User manual

One Stop Systems OSS-PCIe-HIB25-x4-H/T
Rev. A
26 GND Ground PERn2
27 PETp3 GND Ground
28 PETn3
Transmitter differential pair,
Lane 3
GND Ground
29 GND Ground PERp3
30 RSVD Reserved PERn3
Receiver differential pair, Lane 3
31 PRSNT2# Hot-Plug presence detect GND Ground
32 GND Ground RSVD Reserved
Notes:
1 Optional signals that are not implemented are to be left as no connects on the board side connector.
2 Reserved signals must be left as no connects on the board side connector.
3 Although support of CWAKE# is optional from the board side connector perspective, an allocated wire is mandated for the cable
assembly.
4 Board side pin-out on both sides of the Link is identical. The cable assembly incorporates a null modem for the PCIe transmit and
receive pairs.
PCI Express x4 Cable Connector Pin out
Row A, Pin 1
Row B, Pin 19
Table 1: Pin-out for the PCIe x4 Card Edge Connector on the Host Cable Adapter
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