Artesyn ATCA-9405 Installation and Use (May 2014) - Manual (Page 129)

Intelligent Peripheral Management Controller
ATCA-9405 Installation and Use (6806800M71G) 129
8.5.3 POST Results Sensor
The POST results sensor is of type 0x28 (Management subsystem health), which returns
information on whether the power-on self-test (POST) of the IPMI firmware passes or not. For
more information on POST, see
POST on page 132 .
8.5.4 Power Good Sensor
The Payload Power sensor is of type 0x08 (Power Supply) which reports the state of the payload
power. Since the Digital Power Monitor can disable payload power on its own due to a faulty
DC-DC converter, the IPMC monitors the health and reports an event when the Digital Power
Monitor disables power on its own. As a result, the IPMC proactively transitions the IPMC from
M4 to M6 (to M1) with a cause code of 0x09 (Unexpected Deactivation). This automatic
shutdown is meant to keep the IPMCs state in-line with the payload state.
8.5.5 Power Interface Sensors
A PowerOne Power input module (Synqor) is used for the 48v to 12v conversion monitoring.
The Synqor 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 8-3 on page 129 .
Table 8-3 Status Sensor's Sensor Reading
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
Bit 2 Alarm Signal State 0: Primary side Alarm is not set
1: Primary side Alarm is set