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS