16 Pelco Manual C1490M (10/98)
4.3 ZOOM
The Spectra
®
(Version 3.0) dome can magnify an object up to 96 times—12X opti-
cal zoom and 8X electronic (digital) zoom. Zoom can be set for 12X, 24X, 48X, or
96X. Software controls the amount of zoom.
12X or 24X Zoom
Press the Zoom Tele button to magnify an object up to 12 or 24 times. Hold down
the button until you get the desired picture.
48X or 96X Zoom
1. Press the Zoom Tele button until the picture reaches 24X zoom, then release
the button.
2. Within one second, hold down the button again until you get the desired picture.
4.4 PRESET FUNCTIONS
The Spectra
®
(Version 3.0) dome can go to 64 preset locations, each with a 20-
character label. Presets are numbered 1-32 and 35-66. Refer to your control sys-
tem documentation for programming presets.
When doing a preset operation, the amount of error in moving to the pan and tilt
positions is 1/2 degree. You may get erratic operation if you command the dome to
go to an undefined preset.
Presets 33 and 34 are fixed commands (you cannot program them). Preset 33 is
the “flip” command, which pans the dome drive 180 degrees from its current posi-
tion. Preset 34 is the “pan zero” command, which directs the dome drive to the
factory-determined zero reference point. The following presets are reserved for
special functions:
Preset Function
1 Park (Section 4.11.22)
1-7 Alarms, if used (Section 4.8)
33 Flip command (Section 4.4)
34 Pan zero command (Section 4.4)
90-93 Limit stops (Sections 4.5 and 4.11.21)
95 Select camera programming menu (Section 4.11.1)
96 Stop a scan (Section 4.5)
97-99 Activate scanning (Section 4.5)
4.5 RANDOM, FRAME, AND AUTO SCANNING
Program preset 97 (30) to start random scanning. Program preset 98 (31) to acti-
vate frame scanning (three seconds of scanning followed by a three-second pause).
Program preset 99 (32) to start auto (continuous) scanning.
Software controls scan limit stops. When the dome reaches one, it immediately
reverses direction. Refer to Section 4.11.21, LIMIT STOPS, to program the scan
limit stops. Program preset 96 (29) to stop a scan. Any pan and tilt or lens com-
mand also stops a scan.
4.6 ZONES
The Spectra
®
(Version 3.0) dome is capable of eight zones, each with a 20-charac-
ter label. Depending on the controller, you can define the zone size and define any
zone as “blanked” for video when the camera pans into the zone area. (Zone sizing
and blanking work with the CM8500, CM9500, and MPT9500; but do not work with
the CM6700 and System 9760™.) If zone labels are turned off, the system displays
VIDEO BLANK to indicate the video is being blanked and is not failing. (Refer to
Section 4.11.18, ZONE BLANK, for instructions.) For other information on program-
ming zones, refer to the documentation for your control system.
NOTE:
On some controllers the
zoom speed can be changed. Re-
fer to the documentation for your
controller.
NOTE:
If you are using the dome’s
alarm inputs, presets 1-7 must be
reserved for alarm operations. Re-
fer to Section 4.8, ALARMS.
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
94 becomes 27
93 becomes 26
92 becomes 25
91 becomes 24
90 becomes 23
If the limit stops are turned off, pre-
sets 23-26 can be used as regular
presets.
NOTE:
In the following material,
sometimes a number in parenthe-
ses follows a preset. This second
number is for 32-preset mode.
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