Pmbus Monitoring Interface; Table 34. Led Indicators - Intel SC5650HCBRP Product Specification

Power Sub-system
Power Supply Condition
AC Power Off
AC Power On in Standby Mode
AC On and All Outputs in Normal Mode
Any DC Outputs Short Circuit
DC Fan Not Spinning
OTP
The LEDs are visible on the power supply's exterior face. The LEDs' location meets
Electrostatic Discharge (ESD) requirements. LEDs are securely mounted in such a way that
incidental pressure on the LEDs does not cause them to be displaced.
Bits allow the LED states to be forced via the SMBus. The following capabilities are required:
•
Force Amber ON for failure conditions.
•
No Force (LED state follows power supply present state)
The power-on default is 'No Force'. The default is restored whenever PSON transitions to assert.
4.1.6

PMBus Monitoring Interface

The PMBus features included in this specification are requirements for ac/dc silver box power
supply for use in mainstream server systems. This specification is based on the PMBus
specifications parts I and II, revision 1.2.
4.1.6.1 Related Documents
PMBus™ Power System Management Protocol Specification Part I – General Requirements,
Transport And Electrical Interface; Revision 1.2
PMBus™ Power System Management Protocol Specification Part II – Command Language;
Revision 1.2
System Management Bus (SMBus) Specification Version 2.0
4.1.6.2 Addressing
The power supply PMBus device address locations are shown in the following table. For
redundant systems there are up to three signals to set the address location of the power supply
once it is installed in the system: Address2, Address1, and Address0. For non-redundant
systems the power supply device address location should be B0h.
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Table 34. LED Indicators

Status LED
(AC OK / Power Supply
Fail)
OFF
Green
Green
Green
Amber
Amber
Intel order number E81443-002
Intel® Server System SC5650HCBRP TPS
Power Led
(Power Good)
OFF
OFF
Green
OFF
OFF
Green
Remarks
Power Distribution
Board protection only;
module OK
Module protection only
Send out alert signal
Revision 1.2