Grass Valley NV8500 Series v.3.5 - Manual (Page 113)

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Expanded NV8576-Plus
Two NV8576-Plus frames are interconnected to form an expanded NV8576-Plus router. Whereas
an NV8576 router has a 576×1152 crosspoint matrix, the expanded NV8576-Plus has an
1152×1152 crosspoint matrix.
A single NV8576-Plus frame can be used as a stand-alone NV8576-Plus router.
Topics
Overview of the NV8576-Plus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Signal Flow and Signal Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Expansion I/O Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Connecting the NV8576-Plus Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Overview of the NV8576-Plus
The two frames of the NV8576-Plus are called frame 1 and frame 2, or alternatively the primary
and secondary (or master and slave) frames. It is the primary frame that connects to and
communicates with the router control system. The secondary frame connects to, and communi-
cates with, the primary frame.
It is in MRC that you designate a router as primary or secondary. See the Miranda Router Configu-
rator User’s Guide.
The NV8576-Plus router uses “expansion” cabling to interconnect its two frames.
Expansion cabling includes the following:
• 28-pin “TDP” cables for video and audio signals. (They have flat D-shaped connectors that
are nickel-plated on one side and black on the other side.)
These are 4 meter cables that connect “expansion” output cards of one frame to expansion
output cards of the other frame.
• RJ-45 or BNC cross-connect cables for communication between the frames.
An NV8576-Plus router with EM0666 control cards (i.e., standard router) the cross-connec-
tion uses RJ-45 cables with terminators.
An NV8576-Plus router with EM0833 control cards (i.e., hybrid router) the cross-connection
uses BNC cables without terminators.
• Monitor feeds.
If the router uses monitor cards, monitor cards in the primary frame relay monitor informa-
tion from the secondary frame to external monitoring equipment. Coax (DIN 1.0/2.3) cabling
is required for the monitor connections.
Power and alarm connections apply to each individual frame. For more information, see Power
on page 119.