US Utah-400, Setup And Operation, Page: 27 / 157

144x144 Router
1-9
Routing Switcher Basics
The output from the crosspoint is directed to its proper path on the output bus and the appro-
priate output board slot. When the output board detects a valid output signal, it will illuminate
the appropriate Signal Presence LED. From this point the output signal is sent to its output
driver and its BNC.
FIGURE 1-2.
The Utah-400 Matrix Block Diagram
Input Card - 8 circuits per board
Receiver /
Reclocker
Signal
Presence
Detector
Input Signal
To Input
Expansion Bus
144 x 144
Crosspoint
Crosspoint Board
Inputs from
Expansion Chassis
Signal
Presence
Detector
Output
Driver
Output
Signal
Output Card -
8 circuits per
board
000-143
Output Bus
Distribution
Amplifier
Equalizer
Reclocker/
Output Driver