360 Systems MAXX-6T - Manual (Page 19)

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MAXX 6T Owner’s Manual Page 19
ACX EXPANSION MODULE CONNECTIONS
The ACX Module is a 1RU Rack-mountable module that provides for connection of the audio, serial
and GPI equipment. Connect The ACX Module to the Expansion connector on the rear panel of
MAXX 6T using the supplied 68 Pin SCSI connector. Figure 3 indicates the ACX module’s
connectors and their functions.
Figure 3 - ACX Expansion Module
Audio I/O
The MAXX 6T provides audio inputs and outputs in three formats:
• Balanced analog audio at a reference level of +4 dBu, corresponding to a digital level
of -20dBFS.
• Digital audio in AES/EBU format per AES-3-2000. 48 KHz sample rate, 24 bit.
• SDI embedded audio, 4-channels on SDI audio group 1, channels 1, 2, 3 and 4. 20 bit.
Note that both analog and AES/EBU audio signals are not available at the same time on a given
input or output channel. Internal jumpers select between analog or digital; however, each
channel’s pair of inputs and outputs can be set up differently, if desired. A set of XLR-3 connectors
allows high-quality connections to be made in either format. Refer to Appendix A for instruction on
how to set the unit up for analog or digital audio. Embedded audio appears in the SDI output stream
at all times.
Analog Audio Capability
When the analog audio format is selected, each video channel has two audio channels, recorded
together as a stereo pair. Internal trimmers allow adjustment to unity gain. Refer to APPENDIX H -
AUDIO LEVEL CALIBRATION. The outputs carry channels 1 and 2 when four channel material is
played back.
Digital Audio Capability
When AES/EBU digital audio is selected, each video channel has four audio channels, which are
recorded as two stereo pairs. Because a single XLR connector carries a stereo pair in AES/EBU
format, and only one (monaural) channel in analog, the server provides an extra pair of audio
channels when used with AES/EBU audio signals.