On my trailer I have 2 plates in the ceiling over the dinette shelf for the tv. One is for cable in and has the antenna booster the other has the 2 connections for the prewired satellite cable. One connection is for incomming satellite. The other is the send satellite signal to the bed room. In the bedroom I have a wall plate with 2 coax connections. One is for the tv antenna the other is for satellite comming from the dinette. There are 4 connection options.
1. Leave the jumper connected and put the satellite receiver in the bedroom. There will only be satellite viewing in the bedroom and no satellite service at the dinette.
2. Remove jumper and connect the satellite receiver at the dinette with no satellite signal to the bedroom.
3. Remove jumper and connect the satellite receiver at the dinette. Connect the satellite out coax connection on the receiver to the bedroom connection to proved satellite signal to the bedroom. Connect the satellite connection in the bed room to the bedroom TV using coax. You will need an A/B switch in the bedroom connected backwards to switch between satellite and local stations if you want to connect to the cable/antenna connection in the bedroom.
4. Remove jumper and connect the satellite receiver at the dinette only to the satellite in connection on the plate. Connect the satellite receiver to the tv in the bedroom using an HDMI cable or the RCA connectors on the satellite receiver.
I used option 4 with the dinette tv connected to the satellite receiver using an HDMI cable and the bedroom TV connected to the satellite receiver using a flat 20 ft RCA cable stapled to the ceiling. I may install a plastic wireway in the future for the RCA cable but for now it works for me.