C H A P T E R 3 - Power and Fan Module FRUs

C H A P T E R 3

Power and Fan Module FRUs

Topics covered in this chapter are:

Section 3.1, Replacing Power Supply/Fan Modules for 2U Arrays

Section 3.1.1, Replacing an AC Power Supply/Fan Module

Section 3.1.2, Replacing a DC Power Supply/Fan Module

Section 3.2, Replacing Power Supply/Fan Modules for 1U Arrays

Section 3.2.1, Replacing an AC Power Supply/Fan Module

Section 3.2.2, Replacing a DC Power Supply/Fan Module

The following power specifications apply to the power supply and fan modules:

TABLE 3-1 Power Specifications
AC power:	Voltage and frequency 90 to 264 VAC, 47 to 63 Hz
Input current:	1U: 4A max 2U: 5A max
Power-supply output voltages:	+5 VDC and +12 VDC
DC power:	-48V DC (-36 VDC to -72 VDC)

3.1 Replacing Power Supply/Fan Modules for 2U Arrays

3.1.1 Replacing an AC Power Supply/Fan Module

Caution - To avoid damage to equipment, do not remove a power supply/fan module without a working replacement.

3.1.1.1 Removing an AC Power Supply/Fan Module

Be sure to follow Section 1.2, Static Electricity Precautions.

1. Turn off the power, then remove the AC cord locks (if applicable) and the power cable.

2. Turn the thumbscrew at the top of the power supply latch counterclockwise until the thumbscrew is disengaged from the power supply.

FIGURE 3-1 The Power Supply Partially Pulled out of the Chassis

Figure showing the power supply and fan module partially removed from the chassis.

3. Pull the latch forward about 45 degrees to disconnect the power supply/fan module from the midplane.

4. Use the power supply handle to pull the power supply/fan module out of the chassis.

3.1.1.2 Installing an AC Power Supply/Fan Module

1. Slide the new module into the fan and power supply slot.

2. Push the latch back so that the power supply is fully inserted into the chassis.

3. Turn the thumbscrew at the top of the power supply latch clockwise until it is finger-tight, to secure the module.

Note - To ensure that a thumbscrew is finger-tight, tighten it with a screwdriver and then loosen the thumbscrew counterclockwise a quarter turn.

4. Attach the power cable and reinstall the AC cord locks if applicable.

5. Turn the power back on.

3.1.2 Replacing a DC Power Supply/Fan Module

Caution - To avoid damage to equipment, do not remove a power supply/fan module without a working replacement.

3.1.2.1 Removing a DC Power Supply/Fan Module

Be sure to follow Section 1.2, Static Electricity Precautions.

1. Use a flatblade screwdriver to loosen the two screws that secure the power cable to the power supply and then disconnect the cable from the supply.

2. Turn the thumbscrew at the top of the power supply latch counterclockwise until the thumbscrew is disengaged from the power supply.

3. Pull the latch forward about 45 degrees to disconnect the power supply/fan module from the midplane.

4. Use the power supply handle to pull the power supply/fan module out of the chassis.

3.1.2.2 Installing a DC Power Supply/Fan Module

1. Slide the new module into the fan and power supply slot.

2. Push the latch back so that the power supply is fully inserted into the chassis.

3. Turn the thumbscrew at the top of the power supply latch clockwise until it is finger-tight to secure the module.

Note - To ensure that a thumbscrew is finger-tight, tighten it with a screwdriver and then loosen the thumbscrew counterclockwise a quarter turn.

4. Connect the DC power cable to the DC source.

Note - Use only DC power cables provided with the array.

Check the DC cable part number and wire labels carefully before connecting the cable to the source (see the following table.) GND = Chassis Ground.

TABLE 3-2 DC Cable Wiring
Cable 35-00000156 or 35-00000306
Pin #	Voltage	Color
A3	L+	White
A2	GND	Green/Yellow
A1	L-	White

5. Extend the length of the DC power cable as needed, strip the last 1/4-inch of the cable, insert it into a provided Panduit tube, and crimp the tube.

6. Attach the power cable to the RAID product.

7. Turn the power on.

3.2 Replacing Power Supply/Fan Modules for 1U Arrays

3.2.1 Replacing an AC Power Supply/Fan Module

Caution - To avoid damage to equipment, do not remove a power supply/fan module without a working replacement.

3.2.1.1 Removing an AC Power Supply/Fan Module

1. Be sure to follow Section 1.2, Static Electricity Precautions.

2. Turn off the power, and then remove the AC cord locks (if applicable) and the power cable.

3. Turn the thumbscrew at the top of the power supply latch counterclockwise until the thumbscrew is disengaged from the power supply.

FIGURE 3-2 The Power Supply Partially Pulled out of the Chassis

4. Pull the latch forward about 90 degrees to disconnect the power supply/fan module from the midplane.

5. Pull the power supply/fan module out of the chassis.

3.2.1.2 Installing an AC Power Supply/Fan Module

1. Slide the new module into the fan and power supply slot.

2. Push the latch back so that the power supply is fully inserted into the chassis.

3. Turn the thumbscrew at the top of the power supply latch clockwise until it is finger-tight, to secure the module.

Note - To ensure that a thumbscrew is finger-tight, tighten it with a screwdriver and then loosen the thumbscrew counterclockwise a quarter turn.

4. Attach the power cable and reinstall the AC cord locks if applicable.

5. Turn the power back on.

3.2.2 Replacing a DC Power Supply/Fan Module

Caution - To avoid damage to equipment, do not remove a power supply/fan module without a working replacement.

3.2.2.1 Removing a DC Power Supply/Fan Module

1. Be sure to follow Section 1.2, Static Electricity Precautions.

2. Turn off the power and remove the power cable.

3. Turn the thumbscrew at the top of the power supply latch counterclockwise until the thumbscrew is disengaged from the power supply.

FIGURE 3-3 The Power Supply Partially Pulled out of the Chassis

4. Pull the latch forward about 90 degrees to disconnect the power supply/fan module from the midplane.

5. Pull the power supply/fan module out of the chassis.

3.2.2.2 Installing a DC Power Supply/Fan Module

1. Slide the new module into the fan and power supply slot.

2. Push the latch back so that the power supply is fully inserted into the chassis.

3. Turn the thumbscrew at the top of the power supply latch clockwise until it is finger-tight, to secure the module.

Note - To ensure that a thumbscrew is finger-tight, tighten it with a screwdriver and then loosen the thumbscrew counterclockwise a quarter turn.

4. Connect the DC power cable to the DC source.

Note - Use only DC power cables provided with the array.

Check the DC cable part number and wire labels carefully before connecting the cable to the source (see the following table.) GND = Chassis Ground.

TABLE 3-3 DC Cable Wiring
Cable 35-00000156 or 35-00000306
Pin #	Voltage	Color
A3	L+	White
A2	GND	Green/Yellow
A1	L-	White

5. Extend the length of the DC power cable as needed, strip the last 1/4-inch of the cable, insert it into a provided Panduit tube, and crimp the tube.

6. Attach the power cable to the array.

7. Turn the power on.