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Appendix C: Options
764 Digital Audio Monitor User Manual
97
Connecting the Instrument
The appropriate method of connecting the Option 02 analog outputs
to your system depends on the configured output level and the
requirements of your particular installation.
High-level, Balanced Output. When using high-level fixed or variable
balanced output, connect the 764 to your system with standard
shielded XLR cables. The analog line output polarity matches Figure
39 when the instrument is configured for variable high-level output.
If you are using fixed output, and output phase must match input
phase, reverse the connections to pins 2 and 3.
Pin 3 (–)
Pin 2 (+)Pin 1 (shield)
Male XLR
Figure 39: Standard balanced-output pin assignments
Low-level, Unbalanced Output. When using low-level output to drive an
unbalanced load such as a consumer amplifier, you must use cables
that short either pin 2 or pin 3 to pin 1, the shield/ground. The output
will not meet the distortion specification if you do not ground one of
the output lines.
Connecting an unbalanced load as shown in either the top or bottom
of Figure 40 ensures that the phase of the signal at the unbalanced
input matches the phase of the 764 input.