Studio Technologies 230 2014 - Manual (Page 8)

Issue 9, November 2014 Model 230 User Guide
Page 8 Studio Technologies, Inc.
discussed in the previous paragraph. The
hybrid mode is especially useful when the
Model 230 is used in a production-support
application.
The main button mode configures how the
main output, when it is in the “latched” on
state, responds to talkback activity. One
choice momentarily turns off the main out-
put when talkback is active, returning the
main output to the on state when the talk-
back function has ended. The other choice
“unlatches” the main output in response to
a talkback function.
IFB Input
A broadcast-standard “wet” (DC with au-
dio) IFB circuit can be directly connected
to the Model 230’s IFB input. Originated by
sources such as the RTS™ 4000-series IFB
system or IFB interface devices from Studio
Technologies, the connected IFB circuit can
provide DC power to operate the Model
230 as well as two channels of cue audio.
Cue Sources
The Model 230 supports the connection
of up to six audio sources, each of which
can be selected for routing to the stereo
headphone output. The sources are IFB
channel 1, IFB channel 2, line input 1, line
input 2, intercom channel 1, and intercom
channel 2. Each source can be individually
assigned to the left channel, right channel,
or both left and right. This allows a wide va-
riety of stereo and mono headphone mixes
to be created.
The two audio signals associated with the
Model 230’s IFB input can be assigned to
the headphone output. Originating in pro-
duction trailers or control rooms, the IFB
circuits typically provide DC power and
program-with-interrupt audio on one chan-
nel and program-only audio on the other.
For application flexibility, two line-level
audio sources can be connected to the
Model 230. Possible signal sources in-
clude off-air receivers, wireless IFB sys-
tems, and audio consoles. The connected
signals can be from two independent
sources, or could be from a stereo audio
feed such as would be associated with a
broadcast music event. Two level trim po-
tentiometers, located on the bottom of the
unit, allow signals with wide nominal audio
levels to be cleanly interfaced.
Audio signals associated with a single- or
dual-channel party-line intercom system
can be routed to the headphone output.
The Model 230’s intercom interface is
compatible with standard party-line inter-
com systems from manufacturers such as
RTS and Clear-Com®.
Headphone Output
Two rotary controls are provided for user
adjustment of the headphone output
levels. For application flexibility the actual
function of the two “pots” is configurable.
For traditional on-air sports applications
they can be selected to the dual level
control mode which provides independent
control of the left and right channel vol-
ume. For use with stereo cue signals, or to
support user preference, the level/balance
mode can be selected. In this mode one
control adjusts the overall level of both
the left and right channels, while the other
allows adjustment of the left/right level
balance. To help minimize the chance of
broadcast cues being missed, both level
control modes can be configured so that a
minimum headphone output level is main-
tained. Alternately, the headphone output
can be set to fully mute when the controls
are at their minimum position.