User manual

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Now you are ready to test your connection. If you have done everything correctly, you should
now have communications between the Nion and the CAB 4n. If so, the front panel TX and RX
LED’s will indicate traffic. You can further test the connection by testing the functions of the
CAB and verifying the response.
Setting the Audio Bundle
Now that you have established communications between the MediaMatrix software and the CAB
4n hardware, you will need to prepare the network to pass audio. CobraNet™ is a powerful
protocol that allows you to pass up to 64 channels (32 in by 32 out) of digital audio per
MediaMatrix MM-DSP-cn or Nion CM-1 Digital Audio Processing card to a practically
unlimited number of CAB Series products.
The first order of business is to plan your system out. Good system design and careful planning of
your resources, routing, processing and distribution requirements will ensure a seamless
installation of the audio network. You should have a systemic method of assigning your hardware
IDs and your Audio Bundles. For example, you may want to number all incoming audio as odd
numbered bundles, and outgoing audio as even numbered bundles. You may want to create a
numbering scheme that synchronizes the Hardware Base Address IDs with the Audio Bundles so
that there is some consistency in the way your system is identified. Remember that in CobraNet,
audio travels across the network in a Bundle*.
For a CAB 4n a Bundle is defined as four (4) digital audio channels (1 Bundle per MM 4 Ch
card). These channels get into, and out of, the MediaMatrix processing engine via the CobraNet
Input and Output Block or within NWare via individual CM-1 Flyoffs. If this is not clear to you,
please go back and review the section entitled, “Hardware & Software Devices” and “The Test
View” earlier in this manual. In order to get audio into the system, we have to set an Audio
Bundle number on a CobraNet Input Block or within the NWare NioNode CM-1 table.
The number is a normal number and the range is OFF to 32,767. For switched networks, the
number must be 256 or higher*. You do not need to be concerned with additional zeros or other
syntax. The number you set is what you get. To set the Bundle Number, place your Control Mode
cursor over the box next to the Bundle label in the CAB control device and type a number, any