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Internal Connectors Chapter: Connectors

Beckhoff New Automation Technology CB1061 page 43

3.4.6 PCI-express Interfaces (x1)

The CB1061 board has two slots for PCIe-x1 expansion cards.

NOTE

When the motherboard PCIe-x4 slot (page 44) is occupied with a x4 device, then x1 slot 2 is de-activated.

NOTE

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).

Pinout PCI-express-x1 connector:

Description

Name

Description

hot plug detect 1

PRSNT1#

12V

12 volt supply

12V

12 volt supply

12V

N/C

reserved

ground

GND

ground

reserved

N/C

SMBCLK

SMBus clock PCIe

reserved

N/C

SMBDAT

SMBus data PCIe

reserved

N/C

GND

ground

reserved

N/C

3.3V

3.3 volt supply

3.3V

N/C

reserved

3.3 volt supply

3.3V

A10

B10

S3.3V

3.3V standby-supply

PCIe reset

PERST#

A11

B11

PEWAKE#

link reactivation

ground

GND

A12

B12

N/C

reserved

reference clock +

REFCLK

A13

B13

GND

ground

reference clock -

REFCLK#

A14

B14

PET0

transmit lane 0 +

ground

GND

A15

B15

PET0#

transmit lane 0 -

receive lane 0 +

PER0

A16

B16

GND

ground

receive lane 0 -

PER0#

A17

B17

PRSNT2#

hot plug detect 2

ground

GND

A18

B18

GND

ground

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 123 124

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