Studio Technologies 591 - Manual (Page 14)

Model 58/591 User Guide Issue 1, September 1999
Studio Technologies, Inc. Page 17
ensure that performance would always be
correct!) Refer to the Configuration section
of this guide for details on setting the DIP
switches.
Configuration
After the physical installation has been
completed, several configuration issues
must be addressed. On the Model 58
Central Controller, the unit ID and operat-
ing mode must be set. In addition, the
main input, insert return, and monitor
output signal levels must be calibrated
using trim potentiometers. As a final step,
the operating parameters of the system
will be set using the Model 591 Control
Console’s configuration mode.
Model 58 DIP Switches
The Model 58 Central Controller must
be “taught,” using the front panel DIP
switches, its unit ID and operating mode.
This is required to support operation with
the Model 591 Control Console. DIP
switches 1-4 provide the Model 58 with
its unit identification number. To support a
Model 591 the unit ID must be one, which
is selected by setting all four switches to
the off (down) position. DIP switches 5 and
6 set the Model 58’s operating mode. To
the support the Model 591 switch 5 must
be in the off (down) position, while switch
6 must be in the on (up) position. DIP
switches 7 and 8 are not currently sup-
ported by the Model 58, but are best left in
the off (down) position. So to summarize,
to support a Model 591 Control Console
requires DIP switches 1-5 and 7-8 to be in
the off (down) position; switch 6 must in
the on (up) position.
Note that any time one of the Model 58’s
DIP switches is changed the data LED,
located to the right of the switches, will
flash. This is normal, being provided for
factory confirmation of correct switch
operation.
Once the DIP switches have been cor-
rectly set the AC mains power must be
disconnected, then reconnected. This
causes the previous configuration to be
erased, and the new one implemented.
Failure to perform this step will prevent
the Model 58 from reacting to changes
made to the DIP switches.
Failure to perform a fresh “power up”
after changes have been made to
the DIP switches will prevent correct
operation!
Level Calibration
Fourteen multi-turn trim potentiometers
grace the front panel of the Model 58
Central Controller. Eight are provided
for the main inputs, four for the insert
returns, and two for the monitor outputs.
Taking time to carefully adjust the trim
pots will ensure that accurate monitoring
can take place. Each trim pot allows an
adjustment range of ±2dB, which is spread
over the trim pot’s 15 turns. Calibrating
the levels down to a tenth of a dB is easily
performed.
The meter outputs are used as the mea-
suring point when adjusting 12 of the 14
trim pots. Unless calibrated level meters
are already connected to the meter out-
puts, an external audio level meter is
required. In addition, the audio sources
connected to the main inputs must be
configured to generate steady signals at
nominal operating level. Those interested