Manual

Issue 3, August 2018 Model 44D User Guide
Page 28 Studio Technologies, Inc.
GPI, GPO, and Auxiliary DC Output
Access to the GPI, GPO, and auxiliary
DC output functions on the original units
requires the use of an interface cable as-
sembly. One end of the interface cable
requires a 10-conductor socket that has
two rows of five connectors on 0.1-inch
centers. The socket will mate with a 10-pin
header that is located on the Model 44D’s
circuit board. Access requires that the
cover be removed. The other end of the
interface cable will terminate on the de-
sired mating connector, typically a 9-pin
female D-subminiature (DE-9F). It’s ex-
pected that a 10-conductor 0.050-inch
center ribbon cable will be utilized by the
interface cable. For details on where the
10-pin header is located refer to Figure 9.
For details on the header’s pin connec-
tions and related 9-pin D-sub pinout refer
to Figure 10.
It’s expected that in most cases Model
44D units will be used only to transport
audio to and from a Dante network. The
GPI, GPO, and auxiliary DC output func-
tions are appropriate for some special-
ized applications but the use of them will
be limited. If a user of an original-vintage
Model 44D requires the use of these func-
tions it’s certainly possible to access them.
A custom interface cable can be fabri-
cated following the information provided
in Figures 9 and 10. Alternately, please
contact technical support at Studio Tech-
nologies for details regarding obtaining a
pre-fabricated interface cable.
Figure 10. Model 44D GPI/GPO/Aux DC Out 10-pin header location (applies to M44D-00151-00250)