See Shows You How Booklet Wiring the Layout No 21 for a comprehensive colour coded diagram.
Peters Spares (Peco PL-21) 4 Pole Double Throw Toggle Switch
Mini Toggle Switch DPDT (reversing switch) Double Pole - Double Throw
Peters Spares PS237 Double Pole Single Throw On-Off Toggle Switch
RKtoggle8 Toggle Switch Module for Switching Solenoid Points for use with CDU - Designed for Hornby, Seep, PECO, Bachmann layouts - Constructed
Mini Toggle Switch SPDT. Point Control Switch.
PECO ST-2005 Isolating Standard Straight & Switch 168mm Setrack OO/HO Track