Artesyn ATCA-8330 Installation and Use (April 2015) - Manual (Page 164)

Intelligent Peripheral Management Controller
ATCA-8330 Installation and Use (6806800S82B) 164
7.4.5 Power Interface Sensors
An Ericsson Power input module (PIM4000) is used for the 48v to 12v conversion monitoring.
The power input module 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 7-3 .
7.4.6 Reset Cause Sensor
This sensor is implemented to monitor the last payload reset cause (hard reset, front panel
reset and so on). The IPMC evaluates the Reset Cause Register within the Glue Logic FPGA.
Table 7-3 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: Feed loss alarm ceased
1: Feed loss alarm raised
Bit 1 Voltage Feed B Enabled 0: Enable B is Disabled
1: Enable B is Enabled
Bit 0 Voltage Feed A Enabled 0: Enable A is Disabled
1: Enable A is Enabled