EOH = Electric Over Hydraulic
I have seen kits available to convert your TT drum brakes to disk brakes. TT drum brakes are activated by electrically controlled magnets, the more current applied, the more braking achieved. The disk brakes, like the ones on your tow vehicle, are hydraulically operated, the more hydraulic pressure, the more braking achieved. The disk brake conversion requires a brake fluid reservoir controlled by an actuator controlled by the brake controller. Just as brake controllers are rated by the number of axles, not all brake controllers are not rated for electric over hydraulic.
Charlie & Lizzie the Mini Dachshunds
2008 Jayco Eagle Super Lite 30.5 RLS
2006 F250 XLT Xtra Cab Long Bed 6.0 Diesel
24 hours in a day, 24 beers in a case. Coincidence? I think not.