In case you didn’t know, AVB is the new IEEE open standard that allows media streams to be carried over Ethernet networks — it’s what Audinate uses for Dante and Harman uses for HiQnet.
Tesira is a modular system and the base is the so-called server. Tesira SERVER can accommodate up to eight DSP-2 cards per chassis and two network cards for AVB or CobraNet in any combination. Or, there’s a SERVER-IO, which can support up to 12 Tesira I/O cards for up to 48 channels of audio I/O (e.g., mic and line level, VoIP and telephone interface). The SERVER-IO can also be configured with one 420×420 channel AVB-1 card or one AVB-1 card and one or two 32×32 channel SCM-1 cards.
Controllers include two different surface-mounted or in-wall LCD-based keypads, RS232 or Ethernet. Complete specs on the Biamp Tesira are here: http://www.biamp.com/products/tesira/index.aspx