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Studio Technologies 92 User Manual

Page 7

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Model 92 User Guide

Issue 1, December 2006

Studio Technologies, Inc.

Page 7

being tested. And, depending on which test
is selected, will also display the test results
in a variety of ways. These green-colored
LED displays were selected for their visibility
and long-term reliability. An LED indicator is
also provided to confirm when data associ-
ated with the master/slave mode data link is
present.

The Model 92 provides two automatic test
sequences: auto test and continuous auto
test. The auto test sequence is the unit’s
fastest test method, specifically included to
support busy field broadcast applications.
It takes less than six seconds from the time
the auto test pushbutton is pressed until
the test results are displayed. In the chan-
nel mode, auto testing begins with channel
1 and continues on through to channel 12.
When selected for pin mode auto test-
ing will begin with pin 1 and continue on
through pin 36. (While available for manual
testing, pin 37 is not part of the auto test

sequences.) During the auto test sequence
the LED display will indicate which channel
or pin is being tested.

At the end of the entire test sequence one of
three result messages will then display: ALL
OK, FAIL, or OPEN. As expected, when the
result is ALL OK the DT12 is ready for use.
A FAIL message will display if one or more
errors are detected. And OPEN will display
should no pins be detected as being con-
nected. This typically indicates that the
cable designated for testing has not been
correctly connected to the Model 92.

The continuous auto test sequence is
enabled whenever the auto test button is
pressed and held. Using this test sequence,
the Model 92 will test all channels or pins
followed by a summary results message.
However, the difference with this test se-
quence is that the results for each individual
channel or pin will be displayed as testing

Press and hold auto
test button to enable
continuous auto test.

Figure 2. Model 92 Configuration—Continuous Auto Test

System mode LED will flash
to indicate that continuous
auto test is active.