Keri's PXL-500 Tiger II Controller hardware platform provides sophisticated access control solutions for up to 256 doors at a single site and thousands of doors spread over a number of remote sites. The unique architecture and latest multiprocessor, RISC-based design techniques allow Keri to offer the system hardware at a lower cost compared to other manufacturers. It also contains many features that simplify and significantly reduce the cost of installation. The system is managed by Keri's Doors for use with Windows software.