ATCA‐S201Overview
6806800H62B ATCA‐S201InstallationandUseGuide9
Figure 1, ATCA-S201 functional block diagram
1.3.1 AMC card connections
The four AMC slots have identical features, and each accommodates a half width,
mid height module. The ATCA-S201 accepts AMC cards conforming to either PCI
express signaling (AMC.1) or Storage signaling options (AMC.3). AMC feature
support details:
PCI-Express x4 on AMC ports 4-7
PCI reference clock on FCLKA
3Gb SAS/SATA on AMC port2
3Gb SAS/SATA on AMC port3
SAS hot swap support
Face plate height x width, 18.96 x 73.8mm
IPMB-L
72W max each slot (120W shared with all AMC slots)
1.3.2 DDR2 SODIMM
A 72 bit SODIMM socket is populated with a DDR2 memory module, and operated
at 533MHz. The ATCA applies ECC (error correction code) algorithms to this
memory to ensure data integrity of both the storage and program code stored in it.
Single bit errors are automatically detected and corrected by these ECC algorithms.
1.3.3 Zone 1, power backplane connections
The Zone-1 connector brings 48V DC power into the ATCA main board. This power
is regulated and split into several lower voltages by discrete components and a pair
of power modules that are affixed to the ATCA carrier. Together, these devices
convert 48V source and distributes power amongst the ATCA local onboard needs,
AMC slots and advanced rear transition module (RTM).
1.3.4 Zone 2, backplane connections
This connector carries the Ethernet links to the chassis backplane. All Ethernet ports
on this connector are full duplex and all ports support access to advertised storage
resources. This connector includes the following Gigabit Ethernet ports:
2 Fabric channels, redundant 10GbE XAUI connections
2 Base channels, redundant 1GbE base connections
1.3.5 Zone 3, Advanced RTM connector
This connector conforms to the advanced rear transition module (RTM) 3-row
connector standard. The following functions are routed to this connector:
8x PCI-express
4x SAS/SATA target connections
4x SAS/SATA initiator connections
I
2
C support
