I believe this is a circuit to show which way points are set.
BLOCKsignalling PPI-KATO Points Position Indicator for KATO & LGB Turnouts
BLOCKsignalling PPI4-DC Points Position Indicator Peco Seep Guagemaster Motor
50 Pcs 1N5401 Silicon Diode 3A 100v Model Railway Points Signal Control 63g 910
BLOCKsignalling PPI5 Points Motor Position Indicator for DCC Accessory Decoder
BLOCKsignalling PTS1 Automatic DC Shuttle for Points Motor Fiddle Yard
