Intel SR6850HW4 - Manual (Page 6)

Table of Contents Intel® Server Platform SR6850HW4 TPS
Revision 1.0
Intel order number D23151-001
vi
7.2.1 SCSI Buses ........................................................................................................... 73
7.2.2 SCSI Drive Power Control ..................................................................................... 73
7.2.3 SCSI Enclosure Management ............................................................................... 75
7.2.4 Server Management Interface ............................................................................... 76
7.2.5 Resets.................................................................................................................... 77
7.2.6 Connector Interlocks.............................................................................................. 77
7.2.7 Clock Generation ................................................................................................... 77
7.2.8 Programmed Devices ............................................................................................ 78
7.3 Signal Descriptions ................................................................................................ 78
7.3.1 Power from the Power Distribution Board.............................................................. 79
7.3.2 Front Panel Power Connector ............................................................................... 79
7.3.3 Front Panel I/O Board Ribbon Cable Connector ................................................... 79
7.3.4 LVD SCSI 68-pin Connector.................................................................................. 80
7.3.5 SCA2 80-pin Drive Connectors.............................................................................. 81
7.3.6 Fans....................................................................................................................... 82
7.3.7 Internal Logic Signals ............................................................................................ 82
7.4 Electrical, Environmental, and Mechanical Specifications..................................... 83
7.4.1 Electrical Specifications ......................................................................................... 83
8. Front Panel I/O and Control Boards ................................................................................. 85
8.1 Introduction ............................................................................................................ 85
8.1.1 Block Diagram ....................................................................................................... 85
8.1.2 Architectural Overview........................................................................................... 86
8.1.3 Component Location.............................................................................................. 87
8.2 Functional Architecture .......................................................................................... 88
8.2.1 VGA ....................................................................................................................... 88
8.2.2 USB ....................................................................................................................... 88
8.2.3 NMI Button............................................................................................................. 88
8.3 Signal Descriptions ................................................................................................ 89
8.3.1 USB Connector...................................................................................................... 89
8.3.2 Front Panel VGA Connector .................................................................................. 90
8.4 Electrical, Environmental, and Mechanical Specifications..................................... 90
8.4.1 Electrical Specifications ......................................................................................... 90
8.4.2 Connector Specifications ....................................................................................... 91
8.4.3 Cooling Requirements ........................................................................................... 91
8.5 Front Panel Control Module................................................................................... 92