Hey, can anyone help me with this circuit picture, how does this electric circuit relate to the aircraft pic?

Question

http://www.flickr.com/photos/98788373@N00/33840414...

Can anyone tell me how each item relates to the other???

How could it be used on a typical aircraft system???????

please can someone help me out??? Explanations would be nice.

Thanks

Answer 1

Favorite Answer

DC power supply on/off switch and indicator to left powers components to the right. Electromagnetic relay switch turns motor load on/off controlled by remote switch. Relay is used when the coil control switch itself is not designed to switch the required load type and a remote isolated control switch is needed. The central electrical interface bus connects and distributes power, control, sensor and load components.

Example: Pilot turns ventilation fan motor on/off in tail of aircraft from cockpit switch. DC power supply was switched on and indicator "on" checked during pre-flight check out procedures.