nVent Schroff

Inka Krischke,

Doubling of previous data rates

© nVent Schroff

nVent Electric, provider of electrical connection and protection solutions, has developed and realized a new CPCI serial backplane.

With the support of nVent Schroff, a newly formed working group in the PICMG has revised the existing PCI Express-based CPCI Serial specification in order to meet the increasing data rates. CPCI serial backplanes currently available on the market support the current standard up to PCI Express Gen3; the extended standard now also supports PCI Express Gen4. The new backplane from nVent Schroff thus enables a doubling of the previous data rate and additionally both Ethernet protocols 10Gbase-T and 10Gbase-KR. The 3U high backplane has a maximum configuration of nine slots, one system slot and eight peripheral slots. The Airmax VS connector from Amphenol FCI previously used for CPCI Serial is replaced in this configuration by the successor connector Amphenol VS2. The VS2 connector is suitable for higher data transmission rates and ensures the required signal integrity. Thanks to an intelligent connector mix on the backplane, a slot width of 4 HP could be retained. A future standard that supports PCI Express Gen5 will require a complete switch to the slightly wider VS2 high-speed connectors, which will also increase the slot width to 5 HP. To ensure that PCI Express Gen 4 can be transmitted safely in every possible configuration, limit values have been defined for cards and backplane to ensure that the entire transmission channel meets the required values for PCI Express Gen 4. The new CPCI serial backplane can be used wherever large amounts of data need to be processed, for example for computing-intensive graphics and communication applications.

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