Intel® Storage Server System JBOD 2000 Family Hardware Guide System Storage and Peripheral Drive Bays Overview
Revision 1.42
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On the back side of each backplane are several connectors. The following illustration identifies
each.
Figure 21. Components on 3.5” HSBP
Label
Description
A
4-port mini-SAS connectors
B
Power connectors
C
SMBus connector (not used)
A
– 4-port Mini-SAS Connectors – The backplane includes two or three multi-port mini-SAS
cable connectors, each providing SGPIO and I/O signals for four SAS/SATA hard drives on the
backplane. Cables can be routed from matching connectors on the server board, add-in
SAS/SATA RAID cards, or an optionally installed SAS expander card. Each mini-SAS connector
includes a silk-screen identifying which drives the connector supports: Drives 0-3, Drives 4-7,
and Drives 8-11.
B
– Power Harness Connector – The backplane includes a 2x2 connector supplying power to
the backplane. Power is routed to the backplane via a power cable harness from the server
board.
3.2.2
Cypress* CY8C22545 Enclosure Management Controller
The backplanes support enclosure management using a Cypress* CY8C22545 Programmable
System-on-Chip (PSoC*) device. The CY8C22545 drives the hard drive activity/fault LED, hard
drive present signal, and controls hard drive power-up during system power-on.