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Optical sdi input, Digital audio inputs – Studio Technologies 5152 V.3 User Manual

Page 11

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Model 5152 User Guide

Issue 2, June 2013

Studio Technologies, Inc.

Page 11

Model 5152

Video Generator/Audio Embedder Module

SDI data as that found on the coaxial
(BNC) output. As such there is no problem
in simultaneously connecting to both the
optical and coaxial (BNC) outputs.

Optical SDI Input

If supported by the specific Model 5152
module being installed, an HD- or 3G-SDI
signal transported on a single-mode
optical fiber can be connected. For this
to occur a video SFP transceiver or a
receive-only SFP module must have been
installed in the SFP “cage” in the back of
the unit. The optical receiver circuitry in an
SFP module is “broadband” and doesn’t
need a specific wavelength of single-mode
optical signal for correct operation. As long
as the optical signal has a wavelength
between 1250 and 1650 nanometers and
meets the applicable SMPTE standards
it will be recognized correctly.

A single-mode optical fiber terminated
with an LC plug can be connected to the
receive port on the SFP module. Refer to
Figure 2 for details on the location of the
SFP module. This port is on the right side
when looking directly at the back of the
SFP module. Ensure that the LC plug fully
“mates” with the receive port and its tab is
locked into the slot of the SFP module.

A configuration switch must be appropri-
ately set to enable the optical SDI input.
There is no automatic switching between
the optical and coaxial (BNC) SDI inputs.
Only one of the two SDI inputs can be
selected and active at a time. Refer to
the Configuration section of this guide
for details.

Digital Audio Inputs

Up to four unbalanced digital audio sourc-
es can be connected to the Model 5152.
Following SMPTE standards, they will be
embedded into the externally-supplied or
internally-generated SDI signal. The four
serial digital audio sources represent eight
audio channels, two per serial digital audio
signal. The sources must comply with the
AES3 standard for unbalanced digital au-
dio signals. These have a characteristic im-
pedance of 75 ohms and a nominal signal
level of 1 volt peak-to-peak. This type of
signal was previously referred to as being
an AES3id digital audio signal.

6

Input 1 (audio channels 1/2)

1

Shield 1

7

Input 2 (audio channels 3/4)

2

Shield 2

8

Input 3 (audio channels 5/6)

3

Shield 3

9

Input 4 (audio channels 7/8)

4

Shield 4

5

Not Used

Notes:
1) Connector type on Model 5152 is a 9-pin
D-subminiature female (DE-9F). Installer must
provide a 9-pin D-subminiature male (DE-9M).
Connector uses 4-40 threaded inserts for
locking with mating plug.

2) All inputs AES3 unbalanced digital audio;
75 ohm/1 Vpp (formerly AES3id).

3) Total of eight audio channels (four “stereo”
pairs).

Figure 3. Digital Audio Input Connections