Specifications

Alto 818 Installation and Operation
2-4 P/N 66109074001 Rev. D
2.1 ALTO 818 ACCESS CONTROL UNIT
The Alto 818 is shown in Figure 2-2. Basic functions of the Alto 818 ACU are as follows:
 Receives identity data from readers and keypads used at controlled doors, compares this
identity to a list of authorized key holders, and makes decisions to unlock doors.
 Monitors the open or closed state of controlled doors.
 Monitors the state of motion or sound detectors and window contacts and actuates control
devices.
 Actuates control devices such as an audible alarm or video camera based on monitor inputs.
 Controls the building modes.
 Reports activity in the controlled area to a terminal and or host.
 Initiates modem contact with a remote host.
Figure 2-2: Alto 818 Access Control Unit
The Alto 818 measures 18 inches (46 cm) by 10.5 inches (27 cm) by 2.25 inches (6 cm) and
weighs 5.5 pounds (2.5 kg).