OSS OSS-PCIe-HIB25-x4, Installation Manual

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One Stop Systems
OSS-PCIe-HIB25x4 | 15
1.12 x4 Cable Signal Descriptions
PIN
# Signal Description
A1 GND Ground reference for PCI Express transmitter Lanes
A2 PETp0 Differential PCI Express transmitter Lane 0 5
A3 PETn0 Differential PCI Express transmitter Lane 0 5
A4 GND GND Ground reference for PCI Express transmitter Lanes
A5 PETp1 Differential PCI Express transmitter Lane 1 5
A6 PETn1 Differential PCI Express transmitter Lane 1
A7 GND Ground reference for PCI Express transmitter Lanes
A8 PETp2 Differential PCI Express transmitter Lane 2
A9 PETn2 Differential PCI Express transmitter Lane 2
A10 GND Ground reference for PCI Express transmitter Lanes
A11 PETp3 Differential PCI Express transmitter Lane 3
A12 PETn3 Differential PCI Express transmitter Lane 3
A13 GND Ground reference for PCI Express transmitter Lanes
A14 Differential 100MHz cable reference clock
A15 CREFCLK Differential 100MHz cable reference clock
A16 GND GND Ground reference for cable reference clock
A17 SB_RTN Signal return for single ended sideband signals
A18 CPRSNT# Used for detection of whether a cable is installed and the downstream subsystem is powered
A19 CPWRON Turns power on / off to slave-type downstream subsystems
B1 GND Ground reference for PCI Express receiver Lanes
B2 PERp0 Differential PCI Express receiver Lane 0
B3 PERn0 Differential PCI Express receiver Lane 0
B4 GND Ground reference for PCI Express receiver Lanes
B5 PERp1 Differential PCI Express receiver Lane 1
B6 PERn1 Differential PCI Express receiver Lane 1
B7 GND Ground reference for PCI Express receiver Lanes
B8 PERp2 Differential PCI Express receiver Lane 2
B9 PERn2 Differential PCI Express receiver Lane 2
B10 GND Ground reference for PCI Express receiver Lanes
B11 PERp3 Differential PCI Express receiver Lane 3
B12 PERn3 Differential PCI Express receiver Lane 3
B13 GND Ground reference for PCI Express receiver Lanes
B14 PWR +3.3VCable power
B15 PWR +3.3VCable Power
B16 PWR RTN Cable power return
B17 PWR RTN Cable power return
B18 CWAKE# Power management signal for wakeup events (optional)
B19 CPERST# Cable PERST#
PETp(x) PCI Express Transmit Positive signal of (x) pair.
PETn(x) PCI Express Transmit Negative signal of (x) pair.
PERp(x) PCI Express Receive Positive signal of (x) pair.
PERn(x) PCI Express Receive Negative signal of (x) pair.
/- Cable REFerence CLocK: Provides a reference clock from the host system to the remote system.
SB_RTN Return path for single ended signals from remote systems.
CPRSNT# Cable Present: Indicates the presence of a device beyond the cable.
PWR
Power: Provides local power for in-cable redriver circuits. Only needed on long cables (Power does not go across the
cable.)
PWR_RTN
Po
Provides local power return path for PWR pins.
CWAKE# Cable WAKE
CPERST# Cable PCI Express Reset