Note: Before changing power supplies, make sure that they are securely cabled. An apparently failed power supply may simply be improperly connected to its power source.

The Infoblox-4030 and Infoblox-4030-10GE appliances ship with two redundant, auto-switching AC power supplies or optional DC power supplies, in a 1+1 configuration. The power supplies are "hot-swappable", so you can remove or replace one power supply without interrupting appliance operation and network services.
When a power supply fails for any reason, NIOS displays a power supply alarm. The Infoblox NIOS Dashboard will also display an Error under Grid Status. An email notification will be sent and an SNMP Trap will be reported.
When the appliance contains two functioning power supplies, they share the power load. If one power supply fails, the other assumes the full load automatically and the appliance sends the system alarm to NIOS. Although the appliance can run with only one power supply, Infoblox recommends installing both power supplies that are shipped with the appliance. This configuration minimizes the chance of system failure due to failure of an individual power supply.
Each power supply weighs about three pounds (1.36 kg). The faceplate of the power supply contains a power LED and a power switch. Each AC power supply provides a dedicated male power outlet. Figure 14 illustrates the process of replacing an AC power supply.

Figure 14 Removing an Infoblox-4030/Infoblox-4030-10GE AC Power Supply

To replace an Infoblox-4030/Infoblox-4030-10GE AC power supply, do the following:

1. Turn off the power supply.
2. Disconnect the AC power cable from the power outlet.
3. Gently push back the red catch-release lever, grip the power supply handle, and pull the power supply unit out of the chassis as illustrated in Figure 14.
4. Place the replacement power supply into the bay and push it forward until it is fully seated in the chassis. The catch-release lever will gently click into place.
5. Reconnect the power cable.
6. Turn on the power supply. If it is fully seated, powered on, and operating properly, the LED glows steady green.

Changing DC Power Supplies

WARNING: When installing a DC power supply, connect the ground wire to the PSU before connecting the positive or negative leads. Ensure that you use the correct polarity when connecting power leads to the PSU. Always remove power from the power supply before performing any installation or replacement steps or maintenance of the power supply.

In DC power configuration, the Infoblox-4030 and Infoblox-4030-10GE appliances ship with two redundant, auto-switching DC power supplies. The power supplies are "hot-swappable", so you can remove or replace one power supply without interrupting appliance operation and network services.
To replace an Infoblox-4030/Infoblox-4030-10GE DC power supply, do the following:

1. Disconnect the DC power cable from the power outlet on the external transformer.
2. Disconnect the power cable from the power supply.
3. Disconnect the ground cable from the power supply.
4. Gently push back the red quick-release lever, grip the power supply handle, and pull the power supply unit out of the chassis, as shown in Figure 15.
5. Place the replacement power supply into the bay and push it forward until it is fully seated in the chassis. The red catch-release lever will gently click into place.
6. Connect the ground cable to the new power supply.
7. Connect the power cable, ensuring that you use the correct polarity. If the power supply is fully seated and operating, the LED glows steady green.

Figure 15 Removing an Infoblox-4030/Infoblox-4030-10GE DC Power Supply

Notes on Changing AC Power to DC Power

Note: For additional DC power guidelines, see DC Power Supply Guidelines.

Infoblox offers the ability to change an AC-equipped Infoblox appliance to use DC power supply units by ordering field-replaceable unit DC PSUs (listed in Table 9). Should you choose to swap out an appliance's AC PSUs to use DC PSUs, follow these key points:

• You cannot convert an AC-equipped Infoblox-4030 or Infoblox-4030-10GE appliance to NEBS compliance by swapping out AC PSUs for DC PSUs. You are simply changing the power factor of the appliance.
• Ensure that you have proper ground connections that connect to the ground lug screws on each DC PSU. These lug screws will be marked with a standard electrical ground symbol on each DC PSU, as labeled in Figure 15.
• Your Infoblox appliance provides a ground lug, with two star washers and a ground lug screw, in the accessory kit bundled with your appliance. (This accessory is not used for AC power.) Ensure that this ground lug is properly installed with a grounding cable to chassis ground. For information, see Ground Lug Installation (DC Systems Only).

Important–Retain your original AC power supplies for possible future RMAs

• When you remove the AC power supplies for new DC power supplies, ensure that you keep the original AC power supplies in a safe place for use in RMA situations.
• For appliance RMAs, you must replace the DC power supplies in the appliance with its original AC power supplies before RMA shipment back to Infoblox.
• Keep your DC power supplies in your facility until you receive your replacement appliance.