Studio Technologies 5152 V.2 - Manual (Page 23)

Model 5152 User Guide Issue 4, September 2013
Studio Technologies, Inc. Page 23
Model 5152
Video Generator/Audio Embedder Module
(FPGA) has loaded its firmware and is op-
erating normally. This LED is provided only
for factory troubleshooting use.
Initial SDI Output
After the power-up sequence has been
completed the module’s SDI output will
become active. (This will be both the coax-
ial (BNC) output and, if present, the optical
SDI output.) If a valid signal is connected
to the selected SDI input it will be routed to
the SDI output. If a signal is not connected
to the selected SDI input the internal SDI
generator will supply a signal to the SDI
output. In the latter case, after the Model
5152 power-up sequence has taken place
(about seven seconds) a solid-gray im-
age will be output for approximately seven
seconds. Then either the custom “720” or
“1080” image will be displayed.
SDI Input and SDI Output
Depending on the exact Model 5152 ver-
sion that has been installed and how it was
configured an SDI signal can be connected
to the coaxial (BNC) input or the optical
input. When a signal that’s compatible with
the Model 5152 has been connected the
front-panel SDI Input LED will light. This
indicates that the signal is being routed to
the SDI output and the internal SDI gen-
erator is not active. SDI signals that comply
with most HD (1.485 Gb/s nominal) and
3G (2.97 Gb/s nominal) standards are
compatible. Refer to the Specifications
section of this guide for a list of the sup-
ported standards.
The Model 5152 always provides an active
SDI signal on the coaxial (BNC) output.
Some Model 5152 versions also provide
an optical output. This is accomplished at
the factory by installing one of a variety of
available SFP optical modules in the back-
panel SFP “cage.” If an optical output is
present it will always be active and provide
an identical copy to the signal present on
the coaxial (BNC) output.
If a valid SDI signal is not connected to the
selected SDI input the custom image will
be present on the coaxial (BNC) output
and, if present, optical output. Depending
on the stored format and rate values, the
output will be either a 1280 x 720 pixel
(“720”) or 1920 x 1080 pixel (“1080”) fixed
image.
Stored Images
When a valid signal is not connected to the
selected SDI input, the module generates
one of two fixed images. The two images,
one “720” and one “1080,” are stored
in nonvolatile memory within the Model
5152. From the factory two images are
pre-loaded. The two are quite different
from one another with each having a
unique photo background and overlaid text.
The overlaid text provides support details
on how alternate custom images can be
created.
It’s expected that these pre-loaded images
will be replaced with application-specific
images. They can be easily created and
what they consist of is limited only by one’s
imagination. Refer to the Technical Notes
section of this guide for details.
Transitions between External
and Internal SDI Signals
This paragraph applies when the Model
5152 has been configured for normal SDI
input mode. Whenever a valid SDI signal
is connected to the selected Model 5152
input it will immediately be routed to the