Use your PMC with a new PC. PCs have PCI Express connectors in larger quantities than PCI slots. The PCIeBPMCX1 ( PCIe Bridge PMC 1 slot) adapter / carrier converter card provides the ability to install one PMC card into a standard PCIe (Express) 4 lane slot. Suitable for PCI or PCI-X operation with the PMC; 32 bit or 64 bit data and PCI (25, 33, 50, 66) or PCI-X (50,66,100,133) MHz. clock. Auto selected or switch programmable speeds. The bridge can operate with 1, 2, 3 or 4 lanes active, and can be installed into slots with more than 4 lanes if desired. Over 5000 shipped.
The PMC user IO connector Pn4 is available on a SCSI II connector. The Pn4 "user IO" is routed differentially with matched length and impedance control to the SCSI connector. The PMC front panel connector is mounted though the PCIe mounting bracket.
For superior performance, PCIeBPMCX1 has dual cooling cutouts for increased airflow to the PMC. If your application requires a fan you can order
PCIeBPMCX1-FAN to have a fan(s) mounted to your PCIBPMCX1. The FAN positions are numbered 1-2 with 1 closest to the PCIe Bezel [left edge in the picture above]. Both fan positions can be mounted. Both positions are in "legal" PMC locations and can have a "Zero Slot Fan"™ mounted where the fan does not take any extra slots. Higher volume fans can be rear mounted and potentially require an extra slot.
The PCIe bus is interconnected to the PMC via a bridge. The bridge can operate with 1, 2, 3 or 4 lanes in operation. For maximum performance 4 lanes are recommended. The Secondary side of the bridge can operate with 32 or 64 bit data and PCI or PCI-X programming. The design uses a DIPSWITCH to allow selection of auto or force on the clocks. With Auto the PMC PCIXCAP and M66En signals are used to determine the clock speed. With Force, the DIPSWITCH is used to select the clock rate. The buffering within the bridge will take care of the rate and data matching. The local side can also operate at 133, 100, 66 or 33 MHz depending on the PMCs installed. The PCI-X controls are also selectable via dipswitch.
The voltage definitions are buffered between the PCIe and PMC buses. PCIe is fixed LVDS levels, and the PMC VIO is set to 3.3V.
The bridge is located near the PCIe "gold fingers" and routed with PCIe specification compliant traces for impedance and length to insure maximum performance from your Express system.
The -12V, 5V, and 3.3V for the PMC are regulated on board. The power supply designs utilize switching regulators controlling a MOSFET to convert 12V. An LC filter insures clean power at the PMC. The bridge uses a small amount of 3.3 plus 1.2V which are supplied by the PCIe 3.3V supply. The PCIe gold fingers are rated for 1.1A each, and a total of 5.5A on the +12V rail. 55W are available to the card after power conversion. Please note this is the combined power requirement across the +12, -12, +5, and 3.3V power used by the PMC. In most cases 55W is sufficient. PCIeBPMCX1 has a cable connector to allow additional 12V power to be added to the card. The two supplies are DIODE coupled. In some cases the 12V supply on the backplane will not be adequately routed by the PC causing voltage sag on the 12V. If this occurs use the cable connector to compensate.
The power supplies include the bulk capacitance to properly bipass the FETs and post conversion voltage rails. In addition the PMC connectors are bipassed with a .1 uF capacitor at each power pin. The power supplies are checked with voltage monitor circuits. The LEDs are not illuminated unless the voltage is within the defined range.
The individual pins on the JN4 (PN4) connectors for each slot are accessible by a 68 pin SCSI connector. We recommend using our SCSI cable and the
HDEterm68 breakout block with the SCSI connector.
The PMC JTAG connections are routed to a header. The header is configured to for discrete connections. Please add -JTAG if you want the header installed on your PCIeBPMCX1.