Lenovo PC 300GL Technical Information Manual 6272, 6282 - Page 36

Output Protection, Connector Description

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Chapter 4. Power Supply Figure 33. Internal DASD Supply Voltage +5.0 V dc +12.0 V dc Maximum Current 1400 mA 1500 mA Regulation Limits +5.0% to −5.0% +5.0% to −5.0% Note: Some adapters and hard disk drives draw more current than the recommended limits. These adapters and drives can be installed in the system; however, the power supply will shut down if the total power used exceeds the maximum power that is available. Output Protection The power supply protects against output overcurrent, overvoltage, and short circuits. Please see the power supply specifications for details. A short circuit that is placed on any dc output (between outputs or between an output and dc return) latches all dc outputs into a shutdown state, with no damage to the power supply. If this shutdown state occurs, the power supply returns to normal operation only after the fault has been removed and the power switch has been turned off for at least one second. If an overvoltage fault occurs (in the power supply), the power supply latches all dc outputs into a shutdown state before any output exceeds 130% of the nominal value of the power supply. Connector Description The power supply for the PC 300GL 6272 has three 4-pin connectors and the PC 300GL 6282 has four 4-pin connectors for internal devices. The total power used by the connectors must not exceed the amount shown in "Component Outputs" on page 23. For information on the pin assignments for the different connectors, see Appendix A, "Connector Pin Assignments" on page 31. 24 Technical Information Manual

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Chapter 4.
Power Supply
Note:
Some adapters and hard disk drives draw more current than the recommended limits.
These
adapters and drives can be installed in the system; however, the power supply will shut down if the
total power used exceeds the maximum power that is available.
Output Protection
The power supply protects against output overcurrent, overvoltage, and short circuits.
Please see the
power supply specifications for details.
A short circuit that is placed on any dc output (between outputs or between an output and dc return)
latches all dc outputs into a shutdown state, with no damage to the power supply.
If this shutdown state
occurs, the power supply returns to normal operation only after the fault has been removed and the power
switch has been turned off for at least one second.
If an overvoltage fault occurs (in the power supply), the power supply latches all dc outputs into a
shutdown state before any output exceeds 130% of the nominal value of the power supply.
Connector Description
The power supply for the PC
300GL 6272 has three 4-pin connectors and the PC
300GL 6282 has four
4-pin connectors for internal devices.
The total power used by the connectors must not exceed the
amount shown in “Component Outputs” on page
23.
For information on the pin assignments for the
different connectors, see Appendix
A, “Connector Pin Assignments” on page
31.
Figure 33. Internal DASD
Supply Voltage
Maximum Current
Regulation Limits
+
5.0 V dc
1400 mA
+
5.0% to
-
5.0%
+
12.0 V dc
1500 mA
+
5.0% to
-
5.0%
24
Technical Information Manual