Fire alarm systems need to be inspected, tested and tagged annually. Testing must include all smoke detectors, manual pull devices, annunciators, visual indicators and strobes, control units, voice/alarm communications systems and any other devices that are a part of the fire alarm system.
it will need a port like this one to get more power from the usb since it only give 5.0 volts and this powered usb give up12 to 24 volts so you dont have that in a laptop and there is no way it could raise the power on the usb port in a laptop without damaging something .http://en.wikipedia.org/wiki/Powered_USB.
Instructions. Plug the monitor video cable into your laptop. Verify that you have the correct video output port for the monitor. Most laptops provide either DVI or VGA output. Whereas DVI ports contain a group of holes next to a set of narrow horizontal slits, VGA ports contain holes only.any monitors, but not all, come with cables for both ports. You will have to purchase an adapter if your notebook computer does not have the correct port. Twist the thumb screws attached to the monitor cable head to secure it to the laptop, if necessary. Some laptops do not have holes for these thumb screws.