AC-B31 is part of Rosslare’s indoor standalone controller series, ideal for residential and commercial access applications. It is an industry favorite for those looking for a basic access controller that simply gets the job done.

The AC-B31 is easy to program and easy to use. This 500-user, PIN, standalone controller is packed with features such as multiple user levels and operation modes, Programmable Siren and Lock Strike Release Times, code search, and back & case tamper protection yet is still considered a fairly “basic” model.

• Advanced 500-user standalone controller
• Two tri-colored LEDs and internal buzzer indicators
• Lock strike and auxiliary relay outputs
• Input for Request to Exit (REX) button
• Internal case and wall tamper detection
• Supplied with an installation kit including a security screw, security screw tool, mounting screws and a mounting template
• Internal suppression diode (1N4004)

PROFESSIONAL GRADE FEATURES

• Three user levels: Normal, Secure, Master
• Three operational modes: Normal, Bypass, Secure
• Programmable Siren Time
• Programmable Lock Strike Release Time
• Bell, chime, siren and strobe when used with the BL-D40