Studio Technologies 5152 V.3 - Manual (Page 12)

Issue 2, June 2013 Model 5152 User Guide
Page 12 Studio Technologies, Inc.
Model 5152
Video Generator/Audio Embedder Module
The connected signals do not have to be
synchronized with each other or the asso-
ciated SDI input and output signals. This
is because each of the Model 5152’s digital
audio input circuits has a sample-rate-
conversion (SRC) function associated
with it. Digital audio signals with a sample
rate of 32 to 48 kHz and a bit depth of up
to 24 are compatible. The nominal refer-
ence signal level of the connected digital
audio source can follow either the AES
(–20 dBFS) or EBU (–18 dBFS) standard.
This is because the embedding function
simply takes the incoming digital audio
“bits” and inserts them into the correct
data locations in the SDI signal.
An interconnecting cable assembly must
be prepared with a 9-pin male D-subminia-
ture plug (DE-9M) on the end intended for
connection with the Model 5152. This cable
will interface the digital audio signals with
the 9-pin female “D-sub” (DE-9F) connec-
tor located on the back of the Model 5152.
Refer to Figure 3 for detailed connection
information.
It’s expected that four independent pieces
of coaxial cable will be used to bring the
unbalanced digital audio signals into the
DE-9M plug, so using miniature coaxial ca-
ble is highly recommended! The connector
pin assignments were carefully selected
to assist in making these “hot” and “shield”
connections.
As a final step, the cable assembly’s 9-pin
plug should be mated with the connector
on the Model 5152. The locking screws on
the ends of the plug should be securely
affixed to the “ears” of the connector. The
two threaded fasteners associated with
the “D-sub” use 4-40 threads.
DC Input and Data Bus
A 4-position header, located adjacent to the
9-pin D-subminiature connector, is used to
connect DC power and a local serial data
bus to the Model 5152. Two pins on the mat-
ing connector are used to connect a source
of nominal 12 volts DC. The acceptable
range is 10 to 18 volts DC with a maximum
current of 400 milliamperes at 12 volts DC.
For remote control operation two pins on the
mating connector will implement an RS-485
data bus connection from a Studio Technolo-
gies’ Model 5190 Remote Access Module.
The mating connector is compatible with
the AMP MTA-100 series of IDC recepta-
cles. For 22 AWG wire the closed-end-style
receptacle is AMP 3-643813-4; the feed-
through-style receptacle, used for busing
connections, is AMP 3-644540-4. The body
color for both receptacles is red, following
the convention of the MTA-100 series for
compatibility with 22 AWG wire. Refer to
Appendix B of this guide for additional
connector details.
1. – DC (Common)
2. + DC (10-18 volts)
3. + Data (RS-485)
4. – Data (RS-485)
Figure 4. DC Input and Data Bus Connections
Mounting
The Model 5152 is intended for mount-
ing in an installation-specific enclosure or
rack panel. Refer to Appendix C at the end
of this guide for details on the required
mounting opening and screw locations.
Please contact the factory to discuss
mounting options.