Technical Product Specification

Glossary Intel® Server System P4000IP and Intel® Workstation System P4000CR Family TPS
104 Intel order number G38159-002 Revision 1.2
Word/Acronym
Definition
OCP
Over Current Protection
OTP
Over Temperature Protection
Over-current
A condition in which a supply attempts to provide more output current than the amount for
which it is rated. This commonly occurs if there is a ‘short circuit’ condition in the load attached
to the supply.
OVP
Over Voltage Protection
PDB
Power Distribution Board
PFC
Power Factor Correction
PMBus
Power Management Bus
PSU
Power Supply Unit
PWM
Pulse Width Modulate
ppm
Parts per million
PWOK
A typical logic level output signal provided by the supply that signals the Server System that all
DC output voltages are within their specified range.
RI
Ring Indicate
Ripple
The periodic or random signals over frequency band of 10 Hz to 20 MHz.
Rise Time
The time it takes any output voltage to rise from 10% to 95% of its nominal voltage.
Sag
The condition where the AC line voltage drops below the nominal voltage conditions.
SAS
Serial Attached SCSI
SATA
Serial ATA
SCA
Single Connector Attachment
SCSI
Small Computer System Interface
SDK
Software Development Kit
SDR
Sensor Data Record
SE
Single-Ended
SES
SCSI Enclosure Service
SGPIO
Serial General Purpose Input/Output
SMBUS
System Management Bus
SSI
Server System Infrastructure
Surge
AC line voltage rises above nominal voltage
TACH
Tachometer
THD
Total Harmonic Distortion
UART
Universal Asynchronous Receiver Transmitter
USB
Universal Serial Bus
VCCI
Voluntary Control Council for Interference
VSB or Stand
By
An output voltage that is present whenever AC power is applied to the AC inputs of the supply.