Where do network cameras fit into my surveillance system?
Network cameras have digital inputs and outputs (I/O). Digital inputs that are connected to alarm devices or sensors can, for instance, be used to trigger the transmission of images from a camera to a select destination for recording, or request that e-mail alerts be sent, for example, to a mobile phone. Digital outputs enable you to remotely, or automatically upon alarm, close or open doors, turn lights on or off, or control other devices. Network cameras also have image buffers that can save and send the images collected before an alarm occurred.
