iii

SAS2-826EL Series Backplane User's Guide
Table of Contents
Contacting Supermicro .......................................................................................iv
Returning Merchandise for Service.....................................................................v

Chapter 1 Safety Guidelines ....................................................................1-1

1-1 ESD Safety Guidelines ................................................................................... 1-1
1-2 General Safety Guidelines ..............................................................................1-1
1-3 An Important Note to Users ............................................................................ 1-2
1-4 Introduction to the SAS2-826EL Backplane.................................................... 1-2
1-5 Overview of the SAS2-826EL1/EL2 Backplanes ............................................ 1-2

Chapter 2 Connectors, Jumper and LEDs ..............................................2-1

2-1 Front Connectors ............................................................................................2-1
Front Connectors ............................................................................................2-1
2-2 FrontConnectorandPinDenitions ...............................................................2-2
2-3 Front Jumper Locations and Settings .............................................................2-3
Explanation of Jumpers .................................................................................. 2-3
2-4 Front LED Indicators .......................................................................................2-5
2-5 Rear Connectors and LED Indicators .............................................................2-6

Chapter 3 Dual Port and Cascading Congurations ............................3-1

3-1 Single and Dual Port Expanders ...................................................................3-1
Single Ports .....................................................................................................3-1
Dual Ports .......................................................................................................3-1
3-2 Failover ............................................................................................................3-2
3-3 Failover with RAID Cards and Multiple HBAs ................................................3-3
3-4 Cables and Chassis Power Card ...................................................................3-4
Chassis Power Card .......................................................................................3-4
Connecting an Internal Host Bus Adapter to the Backplane .........................3-5
Supported Internal HBA to Backplane Cables ................................................3-6
Connecting an External Host Bus Adapter to the Backplane ........................3-7
Supported External HBA to Backplane Cable ................................................ 3-8
Connecting Multiple Backplanes in a Single Channel Environment ...............3-9
SingleHBAConguration ...............................................................................3-9
SingleHBACongurationCables .................................................................3-10
Connecting Multiple Backplanes in a Dual Channel Environment ................3-11
DualHBACongurationCables ....................................................................3-12
3-5 SupportedCascadingConguration ............................................................3-13
ServerSystemwithDualSAS HBAandCascadingConguration ..............3-14