Spacing KK254 Molex connector2 pin Molex header 2.54 mm spacing R23, R24, R25, R27 Switch, triple pole double throw, illuminated paddle, http://www.nkkswitches.com/pdf/gwillum.pdf switch single-pole double-throw ON-OFF-ON D Single Pole Single Throw (SPST) switch, small symbol D 7x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D 7x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D Push button switch, generic, separate symbols, four pins.