Alyseum AL-22c User Manual download pdf (Page 8)

AL-88c – User’s manual © - Revision 1.7

Page 8

7 About

7.1 Ethernet

Alyseum products rely on Ethernet to transport data; compared to other solutions (USB,

IEEE1394, ...) Ethernet offers many advantages:

● Available on all computer platforms

● No real limit in cable length and node connections.

● Full Duplex.

● Very high bandwidth.

● Very low Latency.

● Frees the computer of the MIDI flow handling of USB/Firewire interfaces

● Embedded devices can work without any computer in the network

● Peer to peer capability.

● Full electrical isolation between machines, preventing audio hum due to ground loops.

● Low cost, ubiquitous and reliable infrastructure.

7.1.1 Note about Wi-Fi use

Using these products via Wi-Fi is possible but not guaranteed. Wireless transmissions are

subject to perturbations that require data resending which implies unavoidable delays which

are inconvenient for real-time musical purposes.

This is why Alyseum only guarantees good performance when using wired network.

7.1.2 Tips for a efficient Ethernet Network

The performance of an Ethernet network is always related to the weakest link.

● Use the WI-FI only for the web, Email, ... and the wired network of your computer for

the CopperLan and audio streaming

● For large installations, use an additional network card in your computer to create a

network dedicated only for CopperLan and audio streaming

● For large installations , preferably use Gbit Ethernet switches to guarantee a better

data exchange

● Avoid Ethernet HUB as these create collisions in messages that could hamper the

overall network performance

7.2 CopperLan

CopperLan offers many advantages:

● Connectivity guaranteed with any hardware/Software supporting CopperLan.

● No IP addresses, thanks to an address abstraction layer.

● Protocol and networking system for command & control + streaming management.

● Self configuring & Plug and Play.

● Decentralized work distribution and storage – every CopperLan equipment

incorporates its own server.

CopperLan manages MIDI in a more powerful and flexible than any other technology

available. The benefit of having its own dedicated protocol surpasses the afterthought

solutions relying on TCP/UDP-IP in terms of speed and user-friendliness.

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Alyseum AL-22c User Manual Page 8