AXP1406/AXP1600 Subsystem IPMI Programmer’s Reference (6806800B66C)
FRU Information and Sensor Data Records SAM Physical Shelf Manager Analog Sensors
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2.3.5 SAM Physical Shelf Manager Analog Sensors
The physical shelf managers at IPMB addresses 0xFC and 0xFE present the following analog
sensors:
zVoltage Sensors
zTemperature Sensors
The following tables describe the analog sensors available on the physical SAM. The
information in this section supports the SAM on both the AXP1406 and AXP1600 shelves. The
AXP1600 FRU and sensor data is highlighted and marked for ease of use.

2.3.5.1 Voltage Sensors

The following table describes the analog voltage sensors on the physical SAM.
Table 2-4 Sensor No. 2 Vbat
Feature Raw Value/Description Interpreted Value
Sensor Name Vbat
Device
Sensor Type 0x02 Voltage
Class 0x01 Threshold
Sensor Owner LUN 0x00
Entity ID 0xF0 PICMG Shelf Management
Controller
Entity Instance 0x60
Rearm mode Auto
Hysteresis support No
Threshold access support Readable/Settable
Event message control Entire Sensor only
Readable threshold mask,
Settable threshold mask (bytes
19, 20)
0x12, 0x12 Upper and Lower Critical
Thresholds are Readable and
Settable
Reading Type Unsigned
Lower critical threshold 0x00 0 Volts
Upper critical threshold 0xFF 3.315 Volts