The UpLink™ network multiplex card links up to 255 digital buses together to create a system with as many as 32,000 digital lighting control devices.

The MetaServer™ digital web server is a gateway that provides Internet or computer access to these devices.

Here's how they work: Up to 127 digital addresses (relay panels, digital switches, etc) may be linked together within a GR 2400 digital bus. Except for the largest projects, this proves to be more than enough capacity. For larger installations where multiple buses are needed to accommodate the large number of digital devices, LC&D has developed a BackBone Bus using the UpLinkâ„¢ card and MetaServerâ„¢ to link up to 255 GR 2400 buses together.

At the head of the BackBone Bus is a MetaServer that does the duty of connecting the whole system via ethernet to a computer or the internet. Connecting each digital bus to the BackBone Bus is an UpLink card. It captures packets meant for that particular bus and routes the data correctly. The UpLink card has a large memory capacity which acts as a mirror of the status of the GR 2400 bus for more rapid communication. It also keeps logs of the number of times a relay has been operated, the time it has been ON since last reset and a log of each event (see DataLogger™ tech sheet for more information).