UserÆs Guide and Technical UserÆs Guide - HP Carrier Grade Server cc3300

HP cc3300 Carrier Grade Server Product Guide
32 Chassis Description
made only by a qualified service person only to prevent injury. All wiring terminals connected to
the DC input terminal block must be fully insulated with no exposed bare metal.
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, -12 V, +3.3 V, +5 V and +12 V DC outputs, the following signals and output pins
are included:
• +3.3 VDC remote sense
• +5 VDC remote sense
• +12 VDC remote sense
• Remote sense return
• Power Subsystem On (DC PWR enable)
• Power Good
• I
2
C
*
*
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 I
2
C interface chip.
Power Supply Module LED Indicators
There is a single bi-color LED to indicate power supply status visible on the back of the system.
Table 8 shows the conditions confirmed by the LED indicators.
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
DC Input Voltage Specification
The power supply will operate within all specified limits over the following input voltage range.
The power supply will power-off if the DC input is less than -34 VDC.
Table 9. DC Input Rating
Parameter
Minimum
Tolerance
Nominal
Rating
Maximum
Tolerance
1
Maximum Input
Current
Voltage -38VDC -48 to -60VDC -75VDC 13.5 Amps
1
Maximum input current is measured at the lowest input voltage that the power supply continues to operate. This is not to
be used for determining agency input current markings.