Studio Technologies 5152 V.2 - Manual (Page 21)

Model 5152 User Guide Issue 4, September 2013
Studio Technologies, Inc. Page 21
Model 5152
Video Generator/Audio Embedder Module
second digit represents what is to happen
to the audio associated with digital audio
inputs 3 and 4. The digit
N indicates that
the digital audio inputs are not to be
embedded. The numbers
1, 2, 3, and 4
represent the SDI group that the digital
audio inputs are to be embedded into.
Figure 9 shows
EMBED=34 which indi-
cates that digital audio inputs 1 and 2 are
to be embedded into SDI group 3 and
digital audio inputs 3 and 4 are to be em-
bedded into SDI group 4. Another example
would be EMBED=2N which would specify
that digital audio inputs 1 and 2 are to be
embedded into SDI group 2 while digital
audio inputs 3 and 4 are not to be embed-
ded (inactive).
A special configuration selection is
EMBED=NN. This configures the Model
5152 to not embed any audio signals. In
this situation any embedded audio as-
sociated with the connected SDI input will
pass through the module. While this con-
figuration will typically not be used it can
prove to be useful in certain situations. For
example, it can be used during trouble-
shooting, disabling the Model 5152’s em-
bedding function and allowing an SDI input
to pass through the module completely
unchanged. Test signals can be confirmed
as passing through the module correctly
and terminating on a downstream piece of
equipment. Turning off embedding can also
be useful when, in a special application, all
the audio groups associated with an SDI
input need to remain embedded and pass
through to the Model 5152’s SDI output.
GPI= selects the status of the GPI (gen-
eral-purpose input) function.
DISABLED
selects that the function is not active.
EMBEDOFF selects that the GPI can be
used to control the on/off status of the
Model 5152’s embedder function. The
function is active low. When the GPI is not
pulled low (switch or contact closure open
(not shorted)) the embedder function is ac-
tive. When the GPI is low (switch or contact
closure closed (shorted)) the embedder
function is disabled. (Of course, if embed-
ding has been disabled in the configuration
(EMBED=NN), the GPI function would not
impact embedder operation.) Note that if
the hardware version of this specific Model
5152 does not support the GPI function
this text line can be part of the file but will
not be recognized.
GPO= selects the status of the GPO
(general-purpose output) function.
DISABLED selects the function to be not
active. SDIVALID selects the GPO output
to be high when a valid SDI signal is con-
nected to the selected SDI input (coaxial
(BNC) or optical). SDINOTVALID selects
the GPO output to be high when a valid
SDI signal is not connected to the selected
SDI input (coaxial (BNC) or optical); the
GPO output will be low when a valid SDI
signal is connected. Note that if the hard-
ware version of this specific Model 5152
does not support the GPO function this
text line can be part of the file but will
not be recognized.
Operation
Power Up
Upon 12 volt DC power being applied to
the Model 5152 the twelve front-panel
LEDs will perform a “walk-through” test,
with each LED lighting briefly in sequence.
Then the LEDs will light in patterns that
represent the version numbers of the
firmware (embedded software) files that