
Table of Contents
Preface .............................................................................................................................................. 2
1
Safety...................................................................................................................................... 5
1.1
Safety Symbols used in this document............................................................................. 5
1.2
General Safety Precautions ............................................................................................. 5
1.3
Reference and Architecture Specifications....................................................................... 5
1.4
Product Definition............................................................................................................. 6
1.5
Terms and Acronyms....................................................................................................... 6
2 Hardware Platform ................................................................................................................. 7
2.1
Shelf Front and Rear View............................................................................................... 7
3 ATCA Backplane .................................................................................................................... 9
3.1
Logical to Physical Slot Mapping...................................................................................... 9
3.2
Base Interface.................................................................................................................. 9
3.3
Fabric Interface................................................................................................................ 9
3.4
Synchronization Clocks.................................................................................................... 9
3.5
Update Channel Interface ...............................................................................................10
3.6
Intelligent Platform Management Bus (IPMB)..................................................................11
3.7
Shelf SEEPROM.............................................................................................................11
3.8
Logic Ground..................................................................................................................12
4 Air Filter.................................................................................................................................13
4.1
Introduction......................................................................................................................13
5 Shelf Ground Connection.....................................................................................................14
5.1
Specification for the Shelf Ground Connection Cable......................................................14
6 Fan Trays...............................................................................................................................15
6.1
Introduction.....................................................................................................................15
6.2
Fan Control Model ..........................................................................................................15
6.2.1 Shelf Manager Mode...........................................................................................15
6.2.2 Autonomous Mode..............................................................................................16
6.3
Fan Tray Signals.............................................................................................................17
6.4
Fan Tray Indicators.........................................................................................................17
6.5
Fan Tray Connector Pin Assignment...............................................................................18
6.6
Fan Tray IPMB Addresses..............................................................................................19
7 Power.....................................................................................................................................20
7.1
Introduction.....................................................................................................................20
7.2
Power Distribution...........................................................................................................21
7.3
AC Power Supply Units (PSUs) ......................................................................................22
7.4
Power Branches..............................................................................................................23
8 Thermal..................................................................................................................................24
8.1
System Airflow Path........................................................................................................24