Sierra Video View Multi-Viewer MV-XX User Manual
Page 22
SIERRA VIDEO
16
The example above illustrates what happens if, for example, a double width rear
connector is use for the card in slot one, but no video loop card is installed in slot two.
The next video card is in slot three, but due to the break in the signal path at slot 2, it
receives no video from the card in slot one. This configuration is incorrect and will not
work.
The example above illustrates how the video loop card allows the video path to remain
unbroken when using a dual width rear connector in slot 1.
Even if the last card in the chain has a double width rear, a video loop card is still
required. Another vital function of the video loop card is to pass the signals from the
additional connectors on the dual width rear module back to the card with which it is
associated.
The double width rear modules have two PCBs that connect to the mid-plane within the
SV.
Video
I/P
Card 1
in Slot 1
Slot 2
Empty
Video path carrying
scaled images from
video I/P input card 1
Video
I/P
Card 2
in Slot 3
This video path
carries nothing since
slot 2 is empty
Video
I/P
Card 1
in Slot 1
Video
Loop
Card in
Slot 2
Video path carrying
scaled images from
video I/P input card 1
Video
I/P
Card 2
in Slot 3
Video path carrying
scaled images from
video I/P card 1