The VIVOTEK VS2403, supporting four analogue video inputs and four sets of DI/DO, delivers real-time MJPEG video streams for remote monitoring any where. Using Philip Trimedia PNX 1302 DSP, and equipped with 4MB flash ROM and 32MB SDRAM, the performance enhancement of VIVOTEK VS2403 offers you the best choice to build up an IP-based surveillance system with a great many of powerful features. Not only can users set up to 3 sets of motion detection windows, but also get pre/post alarm snapshots up to 15 images per channel, as well as receive high quality image of 4CIF. Further more, it comes with a web server so that users can easily have pan/tilt/zoom camera control, quad screen display, privacy mask support, access levels with password protection, and IP address filtering.