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ADB Longshine Fast Ethernet Switching Hubs
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| Longshine Ethernet Switch 16x or 24x port |
ADB have unveiled their concept of an Ethernet lighting network based around the public domain ArtNet protocol. ArtNet is designed to allow distribution large amounts of data over a wide area. A total of 256 DMX512 universes (over 32,000 channels) are available. The DMX universes are organised as 16 SubNets.
Use of Ethernet Switches
An Ethernet network can slow considerably as the amount of traffic rises: this is because data is forced to wander the entire network in search of its destination.
Primarily, a switch acts in the same way as a standard Hub, distributing data over the network to all connected devices. However, it also corrects the problem of slow data rates, by ensuring that data goes straight from its origin to its proper destination, with no wandering in-between. Switches remember the address of every node on the network, and anticipate where data needs to go. Nodes (such as Netgate, Netport, or an ISIS enabled control desk) connected to a switch can expect an immediate 40%-60% increase in network performance.
A switch can also connect networks of different speeds together. A 100Mbps network, for example, could be connected to a slower 10Mbps network by inserting a switch between the two networks. In this way, switches are good for migrating to faster network speeds without having to discard older legacy network hardware.
ADB Ethernet Switches
ADB offers two Ethernet switches, providing a choice of 16 or 24 connection ports. Each is available in 19" rackmount format. The key features are highlighted below:
- 16x or 24x 10 Base-T/100Base-TX RJ-45 ports
- Complies with IEEE802.3 , IEEE802.3u standards
- Supports NWay protocol for speed (10/100Mbps) and duplex mode (Half/Full) detection
- 19" standard rack-mount design
- One uplink port for cascading switch to switch or switch to hub with no cross-over cable
- Wire-Speed packet filtering and forwarding rate
- Store-and-forward architecture filters fragment & CRC error packets
- Supports 16K MAC address entries in the whole system
- 512 Kbyte buffer memory
- Supports extensive LED indicators for network diagnostics
- Internal universal switching power supply (100-240VAC, 50/60Hz)
- FCC Class A, CE
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