R1000GZ and R1000GL

Intel
®
Server System R1000GZ/GL Product Family TPS
3.7.7.4 Surge Immunity
The power supply shall be tested with the system for immunity, per EN 55024:1998, EN 61000-4-5:1995 and
ANSI C62.45: 1992.
The pass criteria include: No unsafe operation is allowed under any condition; All power supply output voltage levels to
stay within proper spec levels; No change in operating state or loss of data during and after the test profile; No component
damage under any condition.
The power supply shall comply with the limits defined in EN55024: 1998 using the IEC 61000-4-5:1995 test standard and
performance criteria B defined in Annex B of CISPR 24. Limits shall comply with those specified in the Intel Environmental
Standards Handbook.
3.7.8 Protection Circuits
Protection circuits inside the power supply shall cause only the power supply’s main outputs to shutdown. If
the power supply latches off due to a protection circuit tripping, an DC cycle OFF for 15sec and a PSON# cycle
HIGH for 1sec shall be able to reset the power supply.
3.7.8.1 Current Limit (OCP)
The power supply shall have current limit to prevent the outputs from exceeding the values shown in table
below. If the current limits are exceeded the power supply shall shutdown and latch off. The latch will be
cleared by toggling the PSON# signal or by an DC power interruption. The power supply shall not be damaged
from repeated power cycling in this condition. 12VSB will be auto-recovered after removing OCP limit.
Table 17. Over Current Protection
Output
VOLTAGE
Input voltage
range
OVER CURRENT LIMITS
+12V
72A min; 78A max
12VSB
2.5A min; 3.5A max
3.7.8.2 Over Voltage Protection (OVP)
The power supply over voltage protection shall be locally sensed. The power supply shall shutdown and latch
off after an over voltage condition occurs. This latch shall be cleared by toggling the PSON# signal or by an
DC power interruption. The values are measured at the output of the power supply’s connectors. The voltage
shall never exceed the maximum levels when measured at the power connectors of the power supply
connector during any single point of fail. The voltage shall never trip any lower than the minimum levels when
measured at the power connector. 12VSBwill be auto-recovered after removing OVP limit.
Table 18. Over Voltagge Protection Limits
Output Voltage
MIN (V)
MAX (V)
+12V
13.3
14.5
+12VSB
13.3
14.5
3.7.8.3 Over Temperature Protection (OTP)
The power supply will be protected against over temperature conditions caused by loss of fan cooling or
excessive ambient temperature. In an OTP condition the PSU will shutdown. When the power supply
temperature drops to within specified limits, the power supply shall restore power automatically, while the
12VSB remains always on. The OTP circuit must have built in margin such that the power supply will not
oscillate on and off due to temperature recovering condition. The OTP trip level shall have a minimum of 4 C
of ambient temperature margin
Revision 2.2
25