Studio Technologies 5150 V.3 - Manual (Page 14)

Issue 1, June 2013 Model 5150 User Guide
Page 14 Studio Technologies, Inc.
Model 5150
Video Generator Module
The LED located adjacent to the coaxial
SDI input’s BNC connector will light when-
ever that input has been configured to be
active and a valid SDI signal is connected.
It will not light if a valid SDI signal is con-
nected but the SDI input configuration
switch is not set to activate the coaxial
(BNC) input.
The LED located adjacent to the “cage”
that holds the SFP module will light if the
optical SDI input has been selected and a
valid SDI optical signal is connected. It will
not light if a valid optical signal is connect-
ed but the SDI input configuration switch
is not set to activate the optical input.
A fourth LED is located near the front of
the FPGA board. Called the FPGA Done
LED, it lights whenever the logic device
(FPGA) has loaded its firmware and is
operating 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 be-
come active. (This will be both the coaxial
(BNC) output and, if present, the optical
SDI output.) If a valid signal is connected
to the SDI input it will be routed to the SDI
output. If a signal is not connected to the
SDI input the internal SDI generator will
supply a signal to the SDI output. In the
latter case, after the Model 5150 power-up
sequence has taken place (about seven
seconds) a solid-gray image 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 5150 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 5150 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
generator 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 5150 always provides an active
SDI signal on the coaxial (BNC) output.
Some Model 5150 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 gen-
erates one of two fixed images. The two
images, one “720” and one “1080,” are
stored in nonvolatile memory within the
Model 5150. From the factory two images
are pre-loaded. The two are quite differ-
ent from one another with each having a
unique photo background and overlaid text.