Technical Product Specification

Intel® Server System SR2625UR TPS Peripheral and Hard Drive Subsystem
Revision 1.8 Intel order number E46130-010
61
6.4 Midplane Options
The midplane is the interconnection between the server board and both the hot-swap
backplane and control panel. It is also used to determine which hard drive technology is to be
supported. Two different midplane options are available for this platform: 1) a passive midplane
capable of supporting SATA ports from the server board or SAS using ports from an add-in
card; 2) an active SAS/SAS RAID midplane that contains an on-board SAS controller and
requires
no cabling.
This section describes the hard drive interface support of each of the midplane boards.
6.4.1 Passive Midplane
The passive midplane is used as an interconnect, routing drive control signals from either the
on-board SATA ports of the server board or SAS/SATA ports from an add-in card to the hot-
swap backplane. The hard drive controller signals are cabled to the midplane, which then
routes the signals to the hot-swap backplane through two edge connectors that plug directly
into it.
A.
Power Connector
F.
Fan 4 Connector
B.
Fan 6 Connector
G.
Fan 3 Connector
C.
Fan 5 Connector
H.
Fan 1 Connector
D.
SAS/SATA Connectors
I.
Fan 2 Connector
E.
Bridge Board Connector
J.
Backplane Connector
Figure 33. Passive Midplane Board