Studio Technologies M212-00151 - Manual (Page 6)

Model 212 User Guide Issue 2, June 2006
Studio Technologies, Inc. Page 7
audio interface will find use in specialized
applications, including direct integration
with Riedel® intercom systems. Note that
audio signals received from the bidirec-
tional interface are described in the Cue
Sources section of this document.
For enhanced flexibility, the Model 212
includes the resources to support a third
digital output. Circuitry, located on the
printed circuit board assembly, creates
an AES3 compliant, 110 ohm nominal,
transformer-balanced digital output. Gain-
ing access to this output simply requires
adding a 3-pin male XLR-type connector
to one of the two spare connector loca-
tions on the Model 212’s back panel.
Connector kits, available from Studio
Technologies, make this a simple task.
For specialized applications an optional
direct microphone output card is available.
This allows the Model 212 to support an
analog signal chain for the main output
channel. Of course this output also pro-
vides “click-free” microphone on/off
(“muting”) control.
The Model 212 isn’t limited for use in “on-
air” applications. A special feature can be
enabled, placing the unit in a “production”
mode. When this mode is active enabling
the talkback audio channel will no longer
force the main audio channel to mute. This
allows the main audio channel to be used
as a second talkback output. In this con-
figuration the unit can be even more pow-
erful when used in a live event application,
such as serving as a master console for a
production director.
User Controls and Status
Indicators
Two pushbutton switches, three LED
indicators, and two rotary controls provide
the user with a clear, easy-to-use interface.
One pushbutton switch controls the status
of the main audio channel. This is the au-
dio signal intended for on-air, announce-
ment, or other primary uses. Two LEDs
display the on/off status of the main audio
channel. A second pushbutton switch
controls the status of the talkback audio
channel. This is the audio signal used to
communicate with producers, directors,
spotters, or other behind-the-scenes pro-
duction personnel. A status LED is associ-
ated with the talkback button. Two rotary
controls allow the user to adjust the level
of the stereo headphone output.
Operational Flexibility
Much of the Model 212’s unique capabili-
ties derive from the ability to configure the
on/off control of the main and talkback
audio channels. To meet the needs of the
many specific broadcast and production
applications, a variety of button operat-
ing modes are available. The main but-
ton, located on the left side of the front
panel, can be selected to operate from
among four modes. In the “push-to-mute”
mode the button performs a momentary
mute of the main audio channel. In this
way a “cough” button function is created,
something typically required for television
sports broadcasting. In the “push-to-talk”
mode the button provides a momentary
active function for the main audio channel.
This mode would be appropriate for appli-
cations such as stadium announcement.
An alternate action “latching” configura-
tion allows the button to enable or disable
the main audio channel as desired. This
is useful in radio broadcasting, announce-
booth, or voice-over applications. The
fourth mode provides a hybrid function,
supporting both push-to-talk and tap-
to-enable/tap-to-disable operation. This