2013年12月9日星期一

MiniSAS Cables be sure to restrain the cable

The High Routability Internal MiniSAS Cables Assemblies are not just for tightly packaged systems. The high performance SL8800 Series Cable used in the construction of these assemblies also provides excellent transmission properties, allowing your signals to go the distance. The excellent performance of the cable may allow an even longer cable to be used. This performance benefit will stretch your loss budget, allowing you to use extra length to route the cable through a more convenient location, out of the way of airflow, or around difficult obstructions.High Routability MiniSAS Cables Assemblies for 8F36 and 8F68 meet SAS  performance requirements, while HD MiniSAS, Series 8U meets SAS 3.0 requirements. Whether or not you need the routability of these cables, they have the performance to help keep your system running at top speed. If you need a little extra “edge” in your MiniSAS 8088 environment or you have a challenging packaging situation, look at the 3M High Routability MiniSAS Cables Assemblies. 3M has tested these assemblies in folded configurations, and each fold impacts the impedance at that location by approximately only 1 ohm, well within the tightest impedance specifications (and note that the impedance at each fold is not cumulative, but is only a variation at that point). Similarly, S-parameter performance metrics are not degraded, and the cable assemblies still pass SAS 2.1 and SAS 3.0 criteria, even with multiple folds. Should your design require any folding, be sure to restrain the cable with the appropriate cable clamps to prevent repeated flexure at the folds.

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