Studio Technologies 5152 V.1 - Manual (Page 16)

Issue 5, September 2013 Model 5152 User Guide
Page 16 Studio Technologies, Inc.
Model 5152
Video Generator/Audio Embedder Module
Model 5152. 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 5152 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
5152 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
“house” timing signal. An operating mode
selection allows an HD- or 3G-SDI signal
to serve as a timing reference.
When the SDI Mode is set for Normal
a signal connected to the Model 5152’s
selected SDI input will pass through to the
SDI output(s). When SDI Mode is set for
RefOnly the timing, rate, and format of the
input SDI signal will impact the internally-
generated video image output. The video
information associated with the input signal
will not be routed to the SDI output(s).
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.
Audio Embedding
One of the strengths of the Model 5152 is
its ability to select which of the four digital
audio inputs will be active and where their
signals will be embedded into the SDI
output “stream.” Nine choices allow a wide
range of embedding choices.
Four of the embedding choices are pro-
vided for applications that need to use just
two of the Model 5152’s four digital audio
inputs. Digital audio inputs 1 and 2 (which
are associated with four channels of audio)
can be embedded into SDI groups 1, 2,
3, or 4. When one of these four choices is
selected digital audio inputs 3 and 4 are
not used and are effectively disabled.
Another four choices allow all four of the
Model 5152’s digital audio inputs (eight
audio channels) to be embedded. The
choices allow digital audio inputs 1 and
2 to be embedded into groups 1, 2, or 3
while digital audio inputs 3 and 4 are
embedded into groups 2, 3, or 4.
A final choice allows the embedding pro-
cess to be completely disabled. This is
provided primarily for use during trouble-
shooting but may also find value when
supporting special applications. When
embedding by the Model 5152 is disabled
any embedded audio groups that are pres-
ent on the connected SDI input will pass
unaltered through the module.
GPI – General-Purpose Input
Depending on the hardware version of the
specific Model 5152 module there may be
a GPI function available. The GPI (general-