XD DATA DISTRIBUTION

XD data distribution is designed specifically for the challenges of large LED display systems. Tessera SX40 Processors features native XD outputs, and the Tessera XD distribution unit provides a single box solution for data distribution. 
 
10G BACKBONE

Trunk connections between SX40 and XD, or between XD units, use a 10G Ethernet-based backbone to reduce the number of home-run connections required. We use a proprietary multiplexing algorithm, built on top of standard 10G Ethernet, to ensure that tight timing constraints are met and all fixtures remain in sync. 

 
FIBRE AND COPPER COMPATIBLE 

SX40 and XD support both copper and single mode optical fibre trunk connections, and XD can be used to convert between the two media. They use ruggedised Neutrik etherCON and opticalCON DUO connectors, compatible with standard RJ45 and LC-duplex connectors respectively. 

10G-TO-1G BREAKOUT 

For maximum cabling convenience, each 10G trunk supports up to ten independent 1G connections to fixtures, each having the same pixel capacity as a 1G Tessera output, subject to the system capacity. Each is fully Gigabit Ethernet compliant, so off-the-shelf switches can also be used to further split the 1G signals.

LONG DISTANCE DISTRIBUTION AND DAISY-CHAINING 

Additional XD units can be daisy-chained together to extend the signal, allowing screens in different locations to be connected to a single 10G trunk. All ten 1G outputs on each XD can be used, as long as the combined pixel load on all ports of the same number does not exceed the pixel capacity of a single 1G link. 

MINIMUM NUMBER OF XD TRUNKS REQUIRED TO SUPPORT FULL 4K OUTPUT: 
 

Note that SX40 processors feature four XD outputs, with the additional bandiwdth available for maximum cabling convenience 

EXAMPLE SYSTEM

In this example: 

  • Trunks A and B each have just a single XD connected, with three panels connected to each of their 1G outputs. 

  • Trunk C has fixtures connected directly to the processor (copper only), so the port automatically switches to operating as a standard 1G Tessera output, without the need for an XD. 

  • Trunk D has three XDs connected in a daisy chain, perhaps because the attached fixtures are in very different locations, and it is more convenient to run just a single 10G trunk connection rather than multiple 1G connections. 

  • The capacities for ports D1-D5 are shared between the first and third XD, whereas the capacities for ports D6-D10 are used solely on the second XD. 

  • Any of the trunk connections, including the daisy chain connections on trunk D, could be up to 60m if using Cat6A (less if using Cat5E or Cat6) or several kilometres using single mode fibre. It is not necessary to use the same media throughout the system. 

 

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