Technical Product Specification

Intel® Server System SR1690WB TPS 2BPower Sub-System
Revision 1.7 17
Intel order number: E72797-009
3.5.4 Output Short Circuit Protection
A short circuit placed to ground shall cause no damage and the power supply shall shutdown.
A short circuit between each output shall cause no damage to the power supply.
3.6 Maximum power supply dissipation test conditions
Maximum power supply dissipation test conditions at 115/230 VAC.
Table 16. Maximum Power Supply Dissipation Test Conditions
Condition 1 Condition 2 Condition 3
5 Vsb off
5 Vsb on, 0A
5 Vsb on, 0A
12 V main off
12 V main off
12 V main on, 0A
Fan off
Fan at Minimum RPM
Fan at Minimum RPM
115 VAC
1.0 W
5.0 W
7.0 W
230 VAC
2.0 W
5.0 W
7.0 W
Notes:
1. Condition 1 defined as standby power supply shutdown mode.
2. Condition 2 defined as standby mode, no load.
3. Condition 3 defined as output enabled, no load.
3.7 FRU specification
The FRU device will implement the same protocols as the commonly used AT24C02 device,
including the Byte Read, Sequential Read, Byte Write, and Page Read protocols. EEPROM
follows standard FRU device address location: A0h. (The SMBus should have 3.3V logic
level). The FRU data format shall be compliant with the IPMI ver.1.0 (per rev.1.1 from
Sept.25, 1999) specification. The current version of this specification is available at:
http://developer.intel.com/design/servers/ipmi/spec.htm.
3.8 PMBus
The PMBus features are requirements for AC/DC silver box power supply for use in server
systems. It is also required to enable Intel
®
Intelligent Power Node Manager.
This specification is based on the PMBus™ specifications parts I and II, revision 1.1X3.
The power supply device address locations are shown:
PDB addressing Address0/1
0/0
0/1
1/0
1/1
Power supply PMBus™ device
B0h
B2h
B4h
B6h
Note:
Power supplies unit in the Intel
®
Server System SR1690WB are using the 0/0 address locations.
3.8.1 Hardware
The device in the power supply is compatible with both the SMBus 2.0 “high power”
specification for I
2
C Vdd based power and drive (for Vdd = 3.3V). This bus operates at 3.3 V
but is tolerant of 5 V signaling. It also operates at full 100 kbps SMBus speed without using
clock stretching to slow down the bus.
3.8.2 Data Format
The data format for current, voltage, power, temperature, and fan speed are using the
PMBus Literal format.