Beckhoff CB1051, Manual

Page: 41 / 82

Internal Connectors Chapter: Connectors
Beckhoff New Automation Technology CB1051 page 41
3.4.9 PCI-express interface (x16)
One slot for PCI-express-x16-cards makes the expansion options on the CB1051 complete. You can use
this slot either for PCIe-x16 graphic adapters or for ADD2 cards (SDVO). PCIe-x4 devices will not work
with this slot.
N
OTE
SDVO signals are treated below in a table of their own.
Pinout PCI-express-x16 connector:
Description Name Pin Name Description
hot plug detect 1 PRSNT1# A1 B1 12V 12 volt supply
12 volt supply 12V A2 B2 12V 12 volt supply
12 volt supply 12V A3 B3 N/C reserved
ground GND A4 B4 GND ground
reserved N/C A5 B5 SMBCLK SMBus clock PCIe
reserved N/C A6 B6 SMBDAT SMBus data PCIe
reserved N/C A7 B7 GND ground
reserved N/C A8 B8 3.3V 3.3 volt supply
3.3 volt supply 3.3V A9 B9 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
reserved N/C A19 B19 PET1 transmit lane 1 +
ground GND A20 B20 PET1# transmit lane 1 -
receive lane 1 + PER1 A21 B21 GND ground
receive lane 1 - PER1# A22 B22 GND ground
ground GND A23 B23 PET2 transmit lane 2 +
ground GND A24 B24 PET2# transmit lane 2 -