Allen & Heath Remote Audio 2 Module Ports:

EtherSound is a popular low latency industry networking standard supporting 64 channels of bi-directional audio over CAT5 cable. A growing number of third party ES equipped devices are becoming available for remote audio distribution, PC recording, speaker controllers, amplifiers and more. A single cable transports audio in both directions. The second socket allows further networking beyond the iLive or GLD. Note that ‘IN’ and ‘OUT’ refer to the direction of the audio master, not direction of audio. A control port provides access to the routing configuration within EtherSound and opens up many more networking possibilities.

Features:

• RAB-2 allows iLive-T112 and T80 surfaces to be used with iDR-0 and iDR-10 MixRacks; T surfaces have with port-A ACE connection as standard, the MixRack will need RAB-2 with M-ACE-A card fitted in port-A.
  
• RAB-2 allows iDR-32 and iDR-48 MixRacks to be used with iLive 80/112/144/176 surfaces with a choice of I/O fitted in the rear (such as AES/EBU) iDR32/48 have the port-A ACE
• Connection fitted as standard, the iLive surface will need RAB-2 with M-ACE-A fitted in port-A.
• RAB-2 allows ACE to be used in iLive systems (before we offered only EtherSound), MixRacks and surfaces will need RAB-2 and be fitted with M-ACE-A cards in port-A.
• Redundant (zero packet-loss) capability is available in this configuration; simply use a second cat5 cable to connect the M-ACE modules is redundancy is
  required.