SRV4 Servo Controller (4-channel) 12v dc Monitors trains entering and leaving

Monitors trains entering and leaving a protected section of track

A compatible plug in power supply can be purchased from the BLOCKsignalling website here

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

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

SRV4 Servo Controller (4-channel) 12v dc Monitors trains entering and leavingThe 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