Studio Technologies IFB Plus 2001 - Manual (Page 11)

Model 2 User Guide Issue 7, November 2001
Studio Technologies, Inc. Page 11
position. A click-free analog switch mutes
the monitor output whenever the internal
microphone or a Model 22 Access Station,
if installed and configured, is interrupting
either IFB channel.
Model 22 Access Station
The Model 22 Access Station provides
the capability to add up to four additional
interrupt locations. Model 22s are in-
tended to be installed at positions conve-
nient to producers, directors, or other
personnel who need to “cue” talent and
related personnel. The unit consists of a
metal chassis containing two lighted push-
button switches, unbalanced microphone
and balanced line inputs, and status and
control circuitry.
The two high-quality, back lit push-button
switches provide access to the two IFB
channels. The lights in the switches dis-
play when an interrupt is taking place on
its respective channel. When a channel is
idle, the light is lit dimly. An input select
switch allows connection of a Model 11A
gooseneck microphone or a line-level
signal. The electronically balanced line-
level input allows interfacing with other
communications equipment, such as an
intercom system.
The Model 22 can be configured to mute
the Model 2’s monitor amplifier output.
This function will prevent acoustic feed-
back from occurring when a Model 22
is located close to the Model 2’s monitor
speaker.
Model 22 Access Stations are linked to
the Model 2 Central Controller via 9-pin
D-type female connectors. Each access
station contains two connectors, allowing
a simple daisy-chain installation. The nine
leads carry all signals; audio, control,
status lamp (tally), and power. The Model
2 provides all power required by the
access stations. The Model 25A 19-inch
Rack Adapter is available to mount a
Model 22 and a Model 11A gooseneck
microphone in one space of a 19-inch
rack. The Model 28A Panel Adapter allows
a Model 22 and a Model 11A gooseneck
microphone to be mounted in a panel
opening.
Model 32 & Model 33
Talent Amplifiers
The Model 32 and Model 33 Talent Ampli-
fiers are self-contained “belt pack” units
that drive talent ear pieces or headsets.
A single 3-conductor microphone-type
cable links the Model 2 with the talent
amplifiers. Each Model 32 and Model 33
contains both a male and female XLR-type
connector, allowing simple “loop through”
connection of multiple units. Up to four
talent amplifiers can be connected to,
and powered by, a single Model 2 Central
Controller. On each talent amplifier the
audio output signal is provided on a stan-
dard ¼-inch 2-conductor phone jack. An
LED on each unit lights whenever power
is present, providing setup assistance and
user confidence. Identical in size, each is
housed in a lightweight, yet rugged, alumi-
num housing. A belt clip allows it to be
attached to belts, clipboards, scabbards,
pizza boxes, production assistants, etc.
An optional mounting adapter is available,
allowing a Model 32 or 33 to be installed
in a permanent location.
The Model 32 is intended for use by on-air
personnel, and contains a source switch,
along with an output level control. Either
IFB channel 1 or IFB channel 2 can be
sent to the talent, along with the desired
audio “volume.”