American Dynamics AD2089 - Manual (Page 58)

Glossary
50 AD2089 Operator’s Manual
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fixed camera A camera which views a scene from a single perspective. A fixed camera
cannot pan or tilt, or make automatic lens adjustments.
flip To instantaneously position a dome 180× in the opposite direction of where it is
currently pointing.
focus The process of adjusting the clarity of a scene or an object, as seen through a
camera.
input A device such as a smoke detector or twilight sensor that, when configured to
do so, can trigger an alarm when it undergoes a change in state.
iris The camera component that determines how light enters the camera. By
adjusting the iris, you can adjust the brightness and darkness of the video on
the monitor.
joystick The AD2089 keyboard's three-vector control device that enables the user to
control the movement (pan, tilt, and zoom) of a pan/tilt camera or dome.
keyboard The portion of the AD2089 containing the buttons that enable you to call up an
individual camera, control a camera's iris, display shots, run Monitor Tours, and
arm or disarm monitors.
LED Light emitting diode. The display section of the AD2089 contains 18 seven
segment LEDs which display site, monitor, and camera numbers, as well as
the various status messages described in this manual.
latched relay An auxiliary relay that remains active until it is deactivated using the
appropriate off switch. An example of a latched auxiliary is a light. When the
keyboard controller’s Auxiliary On button is pressed, the light is turned on.
When the Auxiliary Off button is pressed, the light is turned off. See also
auxiliary and momentary relay.
log in If this function is enabled, system keyboard access is restricted to only those
users entering a user number (1-64) and a six digit passcode. When the
function is disabled, system access is restricted only by the priority level set for
the keyboard in use.