The optional regulator accessible using a dipswitch can accept an input of up to 16v. The output is 5.2 volts with a protecting circuit. If you prefer to not use the regulator it can be bypassed.
Instead of a Y-harness or an X-harness to connect all the servos and doors at once, this unit has 6 outputs. 2 outputs for the mains, one for the nose or tailwheel, and 3 for the doors.
Typically the main gear on full scale planes do not raise or lower exactly the same, they are staggered. The WRC RRS raises and lowers the gears in a scale way.
The RRS can be programmed in a variety of ways to raise and lower the doors. You can use a servo to raise and lower the doors and plug the servo(s) into the RSS. The RSS will allow you to raise the doors when the gear is down like many jets require. The gear doors drop first, then the main gear drop, then some of the doors can be closed. Then to raise the gear, the RSS will open the doors, raise the main gear, and then close the doors. Very slick indeed!!
Each servo can be reversed if necessary to make everything work together.
LOW VOLTAGE FAILSAFE
If the battery voltage to the receiver gets too low, the gear is put down automatically! This ensures that the gear has enough battery power to go down, and it notifies the pilot that the Rx battery is low. If you see the gear come down while you are flying, it is time to land!
The RSS will not allow the retracts to be retracted while on the ground when powering up the Rx. If you have the retract switch in the wrong position when you turn on the unit, it will not pull up the retracts so that the plane doesn’t slam onto the ground by mistake. A very nice feature for pilots with lots of planes and transmitters with lots of switches. Sometimes it’s hard to remember what switch does what.