DigiDesign 882/20 Руководство по установке - Страница 9
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5. 50-pin Interface Connector
This 50-pin connector is used to connect
the 882/20 I/O to a MIX card, d24,
Disk I/O, or DSP Farm card. The necessary
cable is supplied with your Audio Inter-
face. If you plan to connect two
882/20 I/O Interfaces to a MIX card or d24
card, a 16-channel peripheral cable
adapter is necessary. (This cable is available
from your Digidesign dealer.)
6. Power Input
This connector accepts a standard AC
power cable. The Interface is auto power
selecting (100 V–240 V), and will automat-
ically work with a standard modular cable
to connect to AC power receptacles in any
country.
Making Signal Connections
to the 882/20 I/O
Depending on how you plan to use the
882/20 I/O, the way you connect it to your
studio will vary.
Choosing between +4 dBu and
–10 dBV operation modes
The 882/20 I/O can be set to operate at
+4 dBu or –10 dBV input and output lev-
els. It is important that you determine
which line level mode is appropriate for
your studio. In +4 dBu operating mode,
the 882/20 I/O is a 20-bit digital audio de-
vice capable of producing audio signals at
or near +18 dBu. Check the owner's man-
ual for your mixer, power amplifier or ef-
fects processor to see if it can handle this
load. If it cannot, consider setting the
882/20 I/O to operate at –10 dBV line lev-
els.
Consider the following when connecting a
mixer:
If your mixer cannot handle more than
1.5V (RMS) inputs at +4 dBu, then you
should set the 882/20 I/O to operate at
–10 dBV line level.
If your mixer can handle up to 6.15V
(RMS) inputs, or has pads or attenuators
on its inputs, then you can use the +4 dBu
setting on the 882/20 I/O.
Most manuals contain device input speci-
fications, including whether or not there
are pads or attenuators. Consult the man-
ufacturer of your mixer or power amplifier
for further information.
Using the 882/20 I/O 5