Video Processor Description - Cobalt Digital Inc 9934-AUD-PRO-DSP Product Manual

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Video Processor Description

1-8
The 9934-AUD-PRO-DSP video subsystem provides the functions described
below.
Input Video Select/Quality Check Functions
A GUI-based control allows the card to select from up to four 3G/HD/
SD-SDI inputs, and a SD CVBS analog video input. For analog inputs,
waveform-based ancillary data is preserved for extraction and usage later in
the card processing chain.
The input can be selected using DashBoard manual control, set to failover to
an alternate input upon loss of the target input, and can be externally selected
via a GPIO interface. An input
allows inputs to be filtered (screened) for only user-allowed raster sizes and
frame rates, with unallowed raster/rates being rejected as an input (input
unlock). Reclocked copies of any SDI input can be outputted by the card
when selected as a choice on the output crosspoint.
(Option +QC)
frozen frame events to propagate an event alert. This alert can be used by the
card Event Setup/actions function to invoke video routing changes, GPO, and
other actions.
Auto-Changeover Function
(See Figure 1-2.) Available with Rear Modules equipped for relay failover,
this function allows the card logic assert of input select and routing to the
card processed output under normal conditions, while providing
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latching relays at both the input and output nodes to provide input failover to
select an alternate input, and also provides output failover which can
passively relay-route the currently selected input directly to the output if the
card loses power or is removed from the frame. (Both relays are located on
the card rear module.)
The SDI output retains selected routing regardless of whether a
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selection was manually invoked or by a unit-detected failover (such as loss of
power). For example, prior to a power loss event if a changeover from
to was active at the time, this selection is retained by the
SDI IN A SDI IN B
latching relays. In a power-loss event,
output , and the card automatically removed from the signal path
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until normal operation again commences. In normal operation, the output
relay always maintains routing from the card processed output to output
.
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9934-AUD-PRO-DSP PRODUCT MANUAL
9934-AUD-PRO-DSP Functional Description
and
Allowed Rasters
. Quality Check allows criteria such as black/
would be directly routed to
SDI IN B
filter
Allowed Frame Rates
RLY
9934-AUDPRO-OM (V1.5)