I/O Boards - VME Bus

FT-LAN-VME Switch Module

The FT-LAN-VME is a switch module that provides high speed connections through a combination of PMC and VME interfaces. This board can be used to build gigabit-per-second System Area Networks (SAN), allowing several computers to work as a system cluster. Individual computers containing the SAN/PMC interface can be linked using the PMC SAN Switch Module.

This 6U-VME-form-factor Myrinet-SAN switch is intended for clustering VME single-board computers that have PMC Myrinet-SAN/PCI interfaces.

The two large chips (Myricom XBar8 1.1 chips) are 8-port Myrinet-SAN switches. The A links of each of the 5 front-panel SAN connectors are connected as shown below to ports 0 – 4 of of the A switch, the B links to the corresponding ports of the B switch, and the two switches are bridged on ports 6 and 7.

Note: The remaining SAN ports 5 of switches A and B are brought to a pair of links through the provisional VME P0 connector. This Myrinet-SAN-through-P0 scheme allows connection to backplane-overlay Myrinet switches.

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  • Technical Specifications
  • Typical SAN/LAN Configuration

 

Technical Specifications

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Block Diagram

 

Internal switches Two 8-input, 8-output, full-crossbar, Myrinet-SAN switches with each channel operating at 1.28 GB/s for a total bisection data rate of 10.24 GB/s for each switch.
Myrinet-SAN ports (10) 1.28+1.28 GB/s data rate on each of the A and B links of five Myrinet-SAN connectors. These links may be split onto separate cables using the M2M-Y splitter.
Physical Characteristics 6U VME board
Power 6 Watts typical from the VME 5V pins


Typical SAN/LAN Configuration

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