Artesyn Embedded Technology ATCA-7490, Installation And Use Manual

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IPMI Feature Set
ATCA-7490 Installation and Use (6806800U11F )
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9.3.3 IPMC POST Results Sensor
The POST results sensor is of type
0x28
(Management subsystem health). It returns
information about whether the power-on self-test (POST) of the IPMI firmware passes or not.
For more details about the POST, see
POST on page 341 .
9.3.4 Power Good Sensor
The Payload Power sensor is of type
0x08
(Power Supply), which reports the state of the
payload power. As the Digital Power Monitor can disable payload power by its own due to a
faulty DC-DC converter, the IPMC monitors the health and reports an event in the case where
the Digital Power Monitor disables power-on by its own. As a result of this, the IPMC will pro-
actively transition the IPMC from M4 to M6 (to M1) with a cause code of
0x09
(Unexpected
Deactivation). This automatic shutdown is meant to keep the IPMC's state in-line with the
payload state.
9.3.5 Power Interface Sensors
An Ericsson Power input module (PIM4328) is used for the 48v to 12v conversion monitoring.
The PIM includes sensors, which monitor the shelf's 48v input feeds current, hold-up capacitor
voltage, on-board temperature, and internal status. The status sensor reading can be decoded
as shown in
Table 9-4 .
Table 9-4 Status Sensor's Sensor Reading
Bit # Type Status Description
Bit 7 Reserved 0
Bit 6 -48v Output Under
Voltage Alarm 0: Output Voltage is below threshold
1: Output Voltage is above threshold
Bit 5 Hot-swap Switch State 0: Hot-swap switch is off
1: Hot-swap switch is on
Bit 4 Holdup Switch State 0: Holdup Cap is not connected to -48V Out
1: Holdup Cap is connected to -48V Out
Bit 3 Reserved 0