Block Signalling PPI4-DC Points Position Indicator
The Points Position Indicator (PPI) monitors the brief switching voltage to either of the two coils of a points motor, and displays the last operation using coloured leds that can be mounted on a route mimic.
- Monitors the brief positive operating voltage across points motors when they are switched
- Lights a corresponding led on a control panel to show the last operation of each set of points
- Saves all settings automatically to memory when the power is switched off
- Monitors up to 8 sets of points
- Adjustable led brightness
- No resistors are required simplifying wiring
- Opto-isolated inputs accept voltages from +5V to +25V
- Requires a 12V DC Power Supply
$65.00
