SRV4 Servo Controller (4-channel) 12v dc Allows signals to be forced

Allows signals to be forced to danger via an external input

Automatically sets the entry signal to danger (red) and isolates the section to stop trains

Can be powered using either a standard DC power supply with positive and negative output cables or a plug in DC power supply

It automatically operates a model train back and forth along a defined section of track

Wiring Diagram

SRV4 Servo Controller (4-channel) 12v dc Allows signals to be forcedThe BLOCKsignalling Smart ServoSwitch SRV4 is designed to operate up to four servos, moving each one smoothly between its preset start and stop positions whenever a control input is activated. It provides a flexible and reliable solution for controlling servos used in points, signals, and other layout mechanisms. All key parameters for each servo, including start position, stop position, and movement speed, are easily adjusted using the built in