Studio Technologies 5152 V.3 - Manual (Page 10)

Issue 2, June 2013 Model 5152 User Guide
Page 10 Studio Technologies, Inc.
Model 5152
Video Generator/Audio Embedder Module
Coaxial (BNC) SDI Input
An SDI source can be connected to
the Model 5152 by way of a broadcast-
standard BNC connector. This is referred
to as the coaxial (BNC) SDI input. Refer
to Figure 2 for a detailed view of the con-
nector’s location on the rear of the module.
The coaxial (BNC) input is compatible
with SMPTE-compliant HD (1.485 Gb/s
nominal) and 3G (2.97 Gb/s nominal) SDI
signals. It is not compatible with SD-SDI
(standard definition 270 Mb/s) signals. The
exact format/rate combinations supported
by the Model 5152 are listed in the Specifi-
cations section of this guide.
A configuration switch setting must be
made for the coaxial (BNC) SDI input to be
active. Refer to the Configuration section of
this guide for details.
Optical SDI Output
This section applies only when the specific
Model 5152 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 5152. These include
a transceiver module that has both an
optical output (transmitter) and an optical
input (receiver), as well as an output-only
(transmitter) module. 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 5152 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. 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 physi-
cal 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 5152 supports only
single-mode optical cable. Contact Studio
Technologies should support for multi-
mode fiber be required.
The Model 5152 module should remain
without power whenever its optical output
has not been terminated. This ensures that
the optical energy will not project into free
space and possibly into the eyes of instal-
lation personnel. The optical output power
of video SFP modules selected by Studio
Technologies adheres to the class 1 laser
standard. As such, they do not emit suf-
ficient power to be considered hazardous.
But best safety practices require that the
optical output port and connected fiber end
not be directly viewed.
No configuration switches or other settings
are required to activate the optical output. It
is always active and will contain the same