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Introduction
Video Processor Description
BBG1022FS-OM (V1.4)
The BBG-1022-FS video subsystem provides the functions described below.
Input Video Select/Quality Check Functions
A GUI-based control allows selection 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 processing
chain.
The input can be selected using user 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 when selected as
a choice on the output crosspoint.
frozen frame events to propagate an event alert. This alert can be used by the
Presets function to invoke video routing changes, GPO, and other actions.
Auto-Changeover Function
(See Figure 1-2.) This function allows the device logic assert of input select
and routing to the
providing 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 device loses power or is removed from the frame. (Both relays are located
on the device rear panel subassemby.)
The
SDI output retains selected routing regardless of whether a
RLY BYP
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 latching
A
SDI IN B
relays. In a power-loss event,
, and the device automatically removed from the signal path until
RLY BYP B
normal operation again commences. In normal operation, the output relay
always maintains routing from the device processed output to output
.
RLY BYP B
Note:
• The device also provides active (DA-driven) outputs
. These outputs are independent of the relay failover function
RCK/PROC 4
and will lose signal in the event of a power loss.
• The above failover uses basic signal presence as failover criteria and is
limited to inputs A and B. Failover using active assessments (Quality
Check) can be set to provide failovers using frozen/black frame and other
criteria. See Video Quality Events Detect Function (p. 1-11) for more
information.
BBG-1022-FS PRODUCT MANUAL
BBG-1022-FS Functional Description
Allowed Rasters
. Quality Check allows criteria such as black/
(Option +QC)
processed output under normal conditions, while
RLY BYP
would be directly routed to output
SDI IN B
and
Allowed Frame Rates
thru
RCK/PROC 1
filter
SDI IN
1-7
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Troubleshooting
