GRASS VALLEY TRINIX NXT -, Installation Manual

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Trinix NXT — Installation and Service Manual 35
The VI-33100 “universal” input board uses inputs 0 - 15 are analog, SD, or
HD. Inputs 16 - 31 are SD or HD. The board auto-senses and accepts 16
composite analog SD, digital SD, or digital HD signals in any combination
and passes them in digital SD or digital HD form (as appropriate) to the
Trinix matrix board. When analog signals are received, an extensive set of
gain, phase, filtering, and other adjustments are available for each signal.
For a list of these adjustments, see the
Analog Processing Control section on
page 66 .
The BL-33000 Broadlinx option combines network interface, sync input,
and output monitor circuitry. Each board has two sync inputs and two
monitor outputs. Two boards can be installed which will provide four ports
for each. The sync reference supports generation of Vertical Interval Switch
Timing strobe from standard NTSC or PAL Black Burst or HDTV Tri-level
sync defined in the SMPTE 274M-1998 standard (see the
Glossary ). Sync
reference granularity is 32 outputs. An internal DIP switch is used to select
one of the available references for the respective 32-output blocks. Trinix
can also operate without a sync reference.
The Trinix fixed-frame routers all come standard as pre-wired single-
output units. The dual output option is implemented by adding physical
expanders in increments of 16 up to 256. Both outputs are non-inverting
and fully meet DVB-ASI (see
Glossary ) specifications.
Serviceability and Reliability
Trinix routing switchers are engineered by the same team that developed
the Venus and Venus2001 family of routing switchers and use many of the
same proven circuit designs that made the Venus line the best selling
routers in the world. In addition, Trinix employs cutting-edge technology
to reduce the number of components, increase the reliability of individual
parts, enhance air movement throughout the frame,
a
nd identify potential
system problems in time to take preventive measures.
Trinix also offers Broadlinx technology, which aids serviceability by pro-
viding status displays and monitoring functions through a network con-
nection.
All circuit boards contain some common circuitry for hot swapping, cir-
cuitry for DC-to-DC conversion, and a micro-controller as part of the
Broadlinx technology. Hot swap circuitry is used to simplify field servicing
and upgrades.
The DC-to-DC conversion is necessary because the frame design distrib-
utes one voltage, 48 volts, to all boards. This design requires each board to
convert the voltage level as needed.
Each board has a micro-controller that is part of an overall communications
bus, which is part of the hardware for the Broadlinx technology. This hard-
ware is what gathers all of the particular board information (voltages,