Intel S2600CP Technical Product Specification - Page 156

Control and Indicator Functions

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Intel® Server System P4000CP Power System Options Intel® Server Board S2600CP and Server System P4000CP TPS signal or by an AC power interruption. The table below contains the over voltage limits. The values are measured at the output of the power supply's pins. The voltage shall never exceed the maximum levels when measured at the power pins 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 pins of the power supply connector. 5VSB will be auto-recovered after removing OVP limit. Table 87. Voltage Protection (OVP) Limits Output Voltage +3.3V +5V +12V1,2,3 +5VSB MAX (V) 4.5 6.5 14.5 6.5 13.2.6.3 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. 13.2.7 Control and Indicator Functions The following sections define the input and output signals from the power supply. Signals that can be defined as low true use the following convention: Signal# = low true 13.2.7.1 PSON# Input Signal The PSON# signal is required to remotely turn on/off the power supply. PSON# is an active low signal that turns on the +3.3V, +5V, +12V1,+12V2,+12V3 and -12V power rails. When this signal is not pulled low by the system, or left open, the outputs (except the +5VSB) turn off. This signal is pulled to a standby voltage by a pull-up resistor internal to the power supply. Refer to Figure 17 for the timing diagram. Table 88. PSON# Signal Characteristic Signal Type PSON# = Low PSON# = High or Open Logic level low (power supply ON) Logic level high (power supply OFF) Source current, Vpson = low Power up delay: Tpson_on_delay PWOK delay: T pson_pwok Accepts an open collector/drain input from the system. Pull-up to VSB located in power supply. ON OFF MIN MAX 0V 1.0V 2.0V 5.25V 4mA 5msec 400msec 50msec 140 Revision 1.2 Intel order number G26942-003

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Intel
®
Server System P4000CP Power System Options
Intel
®
Server Board S2600CP and Server System P4000CP TPS
Revision 1.2
Intel order number G26942-003
140
signal or by an AC power interruption. The table below contains the over voltage limits. The
values are measured at the output of the power supply’s pins. The voltage shall never exceed
the maximum levels when measured at the power pins 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 pins of the power supply connector. 5VSB will be auto-recovered after
removing OVP limit.
Table 87. Voltage Protection (OVP) Limits
Output Voltage
MAX (V)
+3.3V
4.5
+5V
6.5
+12V
1,2,3
14.5
+5VSB
6.5
13.2.6.3
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.
13.2.7
Control and Indicator Functions
The following sections define the input and output signals from the power supply.
Signals that can be defined as low true use the following convention: Signal# = low true
13.2.7.1
PSON# Input Signal
The PSON
#
signal is required to remotely turn on/off the power supply. PSON
#
is an active low
signal that turns on the +3.3V, +5V, +12V1,+12V2,+12V3 and -12V power rails. When this
signal is not pulled low by the system, or left open, the outputs (except the +5VSB) turn off. This
signal is pulled to a standby voltage by a pull-up resistor internal to the power supply.
Refer to
Figure 17 for the timing diagram.
Table 88. PSON# Signal Characteristic
Signal Type
Accepts an open collector/drain input from the system. Pull-up
to VSB located in power supply.
PSON# = Low
ON
PSON# = High or Open
OFF
MIN
MAX
Logic level low (power supply ON)
0V
1.0V
Logic level high (power supply OFF)
2.0V
5.25V
Source current, Vpson = low
4mA
Power up delay: Tpson_on_delay
5msec
400msec
PWOK delay: T pson_pwok
50msec