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Resistor Selector<br />

PCIe x4 Cable<br />

Connector<br />

Sideband<br />

PCIe REFCLK<br />

4x Data Connection<br />

1-to-2 HSTL<br />

Clock Buffer<br />

PCIe PWRON<br />

PCIe PERSTn<br />

PCIe PRSNTn<br />

PCIe WAKEn<br />

PCIe x4 Cable<br />

Connector<br />

PCIe REFCLK<br />

4x Data Connection<br />

PCIe REFCLK<br />

SMBus (no-connect)<br />

JTAG (loopback)<br />

PCIe x8 Fingers<br />

Sideband<br />

DN5000161 <strong>Block</strong> <strong>Diagram</strong><br />

PCIe Cable Adapter<br />

Downstream Side


SMBus<br />

JTAG<br />

JTAG<br />

Sideband<br />

PCIe x16 Slot<br />

8x Data Connection (no-connect)<br />

PRSNTn<br />

WAKEn<br />

PERSTn<br />

Optoisolators<br />

PCIe REFCLK<br />

+12V/+3.3V Power<br />

4x Data Connection<br />

PCIe x4 Cable<br />

Connector<br />

PERSTn<br />

4x Data Connection<br />

PCIe x4 Cable<br />

Connector<br />

WAKEn<br />

Sideband Signals<br />

Sideband<br />

PRSNTn<br />

ATX Power Header<br />

Enable Jumper<br />

DN5000161 <strong>Block</strong> <strong>Diagram</strong><br />

PCIe Cable Adapter<br />

Upstream Side

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