US Utah-400, Setup And Operation, Page: 26 / 157

Introduction
1-8
Introduction
The Utah-400 Routing Matrix
The Utah-400's unique matrix technology allows for a greater flexibility of input and output
combinations available to the user. Each input or output board contains eight signal paths so
the user can expand in groups of eight up to the maximum capacity of the router. These I/O
cards can be HD, SD, or Analog in a video router, and AES or analog in an analog router.
The crosspoint board and its flexible design characterize the Utah-400 system. This board is
available in the 144 x 144 matrix. All crosspoint switching is input coincident, consistent with
previous Utah Scientific technologies.
Chassis demographics require all input board to be installed above the midplane (crosspoint)
in the chassis; all output boards are installed below the midplane in the chassis.
Features of this technology include signal presence indicators on both the input and output
boards. The status of the router input and output states can be continuously monitored via the
debug port (see Appendix B).
Refer to the Utah-400 Matrix Block Diagram for the following signal routing description.
The input signal is received and equalized on the input board. A valid input will illuminate the
Signal Presence Detector LED and also status at the debug port.
From this point the signal is routed to the crosspoint, where the operator has made a "Take",
selecting the routing path of this input to its output.
FIGURE 1-1.
Utah-400 (front view)
Debug Port
18 Input Cards
(either digital or
conversion Input)
Primary Crosspoint
Card
Secondary Crosspoint
18 Output Cards
conversion output)
(either digital or
(optional redundant)