Matrox Supersight Installation And Hardware Reference page 13

Switched fabric
backplanes
Matrox Supersight Solo - 7 + 6 PCIe connector configuration
x8
Mux/Demux
x16 x16 x8 x0/x8 x16/x8
1 2
Legend
SHB connector
Note that this PCIe connector configuration is only available on the 13-connector version.
Paired PCIe connectors are connectors where either: one works at x16, or both work at x8.
As a switched fabric backplane, the Matrox Supersight unit uses a series of PCIe
switches to control the connections between your PCIe boards and the Matrox
Supersight SHB-5520 board(s). A switched fabric backplane allows traffic from
one PCIe connector to pass through to the next available PCIe switch without
being bottlenecked, while providing maximum bandwidth to the SHB.
Some PCIe connectors on the Matrox Supersight backplane are paired, allowing
one of two PCIe connectors to communicate at x16 while the other is
non-functional or both PCIe connectors of the pair to communicate at x8. These
PCIe connector pairs have their PCIe lanes routed through a series of
multiplexers/demultiplexers (muxes/demuxes). These muxes/demuxes are
initialized upon start-up, based on the presence of a board in the PCIe connector
that can be x8 or non-functional (x0).
Matrox Supersight Solo (13-connector version) uses two x16 lanes for
communication with the SHB, while Matrox Supersight e2 and the 8-connector
version of Matrox Supersight Solo uses only one.
PCIe 2.0 switch
x16 x16
Mux/Demux
x0/x8 x16/x8
3 4 4 5 5
PCIe connector Paired connectors
x16
Mux/Demux
Mux/Demux
x0/x8 x16/x8
x0/x8 x16/x8
6 7 8
PCIe 2.0 switch
x16 x16
Mux/Demux
x0/x8 x16/x8
9 10 11
Backplane 13
x16
Mux/Demux
x0/x8 x16/x8
13 14