Studio Technologies 5154 - Manual (Page 10)

Issue 3, September 2013 Model 5154 User Guide
Page 10 Studio Technologies, Inc.
Model 5154
Video Generator/Audio De-Embedder Module
Optical SDI Output
This section applies only when the specific
Model 5154 module being installed was
configured at the factory to provide an opti-
cal output. A video SFP (small form-factor
pluggable) optical module is used to pro-
vide the optical SDI output. A range of SFP
modules can be installed in the “cage” at
the back of the Model 5154. These include
transceiver modules that have both an
optical output (transmitter) and an opti-
cal input (receiver), as well as output-only
(transmitter) modules. The technical char-
acteristics of the optical output will depend
on the specific module installed. The most
common transceiver or output-only SFP
module used in the Model 5154 will have
an FP (Fabry-Perot) laser emitting “light” at
a wavelength of 1310 nanometers. Other
modules can utilize a higher-performance
DFB (distributed feedback) laser that is
manufactured to produce light at one of
the 18 CWDM wavelengths. (For broad-
cast applications, the common first-utilized
CWDM wavelengths are often 1490 and
1550 nanometers.)
An LC plug terminated on a single-mode
optical fiber is used to mate with the SFP’s
optical output. When referenced to the
front of an SFP transceiver or output-only
SFP module the optical output is located
on the SFP module’s left side. To indicate
the optical output port a graphic arrow icon
pointing “out” may be present on the top of
the module. Refer to Figure 2 for a detailed
view. When terminating the LC plug with
the socket on the SFP module be certain
that the plastic plug’s locking tab is fully
engaged into the slot of the SFP module.
This will help prevent the LC plug from
becoming disconnected due to physical
stress or vibration on the fiber. Also ensure
that the end (“face”) of the plug’s ferrule
has been cleaned using appropriate
methods.
Note that as of the time this user guide
was written the Model 5154 supports only
single-mode optical cable. Contact Studio
Figure 2. Detailed rear view of the Model 5154 Video Generator/Audio De-Embedder Module showing
the MCU and FPGA boards