5.2.3.1PCI Express Switch

The Netra CP3260 uses the PLX PCI switch that encompasses a 32-lane PCI Express switch with six configurable ports (x1, x2, x4, x8, x16).

5.2.3.2Base Interface

The Netra CP3260 provides dual redundant 10/100/1000BASE-T Ethernet links to connect to the midplane Base interface channels. A x4 lane port from the PCI Express switch connects to a dual gigabit controller.

5.2.3.3Fabric Interface

The dual XAUI ports from UltraSPARC T2 processor are multiplexed between the midplane Zone 2 connector (that is, the fabric interface). The XAUI interface operate at 10-Gbps or 1-Gbps.

5.2.3.4Common ARTM

The Netra CP3260 provides a Zone 3 interface to a common ARTM which essentially appears as an AMC card. The common ARTM supports the AMC.1 and AMC.2 compliant interfaces.

An X8 PCI Express channel is routed to the RTM slot.

The ARTM interface provides an Ethernet SERDES interface for AMC.2 compliant functionality. These ports are sourced from the dual Gigabit Ethernet controller that connects to the PCI Express switch using a x4 lane PCI-E channels. (See Section 5.2.4, “Other ARTM Interfaces” on page 5-11for other non-AMC interfaces routed to the ARTM.)

ARTM Power and Management

The common ARTMs require two voltages:

3.3V STBY for management (current limited to 100 mA)

12V power for payload on ARTM (Maximum 25 Watts).

Power management is handled by the ATCA shelf manager’s Intelligent Platform Management Controller (IPMC).

5-10Netra CP3260 Blade Server User’s Guide • April 2009

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Sun Microsystems CP3260 manual PCI Express Switch, Base Interface, Fabric Interface, Common Artm