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Power Ground
PCI Express Transmit Pair 33+
PCI Express Transmit Pair 33-
Power Ground
Power Ground
PCI Express Transmit Pair 34+
PCI Express Transmit Pair 34-
Power Ground
Power Ground
PCI Express Transmit Pair 35+
PCI Express Transmit Pair 35-
Power Ground
Not Connected
Hot Plug presence detect. Input Signal from add in
card used to enable the reference clock of this slot.
Active low signal, +3.3V_RUN electrical level with a
10k
Power Ground
PCI Express Transmit Pair 36+
PCI Express Transmit Pair 36-
Power Ground
Power Ground
PCI Express Transmit Pair 37+
PCI Express Transmit Pair 37-
Power Ground
Power Ground
PCI Express Transmit Pair 38+
PCI Express Transmit Pair 38-
Power Ground
Power Ground
PCI Express Transmit Pair 39+
CCHPC-C78-C
CCHPC-C78-C - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.O. - Reviewed by E.S. Copyright © 2023 SECO S.p.A.
GND
B18
A18
PCIE_TX33+
B19
A19
PCIE_TX33-
B20
A20
GND
B21
A21
GND
B22
A22
PCIE_TX34+
B23
A23
PCIE_TX34-
B24
A24
GND
B25
A25
GND
B26
A26
PCIE_TX35+
B27
A27
PCIE_TX35-
B28
A28
GND
B29
A29
RSVD
B30
A30
PRSNT2#
B31
A31
GND
B32
A32
PCIE_TX36+
B33
A33
PCIE_TX36-
B34
A34
GND
B35
A35
GND
B36
A36
PCIE_TX37+
B37
A37
PCIE_TX37-
B38
A38
GND
B39
A39
GND
B40
A40
PCIE_TX38+
B41
A41
PCIE_TX38-
B42
A42
GND
B43
A43
GND
B44
A44
PCIE_TX39+
B45
A45
GND
Power Ground
RSVD
Not connected
GND
Power Ground
PCIE_RX33+
PCI Express Receive Pair 33+
PCIE_RX33-
PCI Express Receive Pair 33-
GND
Power Ground
GND
Power Ground
PCIE_RX34+
PCI Express Receive Pair 34+
PCIE_RX34-
PCI Express Receive Pair 34-
GND
Power Ground
GND
Power Ground
PCIE_RX35+
PCI Express Receive Pair 35+
PCIE_RX35-
PCI Express Receive Pair 35-
GND
Power Ground
RSVD
Not connected
RSVD
Not connected
GND
Power Ground
PCIE_RX36+
PCI Express Receive Pair 36+
PCIE_RX36-
PCI Express Receive Pair 36-
GND
Power Ground
GND
Power Ground
PCIE_RX37+
PCI Express Receive Pair 37+
PCIE_RX37-
PCI Express Receive Pair 37-
GND
Power Ground
GND
Power Ground
PCIE_RX38+
PCI Express Receive Pair 38+
PCIE_RX38-
PCI Express Receive Pair 38-
GND
Power Ground
51
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