Sielox Access Control of Runnemede, New Jersey, has introduced the 1500 Series controller. The AC-1500L manages from two to 16 doors in a large configuration, while the AC-1500S controls two to four doors. When used in conjunction with the Sielox X-LAN, up to 32 doors can be managed with a single Ethernet connection. The 32-bit controller has a power supply/UPS module in case of power failure. It can communicate directly with Pinnacle hardware server via Ethernet or RS-485.