Dual Dapol Servo Semaphore Signal DCC Controller.
The SC4 is specifically designed to power and control the new Dapol Servo controlled signals which have three wire inputs for each signal. An SC4 can control one, two or a twin head (e.g. Bracket) servo signal and each can easily be assigned any DCC accessory address & run the two arms independently or together in Home-Distant pairs. It also incorporates a regulated power supply to provide a stable safe voltage for the signals from the standard DCC track supply.
Just connect the 2 power wires and 3 switch wires from the Dapol signal directly to the screw terminals of the controller and then 2 wires from the controller to the nearest piece of DCC powered track or the controller - thats it! No separate power supply or wiring required.
 
Features
Connect and independently control one or two signals
One-Touch DCC™ setting up - NO programming of CV codes etc!
Simple 2 wire connection to either DCC track or controller - no separate power needed
Signals connect direct to the module with fitted screw terminals - no resistors etc required
Signals can work independently or mirror another - ideal for home and distant signals!
Works with most DCC controllers with accessory control or computer controlled layouts
Pack contains Signal controller and instructions
Substitute for Dapol 4A-001-002
 
Note: it is very important to only connect Dapol Servo Signals control wires to 'volt free' controllers otherwise permanent damage may result. The SC4 and SC400 have been designed specifically to power and control the new Dapol Servo type OO bracket and O gauge semaphore signals and feature safe optically isolated volt free contacts and a regulated protected power output.