Cypress* Cy8C22545 Enclosure Management Controller; Figure 37. 2.5'' Backplane, Back Side - Intel P4000IP Series Technical Product Specification

Storage and Peripheral Drive Bays
There are several connectors on the backside of each backplane. The following illustration
identifies each of them:
Label
A
B
C
D
A – Multi-port Mini-SAS Cable Connectors – The backplane includes two multi-port mini-SAS
cable connectors, each providing 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 optionally installed SAS expander cards.
B and D – SMBus Cable Connectors – The backplane includes two 1x5 cable connectors used
as a management interface between the server board and the installed backplanes. In systems
configured with multiple backplanes, a short jumper cable is attached between backplanes, with
connector B used on the first board and connector D used on the second board, extending the
SMBus to each installed backplane.
C – Power Harness Connector – The backplane includes a 2x2 connector supplying power to
the backplane. Power is routed to each installed backplane by a multi-connector power cable
harness from the server board.
4.1.2

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.
Revision 1.0
Intel® Server System P4000IP and Intel® Workstation System P4000CR Family TPS
4-port Mini-SAS cable connectors
SMBus-Out cable connector for multi-backplane support
Power connector
SMBus-In cable connector – From Server board or other
backplane

Figure 37. 2.5'' Backplane, Back Side

Intel order number G38159-001
Description
83