Importer Plus Technical Instruction Manual Pre-installation tasks
Page 2-2 Issue 0.02 2010-03-29
Configuring the Importer Plus audio
1. Importer Plus audio card configurations may differ depending on the options specified, but
in general, there will be two audio channels.
2. You must use AES format audio and the sample rate must be set to 44.1 kHz.
3. For best audio performance, synchronize the 44.1 kHz audio sample rate to the HD system
10 MHz reference. See also “Synchronizing the SPS sample rate” on page 2-6.
Selecting a location for the Importer Plus
To ensure that the desired location for the Importer Plus is suitable, perform the following tasks.
1. Determine whether the Importer Plus and its host cabinet will be located in the studio or the
transmitter site. Consider the following choices and associated requirements:
a) If you install the Importer Plus at the transmitter site with the associated NE IBOC,
Exporter or Exporter Plus, you will ease the connection required between the studio and the
transmitter site. In this case you will need to send only SPS audio to the Importer Plus rather
than a LAN connection. See also “Planning the LAN connection” on page 2-3.
b) If you install the Importer Plus at the studio, regardless of the location of the NE IBOC,
Exporter or Exporter Plus, you will need to provide a LAN connection over the studio-
transmitter link (STL). Ensure the STL can support this capability. See also “Planning the
LAN connection” on page 2-3.
2. Ensure you have a cabinet and room space suitable for installing the Importer. See “Physical
requirements” on page 1-4 and “Cooling requirements” on page 1-5.
3. Ensure the Importer Plus is near a standard ac power outlet, 100 - 240 V ac.
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