If the switch is pressed a second time and held for 2 seconds, the power will turn off. The auxiliary output power connector for external drives is also switched on and off with this circuit. The board also has 4 12-bit analog output channels. The direction of each port is programmable. Connectors for all external connections are panel-mountable.
Some cables are also available individually.
Some customers design their own cables and harnesses optimized for their particular application. To assist with this effort, all connector pinout and mating connector information is provided in the Prometheus user manual. You can also mount the CPU as a component on your own baseboard. In this configuration the CPU is flipped over and mounts with the top side facing down onto the baseboard. The resulting benefits are lower cost, higher reliability, and shorter assembly time.