Prototype: German Federal Railroad (DB) standard design distant signal with additional light. Distant signal with 3 settings: "Prepare to Stop" - yellow/yellow (Vr0), "Prepare to Proceed" - green/green (Vr1), and "Prepare to Proceed Slowly" - green/yellow (Vr2). The white additional light means that the distance between the distant and the home signal is less than the regular braking distance.
Model: The signal has an integrated electronic signal circuit. It can be connected to the separate signal decoder of the home signal to which it is assigned. It can be used for all home signals. All of its functions can be controlled from the signal decoder for the home signal. For digital operation, the signal decoder for the home signal assigns the configuration and the address. Height without base 61.0 mm / 2-3/8".