[[Image:KDS-PowerControlerHas 8 relays, to control lights, fans, robots etc.jpg|thumb|right|400px|The KDS Power Controler]]
Not much == Technical == Connects to the 34pin [[Printer Port]]. The first 7 relays are controlled by the seven Centronics Data lines, the eight relay is known about this device please write more!controlled by Centronics Strobe signal. The relays can be thus controlled by writing an 8bit value to Port EFxxh. Observe that the CPC hardware inverts the strobe bit (so bit7 has opposite meaning as the other bits). The relays are rated 7A/120VAC, 7A?/24VDC, 5A/240VAC. Each relay has three contacts (common, position 1, and position 2). The relays are driven by an external 7.5V power supply (required since the printer port does not output supply voltages). == Pictures == <gallery>File:KDS Power Controller (Top).jpg|TopFile:KDS Power Controller (Bottom).jpg|BottomFile:KDS-PowerControler.jpg|Two unitsFile:KDS Power Controller (power supply being used).jpg|Used supplyFile:KDS Power Controller PCB (Top).jpg|PCB (Top)File:KDS Power Controller PCB (Bottom).jpg|PCB (Bottom)File:KDS Power Controller PCB (Side).jpg|PCB (Side)File:KDS Power Controller Instructions.jpg|Instructions</gallery> == Manual == * [[Media:KDS Power Controller Instructions.jpg|KDS Power Controller Instructions]] (1 page) [[Category:Printers and printer ports]] [[Category:Peripherals]]