General Access Control Information Last updated Save as PDF Data sheets Installation guides User guides Access Control controllers and expansion modulesAccess Control System DesignerDual-Access Mode How-to troubleshooting guides Frequently asked questions Are the relays on Mercury Series boards wet or dry?Can an Access Control door controller be used as an expansion module?Can Mercury or HID Aero relays (outputs) be used with AC circuits?How can a Fire Alarm system be connected to the Access Control Power Supply Kit?What is a centralized design for an Access Control system?What is an Edge Design for an Access Control system?What is the difference between the ADC-ACC1-17 and ADC-AC-LP1501 Access Control door controllers?Which wire gauge should be used with an Access Control door controller?