BBG1002UDX-OM (V1.5)
BBG-1002-UDX PRODUCT MANUAL
1-7
Introduction
BBG-1002-UDX Functional Description
Video Processor Description
The BBG-1002-UDX features a up/down/cross-convert scaler, frame sync,
and user-adjustable aspect ratio control and zoom control. The
BBG-1002-UDX video subsystem also provides the functions described
below.
Input Video Select/Quality Check Functions
A GUI-based control allows each of the device video inputs to be
independently set as 3G/HD/SD-SDI or CVBS SD analog video. Either mode
preserves waveform and/or packet-based ancillary data for extraction and
usage later in the 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
Allowed Rasters
and
Allowed Frame Rates
filter
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.
(Option
+QC)
. Quality Check allows subjective criteria such
as black/frozen frame events to propagate an event alert. This alert can be
used by the device Presets function to invoke video routing changes, GPO,
and other actions.
Auto-Changeover Function
(See Figure 1-2.) This function allows the logic assert of input select and
routing to the
RLY BYP B
processed output under normal conditions, while
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 unit loses power.
The
RLY BYP B
SDI output retains selected routing regardless of whether a
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
SDI IN A
to
SDI IN B
was active at the time, this selection is retained by the
latching relays. In a power-loss event,
SDI IN B
would be directly routed to
output
RLY BYP B
, and the unit automatically removed from the signal path
until normal operation again commences. In normal operation, the output
relay always maintains routing from the processed output to output
RLY BYP B
.
