Installing components 48
Connection Port number Connects to interconnect
bay/port
Comments
Mezzanine slot 1—1x,
2x, or 4x cards
Server A: Mezz port 2
Server B: Mezz port 1
Server B: Mezz port 2
4/Port N
3/Port N+8
4/Port N+8
Two single-wide modules
or one double-wide
interconnect module
Only two ports will be
connected.
Four port cards will only
connect the first two
ports.
Bay-to-bay crosslinks
For bay-to-bay communication, the enclosure midplane provides four-trace SerDes signals between adjacent
bays.
Device bay crosslinks
Device bay crosslinks are wired between adjacent horizontal device bay pairs.
For half-height blades, these signals are used to connect a four-lane PCIe module to a partner blade such as
a tape blade or a PCI expansion blade. For full-height blades, these signals are used to connect a PCIe
module to a partner blade in the lower adjacent bay and require a PCIe pass-through mezzanine card
installed in mezzanine connector 3. Onboard Administrator disables the device bay crosslinks in instances
where they cannot be used, such as when two blades reside in adjacent device bays.