Sierra Video View Multi-Viewer MV-XX - Manual (Page 24)

SIERRA VIDEO
18
Mixed DVI and composite/SDI configurations
Taking into account the requirements for double width rear connector modules and the
reduction in capacity they incur, there are other types of rear connector that can
sometimes be used to avoid this compromise. When video input loop throughs are not
needed, but a number of both DVI-I and composite/SDI inputs are required, the RM-SV40
rear connector module can be specified. The RM-SV40 is single width and has two
composite/SDI inputs, plus 2 x DVI-I inputs. This means that the maximum capacity of 64
video inputs in a single type frame, or 32 video inputs per multi-viewer in the dual type
frame can be utilised. In the example described, there would be 32 composite/SDI inputs
and 32 DVI-I inputs using the single frame, or 16 composite/SDI inputs and 16 DVI-I
inputs per multi-viewer using the dual frame, assuming double rear modules are not
required for other inputs.
Using the RM-SV40 type rear module also overcomes an input limitation of the RM-SV42
that affects the number of analog (VGA type) sources that can be used. See RM-SV42
Limitation below.
RM-SV42 rear module limitation
Each video input card has a maximum number of 10 conductors that accept video signals
from the rear connector module. This means the RM-SV42 rear module cannot support
analog (VGA Type) sources on all four DVI ports. Two ports have full DVI-I capability,
accepting both digital and analog sources. The other two ports are DVI-D (digital) only.
So it may be more appropriate to use the RM-SV40 which has two DVI-I ports accepting
both analog and digital sources, plus two composite/SDI inputs. This is likely to be
applicable to applications were a large number of both analog (VGA style) DVI inputs and
composite/SDI inputs are required. However, please note that the RM-SV40 does not
have a GPI connector and therefore cannot provide tally inputs.
RM-SV10 RGB/YUV rear module limitation
Each video input card has a maximum number of 10 conductors that accept video signals
from the rear connector module. While this is not a problem with single wire formats such
as composite or SDI, it presents a limitation with multi-wire formats such as YUV and
RGB. Therefore, the maximum number of RGB/YUV type sources that can be
accommodated by the RM-SV10 is three, leaving one BNC available for a composite or
SDI source. Some examples of source combinations that can be served by the RM-SV10
are shown below.
3 x YUV/RGB Plus 1 x Composite or SDI
2 x YUV/RGB Plus 2 x Composite and/or SDI
2 x YUV/RGB Plus 2 x Y/C (S-Video)
1 x YUV/RGB Plus 3 x Composite and/or SDI
4 x Y/C(S-Video)
3 x Y/C(S-Video) Plus 1 x Composite or SDI
2 x Y/C(S-Video) Plus 2 x Composite and/or SDI
1 x YUV/RGB plus 1 x YC (S-Video) plus 2 x Composite and/or SDI