Intel SR6850HW4 - Manual (Page 75)

Intel® Server Platform SR6850HW4 TPS Power Distribution Board
Revision 1.0
Intel order number D23151-001
63
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.
6.1 Introduction
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.
Figure 23. Power Supply Signal Sharing
12V_SENSE_RTN
PS_ON_N
PS2
PS1
CURRENT_SHARE
12V_SENSE
INT_ALERT
PDB_FRU_SDA
PDB_FRU_SCL