Optical sdi input, Digital audio inputs – Studio Technologies 5152 V.3 User Manual
Page 11

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
