Studio Technologies 41 2013 - Manual (Page 8)

Issue 3, November 2013 Model 41 User Guide
Page 8 Studio Technologies, Inc.
performance. The 200-series units com-
bine a variety of microphone control,
headphone monitoring, IFB and intercom
system interfacing, and related functions
into compact desktop units. Legacy
listen-only beltpacks from RTS, including
the 4020 and 4030, can also be directly
supported.
Alternate Applications
In addition to broadcast intercom applica-
tions, the Model 41 can be used to create
high-performance stereo headphone cue
systems. Line-level signals coming from
an audio console, a routing switcher, or
an off-air receiver can be connected to the
Model 41’s audio inputs. The IFB outputs
can be connected to listen-only beltpacks,
several models of which are available from
Studio Technologies. For example, the
Model 35 Talent Amplifier will allow one or
two pairs of stereo headphones to be sup-
ported. Each of the Model 41’s four IFB
output circuits will support up to six Model
35 Talent Amplifiers.
Installation
In this section you will be installing and
interconnecting the Model 41. The one-
rack-space unit will be mounted in
an equipment rack. Audio input connec-
tions will be made by way of a 25-pin
D-subminiature connector. IFB outputs
will be interfaced using four 3-pin XLR
connectors. AC mains power will be
connected by means of a detachable
cord that is compatible with the Model
41’s 3-pin IEC 320 C14 inlet connector.
System Components
The shipping carton contains the Model
41 Interface and associated user guide.
Units are also supplied with an AC mains
cord that has a North-American (NEMA
5-15P) standard plug on one end and an
IEC 320 C13 connector on the other end.
Units bound for other destinations may
require a different cord set; your dealer
or distributor should provide one.
Locating the Model 41
The Model 41’s IFB outputs provide DC
power and unbalanced audio to operate
external IFB user devices. These devices
are often IFB “beltpacks,” broadcast
announcer consoles, or other “talkback
boxes.” The Model 41’s mounting loca-
tion will dictate the length of the cable
runs needed to link the unit with the con-
nected devices. In some cases the loca-
tion choice is already established. For
example, in mobile broadcast applications
the Model 41 will almost always be located
in a production truck or trailer. But in fixed
applications it may be possible to select
the Model 41’s mounting location so as to
minimize cable length. In general, shorter
cables will lead to more reliable and
consistent system performance. It’s also
helpful if a technician can readily view and
access the monitor section that is located
on the right side of the Model 41’s front
panel. The output status LEDs and levels
meters can serve important roles in ensur-
ing correct IFB output operation. Access
to the headphone output jack and level
control can also be useful.
Mounting the Model 41
Once the desired mounting location has
been selected, the Model 41 will require
one space (1U or 1.75 vertical inches) in