Manual

Issue 2, August 2019 Model 371A User Guide
Page 20 Studio Technologies, Inc.
MODEL 371A
INTERCOM BELTPACK
the following text provides a summary of
the changes:
• All configuration selections for the
Model 371A are performed using the
STcontroller software application.
STcontroller also allows the version
numbers of the Model 371A’s applica-
tion firmware (embedded software)
and Ultimo firmware to be remotely
identified.
• Support for electret microphones was
added to the Model 371A. This involved
adding a 5 volt DC power source to the
microphone input circuitry. This power
source can be enabled or disabled as
required using STcontroller.
• The configurable microphone input gain
settings were modified to be compatible
with the increased output level supplied
by electret microphones.
• The DIP switch assembly on the Model
371 is not present on the Model 371A.
As such the belt clip no longer needs
to be rotated and its mounting arrange-
ment has been changed.
• The user-accessible sidetone trim po-
tentiometer found on the Model 371
is not present on the Model 371A. In
the Model 371A the level of the side-
tone function is configured using
STcontroller.
• The Model 371A offers a second meth-
od of activating the mic kill function.
This allows a data signal, in addition
to the Device ID command, to activate
mic kill.
• The STcontroller software application
now offers the ability to configure the
mic kill function, including allowing it to
be disabled.
Belt Clip
The belt clip is attached to the back of the
Model 371A’s enclosure by way of two 6-32
thread, Philips-head machine screws. Un-
like other the original Model 371 Intercom
Beltpack units, the belt clip on the Model
371A will never have to be rotated as part
of the configuration process. (There are no
configuration DIP switches under the belt
clip.) But if the belt clip does need to be
replaced a #1 Philips-head screw driver
would be the correct tool to remove the
machine screws.
Restoring Factory Defaults
A command in the STcontroller software
application allows the Model 371A’s con-
figuration to be reset to the factory default
values. From STcontroller select the Model
371A for which you want to restore its
defaults. Select the Device tab and then
select the Factory Defaults feature. Then
click on the OK box. Refer to Appendix A
for a list of the Model 371A’s factory default
values.