Studio Technologies 41 2007 - Manual (Page 9)

Model 41 User Guide Issue 2, February 2007
Studio Technologies, Inc. Page 9
with a nominal operating level in the range
of +4 dBu can be successfully connect-
ed. Transformer coupled, the inputs are
compatible with balanced or unbalanced
signals. In many applications the analog
outputs from digital matrix intercom sys-
tems will be connected to the Model 41.
For on-air television applications the IFB
sources are generally configured to pro-
vide a single- or dual-channel cue “feed”
to talent personnel. In such cases channel
one of a pair is generally designated as
the “interrupt” channel while channel two
is the “program” channel. For other broad-
cast applications, such as live radio, it’s
possible that a stereo cue source will be
connected. In this situation the left source
would be connected to input channel one
while the right source would be connected
to input channel two. This might also be
the case with other professional audio
applications, such as recording and post-
production.
Audio input connections are made by way
of one female 25-pin D-subminiature con-
nector which is located on the Model 41’s
back panel. A cable harness is required
with a 25-pin D-sub plug (male) on one
end and the desired mating connectors on
the other. This cable harness is not sup-
plied by Studio Technologies. (Note that
Signal Signal
Connections High (+) Low (–) Shield
IFB Circuit 1-Interrupt 24 12 25
IFB Circuit 1-Program 10 23 11
IFB Circuit 2-Interrupt 21 9 22
IFB Circuit 2-Program 7 20 8
IFB Circuit 3-Interrupt 18 6 19
IFB Circuit 3-Program 4 17 5
IFB Circuit 4-Interrupt 15 3 16
IFB Circuit 4-Program 1 14 2
Notes: 1) Connector type on Model 41 is 25-pin
D-subminiature female. Installer must provide plug
(male). Connector uses 4-40 threaded inserts for
locking with mating plug.
2) Wiring scheme follows TASCAM DA-88 convention.
Standard DA-88-style wiring harnesses are directly
compatible, with the exception of 4-40 screw threads
being required.
Figure 2. Connections for Audio Inputs using
IFB Nomenclature
Figure 1. Detail of back panel showing connector used for audio inputs
in some locations the term “cable loom”
may be used instead of “cable harness.”)
The wiring scheme used by the D-sub
complies with the now-ubiquitous one
made familiar by TASCAM® with their DA-
88® product. A wiring harness prepared
for connection to the Model 41’s audio
inputs is identical to a DA-88-style input
harness. Please refer to Figures 2 and 3
for connection details. Note that unlike a
DA-88-style harness, the Model 41’s D-sub