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!Latency
!Maximum available sampling rate
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|AES47[http://www.aes.org][http://www.ninetiles.com]
|ATM
|Isochronous
|Coexists with ATM
|Any IP or ATM protocol
|Mesh
|Provided by ATM
|Cat5=100m, MM=2km, SM=70km
|Unlimited
|Unlimited
|125 μs per hop
|192 kHz
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|AES50[http://www.aes50.com]
|Ethernet physical layer{{efn|Ethernet transport is combined with a proprietary audio clock transport. AES50 and HyperMAC are point-to-point audio connections, but they bridge a limited bandwidth of regular Ethernet for the purpose of control communications. An AES50/HyperMAC router contains a crosspoint matrix (or similar) for audio routing, and an Ethernet switch for control routing. The system topology may therefore follow any valid Ethernet topology, but the audio routers need a priori knowledge of the topology. While there are no limits to the number of AES50 routing devices that can be interconnected, each hop adds another link’s worth of latency, and each router device needs to be controlled individually.}}
|isochronous or synchronous
|dedicated Cat5
|5 Mbps Ethernet
|Point-to-point
|FEC, redundant link
|Cat5=100m
|Unlimited
|48 channels
|63 μs
|384 kHz and DSD
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|AudioRail[http://www.audiorail.com]
|Ethernet physical layer
|Synchronous
|Cat5 or fiber
|Proprietary
|Daisy chain
|None
|Cat5=100m, MM=2km, SM=70km
|Unlimited
|32 channels
|4.5 μs + 0.25μs per hop
|48 kHz (32 ch), 96 kHz (16 ch)
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|Aviom Pro64[http://www.aviom.com]
|Ethernet physical layer
|synchronous
|Dedicated Cat5 and fiber
|Proprietary
|Daisychain (bidirectional)
|Redundant links
|Cat5e=120m, MM=2km, SM=70km
|9520 km{{efn|The network diameter figure is the largest conceivable network using fiber and 138 Pro64 merger units; derived from maximum allowed response time between control master and furthest slave device.}}
|64 channels
|322 μs + 1.34 μs per hop
|208 kHz{{efn|Pro64 supports a wide variation range from the nominal sample rate values (e.g., 158.8 kHz - 208 kHz).}}
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|CobraNet[http://www.cobranet.info]
|Ethernet data-link layer
|Isochronous
|coexists with Ethernet
|Ethernet, SNMP, MIDI
|Spanning tree
|provided by 802.1{{efn|Network redundancy is provided by 802.1 Ethernet: STP, Link aggregation; redundant network connections (DualLink) and redundant devices (BuddyLink) are supported.}}
|Cat5=100m, MM=2km, SM=70km
|7 hops, 10 km{{efn|Indicated diameter is for 5.33 ms latency mode. CobraNet has more stringent design rules for its lower latency modes. Requirements are documented in terms of maximum delay and delay variation. A downloadable CAD tool can be used to validate a network design for a given operating mode.}}
|Unlimited
|1.33 and 5.33 ms
|96 kHz
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==Notes==
{{notelist}}
==References==
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