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Pelco Manual C1487M-D (7/99) 25
ZOOM
SPECTRA II™ ZOOM
The Spectra II™ dome can magnify an object up to 128 times. The dome has 16X of optical
zoom and 8X of electronic (digital) zoom for 128X total zoom. The amount of zoom can be
set for 16X, 32X, 64X, or 128X. Software controls the amount of zoom. Refer to the
Zoom
Limit
section to program the zoom limits.
16X or 32X Zoom
Press the Zoom Tele button or turn the joystick clockwise to magnify an object up to 16 or
32 times. Hold the button or joystick until you have the picture you want.
64X or 128X Zoom
1. Press the Zoom Tele button or turn the joystick clockwise until the picture reaches 32X
zoom.
2. Release the button or joystick.
3. Within one second, press the button or turn the joystick clockwise again until you have
the picture you want.
Zoom Wide
Press the Zoom Wide button or turn the joystick counterclockwise to increase the field of view.
SPECTRA LITE™ ZOOM
The Spectra Lite™ dome can magnify an object up to 16 times (the dome has 16X of
optical zoom).
Zoom Telephoto - Press and hold down the Zoom Tele button or turn the joystick
clockwise until you have the picture you want.
Zoom Wide - Press the Zoom Wide button or turn the joystick counterclockwise to
increase the field of view.
PRESET FUNCTIONS
The Spectra II™ dome is capable of going to 64 preset locations, each with a 20-character
label. The presets are numbered 1-32 and 35-66. The Spectra Lite™ dome can go to 32
presets. The presets are numbered 1-32.
Refer to the documentation for your control system for programming presets.
When a preset operation is performed, the amount of error in moving to the pan and tilt
position is 1/2 degree. If you command the dome to go to an undefined preset, erratic
operation may result.
Presets 33 and 34 are fixed commands, meaning that you cannot program them. Preset 33
is the “flip” command, which will pan the dome drive 180 degrees from the position it is at.
Preset 34 is the “pan zero” command, which will direct the dome drive to the factory-
determined zero reference point.
The following presets are reserved for special functions. (An asterisk denotes
presets that apply to Spectra II only.)
Preset Function
1 Park
1-7* Alarms, if used
33 Flip command
34 Pan zero command
90-93 Limit stops
95 Select camera programming menu
96 Stop a scan
97-99 Activate scanning
In the following sections, sometimes a number in parentheses follows a preset. This second
number is for 32-preset mode (conversion that lets Pelco’s presets work with American
Dynamics controllers). If you are using an American Dynamics controller, use the number in
parentheses.
NOTE:
(Spectra II™
Only)
On some controllers
the zoom speed can be
changed. Refer to the docu-
mentation for your controller.
NOTE:
For American
Dynamics controllers with
only 32 presets, set switch
SW1-7 on the dome drive in
the ON position. When
SW1-7 is ON, preset
99 becomes 32
98 becomes 31
97 becomes 30
96 becomes 29
95 becomes 28
93 becomes 26
92 becomes 25
91 becomes 24
90 becomes 23
If the limit stops are turned
off (refer to the
Limit Stops
section), presets 23-26 can
be used as regular presets.