Over Voltage Protection (Ovp); Table 20. Over Current Protection Limits / 240Va Protection; Table 21. Power Module Over Current Protection Limit; Table 22. Over Voltage Protection Limits - Intel SR2400 Technical Product Specification

Power Sub-system

Table 20. Over Current Protection Limits / 240VA Protection

Output Voltage
+3.3V
+5V
-12V
+12V1
+12V2
+12V3
+12V4
+5VSB
The power supply module has a current limit to prevent the +12V and 5VSB outputs from
exceeding the values shown below. If the current limits are exceeded, the power supply module
shall shutdown and latch off. The latch will be cleared by toggling the PSON
AC power interruption. The power supply shall not be damaged from repeated power cycling in
this condition. 5VSB shall be protected under over-current or shorted conditions, so that no
damage can occur to the power supply.

Table 21. Power Module Over Current Protection Limit

Output Voltage
+12V
+5Vsb
2.9.2

Over Voltage Protection (OVP)

Each DC/DC converter output from the PDB has individual OVP protection circuits built in and is
locally sensed. The PS+PDB combo shall shutdown and latch off after an over voltage
condition occurs. This latch is cleared by toggling the PSON
interruption. The following table provides the over voltage limits. The values are measured at
the PDB harness connectors. The voltage shall never exceed the maximum levels when
measured at the power pins of the output harness connector during any single point of fail. The
voltage shall never trip any lower than the minimum levels when measured at the power pins of
the PDB connector.
The power supply module over voltage protection shall be locally sensed. The power supply
module will shutdown and latch off after an over voltage condition occurs. This latch can be
cleared by toggling the PSON
provides the over voltage limits for the power supply module. The values are measured at the
output of the power module's connectors. The voltage shall never exceed the maximum levels
when measured at the power pins of the power module connector during any single point of fail.
The voltage shall never trip any lower than the minimum levels when measured at the power
pins of the power module connector.
22
MIN OCP TRIP LIMITS
150% min (= 36A min)
150% min (= 36A min)
125% min (= 0.625A min)
120% min (= 18.0A min)
120% min (= 18.0A min)
111% min (= 19.0A min)
112% min (= 18.0A min)
See PS spec
120% min (= 70.0A min); 140% max (= 80.0A max)
120% min (= 2.4A min); 300% max (= 6.0A max)

Table 22. Over Voltage Protection Limits

Output Voltage OVP MIN (V)
+3.3V 4.0
+5V 5.7
-12V -13.5
+12V1/2/3/4 See PS spec
#
signal or by an AC power interruption. The following table
Intel order number C78845-001
Intel® Server Chassis SR2400
MAX OCP TRIP LIMITS
187% max (= 45A max)
187% max (= 45A max)
560% max (= 2.8A max)
20A max (= 240VA max)
20A max (= 240VA max)
20A max (= 240VA max)
20A max (= 240VA max)
OCP LIMITS
#
signal or by an AC power
OVP MAX (V)
4.5
6.5
-14.5
#
signal or by an
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