Check the listing for details. Avigilon Openpath OP-CR-ACC OP-ACC Access Control Core. Condition: New – Open box, Made in Taiwan. Listed at 296.65 USD. Alta access combines sleek hardware with an app, enabling employees to enter the building using their smartphone. This Avigilon Access Control Core works with expansion boards to securely make all entry decisions. Take advantage of Alta's touchless access control, fast and reliable Triple Unlock and seamless installation. The Access Control Core stores all cloud configuration locally in order to remain fully functional in the event of an Internet outage. It natively supports up to 16 entries by connecting up to two Avigilon expansion boards via USB, or up to 32 entries by connecting to Mercury MP or LP Series intelligent controllers. This offers maximum flexibility for your security needs, backed by a lifetime warranty for complete peace of mind.