Specifications

Alto 818 Installation and Operation
3-6 P/N 66109074001 Rev. D
3.3 HARDWARE LOCATION
The proper location of all Alto 818 system hardware units must be determined prior to development
of a final installation plan.
3.3.1 ALTO 818 CONTROLLER
The system controller should be located so that it is accessible to service personnel in the event
of an emergency or a unit failure. Do not connect the lock controlling the area in which the unit
itself is located unless there is an alternate method of entry.
Ensure that the proposed controller location meets all the following requirements:
 A minimum distance of 6 feet (2 meters) from main AC panels and high inductive loads
(motors, pumps, etc.) unless enclosed in a metal cabinet.
 A minimum 3 feet (1 meter) from telephone cabling equipment or a public address system.
 Ambient environment free from all corrosive fumes and vapors.
3.3.2 ANALOG PROXIMITY READER
Location requirements are the same for the SE 2814/15 and the SE 2854/55* readers. These
readers are suitable for both surface and concealed mounting locations. They can operate
through most building materials with the exceptions of solid metal walls or expanded metal lath.
The SE 2804 compact reader is not an all-weather device and is intended for indoor surface
mount only. This reader should not be mounted near metal walls or expanded metal lath.
When selecting a reader location, keep the following in mind::
 Readers should be a minimum of 6 inches (15.3 cm), as measured from the edge in the same
plane as the reader, from any electrical wiring, electrical conduit, aluminum wall studs, or
metal pipes.
 Readers should be a minimum of 2 inches (5.08 cm) from metal beams, walls or mesh. The
SE 2700 Standoff can be used to mount readers on metal surfaces. Readers must be at least
1 inch (2.54 cm) from metal framed doors, windows or walls.
* The medium range sensors, SE 2854 and 2855 may be used with the SE 818SX only. They are not supported
by the SE 818SC.