Studio Technologies 5150 V.2 - Manual (Page 19)

Model 5150 User Guide Issue 3, September 2013
Studio Technologies, Inc. Page 19
Model 5150
Video Generator Module
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
5150 to a Studio Technologies’ Model 5190
Remote Access Module. The LED will flash
on and off each time data associated with
this specific Model 5150 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 during
module power up.
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 5150 power up each LED will light
for several brief durations with no specific
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 opti-
cal SDI input has been selected and a valid
SDI optical signal is connected. It will not
light if a valid optical signal is connected
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
(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
become active. (This will be both the coax-
ial (BNC) output and, if present, the optical
SDI output.) If a valid signal is connected
to the selected SDI input it will be routed to
the SDI output. If a signal is not connected
to the selected 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 im-
age 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.