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ISS 408 Integrated Seamless Switcher • Introduction 3
Features
• Inputs —
• Video inputs — The ISS switches among eight fully-configurable RGB, HDTV
component video, component video, S-video, and composite video inputs on five
BNC connectors per input.
• Audio inputs — The ISS switches among eight balanced or unbalanced stereo or
mono audio inputs on 5-pole captive screw connectors.
• Outputs —
• Standard video outputs — The ISS outputs individually scaled video signals as
RGBHV or RGBS. Two sets of BNC connectors and two 15-pin HD connectors are
provided. One set of BNC connectors and one 15-pin HD connector display the
program image, and the other set of BNC connectors and 15-pin HD connector
display the preview image.
• Optional DVI video output — If you install the optional DVI output card, a single
buffered DVI-D signal can be output as an additional program output image.
NOTE: For output resolutions with less than 1024 pixels horizontally, the
optional DVI program output’s true horizontal resolution is limited to 1024
pixels. For the 1365 x 1024, 1080p, and 1080i output resolutions, the
optional DVI program output’s true horizontal resolution is limited to 1280
pixels. The DVI card outputs all other selected resolutions normally (see the
table on page 20).
• Audio outputs — The ISS outputs the selected unamplified, line level, balanced or
unbalanced stereo or mono audio on 5-pole captive screw connectors.
• Accu-RATE Frame Lock (AFL) — This patented technology exclusive to Extron
solves frame rate conversion issues experienced by video scalers. When video input
and output refresh rates differ, occasionally the two rates cross over each other. The
result is a glitch or image freeze on the display. AFL solves this problem by locking
the output frame rate to the frame rate of input 1.
• Dynamic Motion Interpolation™ (DMI™) — This video processing technique
is an advanced motion prediction and compensation method that treats motion
content and still content with different algorithms to yield high fidelity images.
• 3:2 pulldown detection for NTSC and 2:2 film detection for PAL video
sources — These advanced, patent pending, film mode processing features help
maximize image detail and sharpness for video sources that originated from film.
When film is converted to NTSC video, the film frame rate has to be matched to the
video frame rate in a process called 3:2 pulldown. Jaggies and other image artifacts
can result if conventional deinterlacing techniques are used on film-source video.
The ISS’s advanced film mode processing recognizes signals that originated from
film. The ISS then applies video processing algorithms that optimize the conversion
of video that was made with the 3:2 pulldown process. This results in richly detailed
images with sharply defined lines.
A similar process, 2:2 film detection, is used for PAL film-source video.
• Audio follow and breakaway — Audio switching can follow its corresponding video
input signal or it can be broken away from the video input. Audio breakaway switching
can be done via front panel control or under RS-232 or Ethernet remote control.
• Audio gain/attenuation — Users can set the input level of audio gain or attenuation
(-24 dB to +9 dB) via the RS-232 port, Ethernet link, or from the front panel. Individual
input audio levels can be adjusted so there are no noticeable volume differences
between sources.