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6 about – Alyseum MS-4 User Manual

Page 14

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MS-4 – User’s manual © - Revision 1.4

Page 14

6 About

6.1 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 galvanic isolation between machines, preventing audio hum due to ground loops.
● Low-cost, ubiquitous and reliable infrastructure.

6.1.1 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.

6.1.2 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 Gigabit Ethernet switches to guarantee a better data

exchange

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

network performance

6.2 CopperLan

CopperLan offers many advantages:

● Connectivity guaranteed with any hardware/software supporting CopperLan.
● No IP and DHCP configuration, thanks to an address abstraction layer.
● Protocol and networking system for command & control + streaming management.
● Self-configuring and Plug & Play.
● Universal remote editing with labels, dedicated data types and high resolution.
● 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 user-friendliness.