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.
If your laptop has a DVI port, use it as it delivers better graphics than the VGA. If it does not have a DVI port, use the VGA cable. Note that the instructions are the same regardless of what cable you use. Connect the cable to the laptop's port, then connect it to the Sony Bravia.The ports for both devices are typically found in the back of the device.f it does not have a DVI port, use the VGA cable. Note that the instructions are the same regardless of what cable you use. Connect the cable to the laptop's port, then connect it to the Sony Bravia. The ports for both devices are typically found in the back of the device.