The Panasonic BB-HCS301A camera server has an SD card slot which allows you to record images directly from the camera to an SD Memory Card (sold separately) in the server without going through the network. Or to monitor comings and goings, you can use the camera's motion detection function to record an image every time something moves.
A video server digitizes analog video signals and sends digital images directly over an IP network, such as a LAN, intranet or Internet. It essentially turns an analog video system into a network video system and enables users to view live images using a Web browser or video management software on any local or remote computer on a network. It allows authorized viewers from different locations to simultaneously access images from the same analog camera, as well as network/IP cameras if they are added to the system.