ACR5325 6U VPX Carrier Card

The ACR5325 is a PMC/XMC carrier card manufactured by Acromag® and is one of a family of open architecture VPX modules available from Curtiss-Wright. The ACR5325 is intended for use with Curtiss-Wright XMC-715 graphics card, XMC-651 Ethernet Switch and other mezzanine modules.

These 6U mezzanine carrier cards provide a simple and cost-effective solution for interfacing a PMC or XMC module to a VPX computer system. The carrier card routes power and bus signals to a plug-in mezzanine module through the VPX card slot connector.

These carriers are ideal for high performance industrial, defense, scientific research, and telephony systems requiring high speed I/O expansion. The ACR5325 is available in conduction-cooled format.

Backplane Fabric Ports
The ACR5325 connects to other cards via a single 16-lane, two 8-lane or four 4-lane Gen1 or Gen2 PCIe port through the VITA 46.9 P2 connector. All PCIe ports go through a PLX PCIe switch.

OpenVPX Carrier Interface
The ACR5325 is compatible with the following VITA 65 module/slot profiles:

  • ŠŠMOD6-PER-1Q-12.3.5-1 Expansion Plane PCIe Gen1
  • ŠŠMOD6-PAY-1Q-12.3.5-2 Expansion Plane PCIe Gen2


XMC/PMC Sites
The ACR5325 is equipped with two mezzanine sites capable of supporting IEEE 1386.1 PMC/XMC modules. The XMC sites are connected to the PCIe switch through an 8-lane PCIe host interface on the P2 connector. The PMC sites are connected via dedicated 4-lane ports from the PCIe switch through PCIe to the PCI-X bridge.

The mezzanine sites' I/O complies with VITA 46.9 P64s+X12d+X8d with 64 signals of PMC I/O from Pn4 routed as 32 differential pairs. The rear I/O support for the XMC sites is with 20 differential pairs.

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  • 6U OpenVPX/VPX Carrier for 2 PMC/XMC Modules
  • PMC/XMC Interfaces
    • PMC site is PCI-X 2.0-compliant, 32/64-bit, 33/66/133 MHz
    • 3.3V PCI-X signaling on PMC-site (5V-tolerant)
    • XMC site is PCI Express® (PCIe) Gen2 and 8 lanes wide
    • 3.3V, and 5V provided to PMC/XMC site from locally generated power
    • ±12V provided to PMC/XMC site via VPX backplane
  • I/O Configuration
    • Supports front or rear panel PMC/XMC I/O
    • ŠŠSlot 1 rear I/O is compliant to VITA 46.9 P3W1-P64s+P4w1-X12d+X8dŠ
    • Slot 2 rear I/O is compliant to VITA 46.9 P5W1-P64s+P6w1-X12d+X8d
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