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• Ensure that the chassis is grounded. For grounding instructions, see

Grounding the Chassis

.

Step 1

Pull the power cord out from the power receptacle on the power supply to be removed and verify that the

LED turns

off.

The

LED might be on and amber colored to indicate that the input power has been disconnected.

Note

If you need to remove an Anderson's Saf-D-Grid power cable connector from a high-voltage power supply,
press the tab at the top of the connector and pull the connector out of the power supply.

Note

Step 2

Remove the power supply from the chassis by pushing and holding its thumb latch to the left and pulling the power supply
part way out of the chassis.

Step 3

Place your other hand under the power supply to support it while you slide it out of the chassis.

Either place the power supply on an antistatic surface or pack it in its packing materials.

Step 4

If the power supply slot is to remain empty, install a blank power supply filler panel (part number N2200-P-BLNK).

What to do next

You are ready to install the replacement power supply.

Removing an HVAC/HVDC Power Supply

You can remove one power supply while the other one provides power to the switch.

To disconnect the power supply from its power cables, you must shut off the power from the power source
and then either disconnect a connector for the power cables or release each of three cables from the power
supply (requires a standard screw driver).

Step 1

Turn off the circuit breaker for the power feed to the power supply that you are replacing.

Be sure that the LEDs turn off on the power supply that you are removing.

Step 2

Remove the power cable from the power supply by pressing the tab on the top of the Anderson Power SAF-D-Grid
connector and pull the cable and connector out of the power supply.

Step 3

Grasp the power supply handle while pressing the release latch towards the power supply handle.

Step 4

Place your other hand under the power supply to support it while you slide it out of the chassis.

Do not touch the electrical connectors on the back side of the module and prevent anything else from coming
into contact with and damaging the connectors.

Caution

What to do next

You are ready to install an HVAC/HVDC power supply in the open slot.

Replacing Modules

3

Replacing Modules

Removing an HVAC/HVDC Power Supply

Summary of Contents for Nexus 93108TC-EX

Page 1: ... in air from a cold aisle and exhausts to a hot aisle Otherwise the switch can overheat and shutdown If you are changing the airflow direction of all the modules in the chassis you must shutdown the switch before replacing all the fan and power supply modules with modules using the other airflow direction During operations all of the modules must have the same direction of airflow Caution Removing...

Page 2: ...requires two power supplies for redundancy With one power supply providing the necessary power for operations you can replace the other power supply during operations so long as the new power supply has the same airflow direction as the other modules in the chassis You can replace a power supply with another supported power supply that has the same power source type and the same wattage rating as ...

Page 3: ...ly Removing an HVAC HVDC Power Supply You can remove one power supply while the other one provides power to the switch To disconnect the power supply from its power cables you must shut off the power from the power source and then either disconnect a connector for the power cables or release each of three cables from the power supply requires a standard screw driver Step 1 Turn off the circuit bre...

Page 4: ...the power supply handle while pressing the release latch towards the power supply handle Step 4 Pull the power supply out of the bay What to do next You are ready to install a DC power supply in the open slot Installing an AC Power Supply You can replace one power supply while the other one provides power to the switch Before you begin The power supply that you are installing must be capable of us...

Page 5: ... until it clicks in place Step 3 Attach the power cable to the electrical outlet on the front of the power supply Step 4 Make sure that the other end of the power cable is attached to the appropriate power source for the power supply Depending on the outlet receptacle on your power distribution unit you might need the optional jumper cable to connect the switch to your outlet receptacle Note Step ...

Page 6: ...lectrical connector block insert the block into the power receptacle on the power supply If the electrical cables have not been connected to the electrical connector block wire them as described in Wiring a 48 V DC Electrical Connector Block on page 7 Step 4 Make sure that the other end of the power cable is connected to the appropriate power source for the power supply Step 5 If using a DC power ...

Page 7: ...block insert the block into the power receptacle on the power supply If the electrical cables have not been connected to the electrical connector block wire them as described in Wiring a 48 V DC Electrical Connector Block on page 7 Step 3 Turn on the circuit breaker for the DC power source connected to the power supply Step 4 Verify that the power supply is operational by making sure that the powe...

Page 8: ...turn DC cable 3 Step 5 Use a small screwdriver to depress the spring loaded wire retainer lever on the lower spring cage wire connector Insert your green ground wire into the aperture and then release the lever Step 6 Use a small screwdriver to depress the spring loaded wire retainer lever on the middle spring cage wire connector Insert your black DC negative wire into the aperture and then releas...

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