PureLink DTS50R Owner's Manual page 8

4. Connect the power supply unit to both DTS50R AND the DRS50R units.
5. Turn on Display
6. Turn on Video Source
Cable Termination
IR cable
DTS50R/DRS50R supports both 5V and 12V and it can be selected by IR voltage
switch on the side of the unit. Please choose the voltage that IR cable requires.
(Factory default is 5V)
Please refer below for the IR cable termination;
RS-232 cable
Please refer below for the RS-232C cable termination;