Pci-Express Interfaces (X1) - Beckhoff CB1064 Series Manual

Internal Connectors

3.4.6 PCI-express Interfaces (x1)

The CB1064 board has two slots for PCIe-x1 expansion cards.
Notice
Pinout PCI-express-x1 connector:
Description
hot plug detect 1
12 volt supply
12 volt supply
ground
reserved
reserved
reserved
reserved
3.3 volt supply
3.3 volt supply
PCIe reset
ground
reference clock +
reference clock -
ground
receive lane 0 +
receive lane 0 -
ground
Beckhoff New Automation Technology CB1064-xxxx
Please note that some signals in the following table are different from one PCIe
slot to the other. This applies to the clock signals (A13, A14), the receive signals
(A16, A17), and the transmit signals (B14, B15).
Name
PRSNT1#
12V
12V
GND
N/C
N/C
N/C
N/C
3.3V
3.3V
PERST#
GND
REFCLK
REFCLK#
GND
PER0
PER0#
GND
Pin Name
A1 B1 12V
A2 B2 12V
A3 B3 N/C
A4 B4 GND
A5 B5 SMBCLK
A6 B6 SMBDAT
A7 B7 GND
A8 B8 3.3V
A9 B9 N/C
A10 B10 S3.3V
A11 B11 PEWAKE#
A12 B12 N/C
A13 B13 GND
A14 B14 PET0
A15 B15 PET0#
A16 B16 GND
A17 B17 PRSNT2#
A18 B18 GND
Chapter: Connectors
Description
12 volt supply
12 volt supply
reserved
ground
SMBus clock PCIe
SMBus data PCIe
ground
3.3 volt supply
reserved
3.3V standby-supply
link reactivation
reserved
ground
transmit lane 0 +
transmit lane 0 -
ground
hot plug detect 2
ground
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