Studio Technologies 5152 V.2 - Manual (Page 22)

Issue 4, September 2013 Model 5152 User Guide
Page 22 Studio Technologies, Inc.
Model 5152
Video Generator/Audio Embedder Module
are loaded into the module. Upon comple-
tion, the Power LED will light continuously.
For normal operation to commence, prior
to powering up the module ensure that
a USB flash drive is not plugged into the
USB port on the front panel.
LED Indicators
A brief discussion of the Model 5152’s sta-
tus LEDs will be covered in this section.
Front-Panel LEDs
As previously discussed, upon power up
the twelve front-panel LEDs will light in a
short sequence as an initialization test.
Afterwards they are used to display the
version number of the installed MCU and
FPGA firmware. Refer to the Technical
Notes section of this guide for details. Fol-
lowing the power-up sequence, the Power
LED will light and remain lit.
The USB Activity LED will not light during
normal Model 5152 operation. It will be lit
continuously or in a pattern when a USB
flash drive is plugged into the USB port
on the front panel and file transfer activ-
ity is taking place. Details on how the LED
functions when the USB port is active are
covered in the Technical Notes section of
this guide.
The SDI Input LED lights whenever a valid
SDI signal is connected to the coaxial
(BNC) or optical SDI input. (A configuration
choice selects whether the coaxial (BNC)
SDI input or optical SDI input is active.)
The Data LED will light whenever data ac-
tivity is taking place over the local RS-485
signal bus that is used to link the Model
5152 to a Studio Technologies’ Model 5190
Remote Access Module. The LED will flash
on and off each time data associated with
this specific Model 5152 is present. Not all
applications will include a connection to
the data bus so it’s certainly possible that
the Data LED may never flash except dur-
ing module power up.
The eight LEDs associated with the digital
audio inputs will light whenever signal is
present on their associated audio channels
and embedding of these signals into the
SDI signal is taking place. Details regard-
ing the functioning of these LEDs are
included later on in this section.
FPGA Board LEDs
Three LEDs are located on the back edge
of the FPGA printed circuit board and
serve as factory- and field-diagnostic aids.
Upon Model 5152 power up each LED will
light for several brief durations with no spe-
cific meaning associated with them. Then
the FPGA Status LED, located adjacent
to the DIP switches, will light and remain
lit. This indicates that the FPGA and MCU
boards are correctly communicating.
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 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 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