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Link control cards (LCCs)
Optional disk array enclosures (DAE-AXs) do not include SPs, but use link control cards (LCCs) to support additional disk capacity. The LCCs in each DAE-AX connect to expansion ports on SPs or other LCCs with serial-attached SCSI (SAS) expansion cables to create a redundant back-end bus that can support both SATA and SAS drives. Each LCC includes a display indicating the enclosure address of the DAE-AX; the address is assigned automatically by the system. LCCs also include a service port connector. An LCC receives input from the previous SP or LCC on the bus through a primary connector (marked by a circle symbol) and can pass input to the next LCC on the bus through an expansion connector (marked by a diamond symbol).
Figure 7 shows a DAE-AX with two LCCs below the power/cooling modules.
*VVVYYWWRRRRR*
S/N: VVVYYWWRRRRR
P/N: 118031924
*118031924*
REV: AXX
*AXX*
*VVVYYWWRRRRR*
S/N: VVVYYWWRRRRR
P/N: 118031924
*118031924*
REV: AXX
*AXX*
*VVVYYWWRRRRR*
P/N: 118031924
FRU Label
REV: AXX
*AXX*
*VVVYYWWRRRRR*
P/N: 118031924
FRU Label
REV: AXX
*AXX*
# #
046-003-042_A03 046-003-042_A03
Figure 7 DAE-AX (rear view)
Expansion Primary
CL3927
8 Hardware and Operational Overview
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