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Introduction
The xSeries343 server system uses a
Interface Requirements
DC Input
The DC power source may produce hazardous voltage levels exceeding
DC Output Connectors
The power subsystem DC power and control signals are interfaced to the server system via wire harnesses when the power supply modules are inserted into the power subsystem enclosure. The safety ground pin of the power supply module is the first pin to connect and the last to disconnect when the module is being inserted or removed from the power subsystem housing. In addition to the 5 V Standby,
•+3.3 VDC remote sense
•+5 VDC remote sense
•+12 VDC remote sense
•Remote sense return
•Power Subsystem On (DC PWR enable)
•Power Good
•I2C*
*PS Failure, PS Presence, PS Predictive Fail, +12 V Mon, +5 V Mon, and the 5 V Standby rails failure are being monitored via an I2C interface chip.
Power Supply Module LED Indicators
There is a single
Table 8. LED Indicators
Power Supply Condition | Power Supply LED |
|
|
No DC power to all PSU | OFF |
|
|
No DC power to this PSU only | AMBER |
|
|
DC present / Only Standby Outputs On | BLINK GREEN |
|
|
Power supply DC outputs ON and OK | GREEN |
|
|
Power Supply in Alert Condition | BLINK AMBER |
|
|
Power supply failure (OTP, OCP, OVP, UV) | AMBER |
|
|
24 | xSeries 343 Hardware Maintenance Manual |