Intel SR6850HW4 6.Power Distribution Board, 6.1Introduction, Section 6.1: Introduction, Section 0: Signal Descriptions and Pinouts

Intel® Server Platform SR6850HW4 TPS Power Distribution Board

6.Power Distribution Board

This chapter describes the Server Platform SR4850HW4/SR6850HW4 Power Distribution Board and is organized as follows:

Section 6.1: Introduction

An overview of the Server Platform SR4850HW4/SR6850HW4 Power

Distribution Board and board layout.

Section 0: Signal Descriptions and Pinouts

Summarizes the Server Platform SR4850HW4/SR6850HW4 Power Distribution Board internal signals and connector signals, and the connector signal pin names and the signal descriptions.

6.1Introduction

The Server Platform SR4850HW4/SR6850HW4 Power Distribution Board provides docking connectors for the hot-swap power supply modules. It distributes power to the Server Platform SR4850HW4 SCSI Backplane Board and Server Board Set SE8500HW4 Mainboard as well as power consumption information to the Server Board Set SE8500HW4 Mainboard via a group of comparators. The board contains EEPROM FRU information storage but has no logic on it; it is a pass-through board. The signals shared between the two power supplies are shown in the diagram below.

	INT_ALERT
	12V_SENSE
	12V_SENSE_RTN
PS2	PS_ON_N	PS1
	CURRENT_SHARE
	PDB_FRU_SDA
	PDB_FRU_SCL

Figure 23. Power Supply Signal Sharing

Revision 1.0	63
	Intel order number D23151-001