Intel® Server Platform SR6850HW4 TPS

SCSI Backplane Board

7.3.1Power from the Power Distribution Board

The SCSI Backplane Board receives only +12V from the Power Distribution Board through a 12- pin connector. These pins are tied together and Table 43 provides a summary of the power connector pins.

Table 43. Power Interface Signals

Signal

 

Type

Driver

Name and Description

+12V

I

 

PWR

+12 Volt supply from Power Distribution Board

 

 

 

 

 

7.3.2 Front Panel Power Connector

Table 44 is a summary of the Server Platform SR6850HW4 Front Panel I/O Board power connector pins.

Table 44. Front Panel I/O Board Power Interface Signals

Signal

Type

Driver

 

Name and Description

+3.3Vstby

I

PWR

+3.3

Volt standby supply from Front Panel I/O Board

+3.3V

O

PWR

+3.3

Volt supply to Front Panel I/O Board

 

 

 

 

+5V

O

PWR

+5 Volt supply to Front Panel I/O Board

 

 

 

 

 

7.3.3 Front Panel I/O Board Ribbon Cable Connector

The 30-pin Server Platform SR6850HW4 Front Panel I/O Board ribbon cable connector carries signals to and from the SCSI Backplane Board. Table 45 provides a description of the Front Panel I/O Board ribbon cable connector. See Chapter 4 for pinouts.

Table 45. Front Panel I/O Board Ribbon Connector Signal Description

Signal

Typ

Driver

Name and Description

 

e

 

 

FP_ID_BTN_N

I

Switch

ID button, ground when pressed

 

 

 

 

FP_PWR_BTN_N

I

Switch

Power button, ground when pressed

 

 

 

 

FP_RST_BTN_N

I

Switch

Reset button, ground when pressed

 

 

 

 

SYS_STATUS_GRN_

O

 

Drives the front control panel system status green LED under

LED_R_N

 

 

Mainboard control

 

 

 

 

SYS_STATUS_AMB_

O

 

Drives the front control panel system status amber LED under

LED_R_N

 

 

Mainboard control

FP_ID_LED_R_N

O

 

Drives the front control panel ID blue LED under Mainboard

 

 

 

control

 

 

 

 

FP_PWR_LED_R_N

O

 

Drives the front control panel power green LED under Mainboard

 

 

 

control

 

 

 

 

Revision 1.0

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