Welcome to the forum.
I don't have any specifics on this brand, but not all RV's have a battery disconnect. I had to add one on my 2018 TT.
Some use a a manual disconnect switch, others use a solenoid with a remote switch, and some like mine have no factory disconnect.
Hopefully someone with brand specific information will answer you. It would help if you post the full model of your trailer in your signature or post. I'm guessing based on the length indicated, its an M-2115.
2018 Forrest River Salem Hemisphere 282RK - 2017 RAM 1500 TV
Previous RVs and TOADS
2004 Fleetwood Bounder 32W on WH W20
2000 Four Winds 5000 21RB
1986 27' Allegro
TOADS
2005 Ford Ranger XLT 2WD
2004 Suzuki Aerio
1988 Chevrolet Sprint