Studio Technologies 5154 - Manual (Page 14)

Issue 3, September 2013 Model 5154 User Guide
Page 14 Studio Technologies, Inc.
Model 5154
Video Generator/Audio De-Embedder Module
An initial overview of the configuration
choices is provided in the following para-
graphs. Following these paragraphs are
details on how to determine a module’s
current configuration and how to revise
parameters as required.
SDI Input Select
The Model 5154 is capable of having its
SDI input in the form of a coaxial signal
(BNC connector) or an optical signal (SFP
module). All versions of the Model 5154
support the coaxial (BNC) input. The opti-
cal input is an option and may or may not
be present on the specific module you are
configuring. Configuring this function can
be performed using the Model 5190
Remote Access Module or by way of a
text file stored on a USB flash drive.
SDI Output Image Format/Rate Mode
One setting is used to select how the
format and rate of the internal SDI genera-
tor is selected. (The internal SDI generator
creates the short-duration solid-gray video
image and plays back the stored “720”
and “1080” images.) In the Auto mode the
format and rate will automatically “follow”
that of a connected SDI input. This allows
the Model 5154 to automatically “learn” the
specific format and rate used by a broad-
cast facility or live event. In the Locked
mode the format and rate of the internal
SDI generator will be “locked” so that it will
not change. Configuring this mode can be
performed using the Model 5190 Remote
Access Module or by way of a text file
stored on a USB flash drive.
Delay Before Stored Image
The Model 5154 can output a solid-gray
video image prior to the stored image
being generated. This is provided as an
innocuous indication to downstream equip-
ment that a loss of SDI has occurred. The
solid-gray image can be selected to be
present for a fixed duration of one to seven
seconds. It can also be disabled allowing
the stored image to be output as soon as
a loss of an input SDI signal is detected.
Moving Image Overlay
A “moving” graphic image can be overlaid
onto the stored “720” and “1080” images
when either one is being output by the
Model 5154. The image is a red-colored
box that slowly moves around the screen.
This simple icon provides an indication
to personnel located downstream of the
Model 5154 that the SDI signal is active.
This can be important to ensure that a
distinction can be made between an active
image and an image that’s the result of the
last valid frame being held and displayed
by a piece of equipment even though its
SDI input is no longer present.
When the function is off the stored images
(“720” and “1080”) will be displayed with-
out the moving image being added. When
the function is on the moving image will be
added. Configuring this mode can be per-
formed using the Model 5190 Remote
Access Module or by way of a text file
stored on a USB flash drive.
SDI Input as Timing Reference
In most applications it’s desired that a
signal connected to the selected SDI input
will automatically be routed to the SDI
output(s). But in special cases the Model
5154 may be used as a full-time video
generator. In this latter case the ability
to connect an external timing reference
would be desirable. This would allow the
SDI output(s) to be “locked” to a master or