Installation guide

TDM Installation Guide30
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 interface. 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 neces-
sary. (This cable is available from your Digide-
sign dealer.)
Power Input
This connector accepts a standard AC power ca-
ble. The interface automatically selects power
(100 V to 240 V), and will automatically 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 stu-
dio 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 levels. It is impor-
tant that you determine which line level mode
is appropriate for your studio. In +4 dBu operat-
ing mode, the 882/20 I/O is a 20-bit digital au-
dio device capable of producing audio signals at
or near +18 dBu. Check the owner’s manual for
your mixer, power amplifier or effects processor
to see if it can handle this load. If it cannot, con-
sider setting the 882/20 I/O to operate at
–10 dBV line levels.
Consider the following when connecting a
mixer:
◆ If your mixer cannot handle more than 1.5 V
(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 8.5 V (RMS) in-
puts, 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 specifica-
tions, including whether or not there are pads or
attenuators. Consult the manufacturer of your
mixer or power amplifier for further informa-
tion.
Setting Up Your Studio
The following diagrams provide general sugges-
tions for connecting studio gear to your system.
Figure 1 illustrates a studio setup with the
882/20 I/O connected to a mixing console, with
effects and other gear routed into the console as
well.
Figure 1. Typical studio configuration with mixer
connections
Power Amp
and Speakers
S/PDIF Digital Input/Output
To DAT Recorder
Inputs/Outputs 7-8
To Effects Device
DAT Recorder
Instruments
Connected to Console
Analog
Audio
Outputs 1-6
Effects Devices
Effects Device
Tape Returns
or Inputs 1-6
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Analog
Audio
Inputs 1-6
Channel
Outputs 1-6
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TDM_Install.book Page 30 Saturday, January 13, 2001 9:35 PM