Chapter 3 : Operating Mode - Analog way OCTO-PLUS Manuel Utilisateur

Chapter 3 : OPERATING MODE

The OCTO device can be used in two different switching modes.
• The SEAMLESS MODE, allows switching seamlessly, fading* and titling* between the "reference" COMPUTER input
and the others inputs. These ones are scaled to the same format as the "reference" COMPUTER format.
NOTE: The inputs, which can be used as the "reference" Computer input, are the Input # 1 and # 8.
NOTE: The "reference" Computer is not scaled.
• The FAST SWITCHING MODE (ultra smooth) allows selecting an output format corresponding to your application.
All video inputs are scaled to the selected format. The switching between two inputs will go through a fade colored
transition. The output rate can be selected between 60 Hz, 75 Hz or can be synchronized onto one of the video input
frame rate in order to improve the motion picture. In this case, the output frame rate will be 50 Hz if the input is in PAL
or SECAM, and 59.94 Hz if the input is in NTSC.
™
* On OCTO-FADE
3-1. SETTINGS
We recommend resetting the OCTO device to all of its default values, with the LCD menu (CONTROL > default
value > yes) before proceeding.
Select the input type connected to the INPUTS (# 1 to # 8) with the LCD menu (INPUT >input type).
Select the output sync. type which corresponds to your display device with the LCD menu (OUTPUT > output
sync).
Select a switching mode with the LCD menu (SWITCHING > fast switching or seamless). Please see the
Switching mode table below.
If you have selected the fast switching mode: select one of the output formats with the LCD menu (OUTPUT >
output format).
NOTE: For fixed pixels display device (DMD, LCD, PLASMA...), always select the output format corresponding
to the native resolution of your display device. Thus, the display device will not have to scale the image and
the result will be better.
NOTE: In SEAMLESS mode, the output format is the same as the "reference" computer format.
Select the type of screen (4/3 or 16/9) with the LCD menu (OUTPUT > type of screen), according to your wall
mounted projection screen shape.
SWITCHING MODE
TRANSITION All switching with a fade color, a
fade frame** or a clean cut.
OUTPUT FRAME Generated by the OCTO (60 Hz or 75
RATE Hz).
• VGA 60 Hz 4/3.
OUTPUT FORMAT.
• SVGA 60 Hz 4/3.
• XGA 60 Hz 4/3.
• SXGA 60 Hz 4/3.
• SXGA+ 60 Hz 4/3
• D-ILA 75 Hz 4/3.
• D-ILA 75 Hz 16/9.
• HDTV 480p.
• HDTV 720p.
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* On OCTO-FADE & OCTO-FX
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** On OCTO-LOGO & OCTO-FX
PAGE 12
™
& OCTO-FX only.
FAST SWITCHING
internal rate
• VGA 75 Hz 4/3.
• SVGA 75 Hz 4/3
• XGA 75 Hz 4/3.
• SXGA 75 Hz 4/3
™
only.
™
only.
SWITCHING MODE TABLE
"input # x"
All switching with a fade
color, a fade frame** or a
clean cut.
Synchronized on the selected
input frame rate (50 Hz if PAL
or SECAM and 59.94 Hz if
NTSC).
• 640 x 480 L.
• 800 x 600 L.
• 1024 x 768 L.
• 1280 x 1024 L.
• 1400 x 1050 L.
• 1365 x 1024 L.
• 1365 x 768 L.
• HDTV 480p.
• HDTV 720p.
OCTO range
SEAMLESS
• Seamless or fading* transition
between the "reference" computer
and all the inputs.
• All other switching with a fade
color a fade frame** or a clean cut.
Synchronized on the "reference"
Computer frame rate (input # 1 or
input # 8).
Same format as the "reference"
Computer format.