---
title: "Ground Lug Installation (for DC Power Supply only)"
canonical: "https://docs.infoblox.com/space/IIGFIIPNINP/14516369/Ground%20Lug%20Installation%20(for%20DC%20Power%20Supply%20only)"
format: markdown
---
To meet grounding and bonding requirements for NEBS compliance, you must install a ground lug on the rear of the chassis. A ground lug nut is located on the chassis rear of the Rev-1 appliance, as labeled in *<span style="color: #0000ff">[Figure 3](https://infoblox-docs.atlassian.net/wiki/spaces/IIGFIIPNINP/pages/14516392/Infoblox-4010+Rev-1#Infoblox-4010Rev-1-bookmark8)</span>* and on the DC power supply as labeled in *<span style="color: #0000ff">[Figure 25](https://infoblox-docs.atlassian.net/wiki/spaces/IIGFIIPNINP/pages/14516256/Changing+DC+Power+Supplies#ChangingDCPowerSupplies-bookmark57)</span>* of this Guide. The ground lug, with two star washers, is provided in the accessory kit bundled with the Infoblox appliance. The star washers are used with the ground lug to ensure a snug fit. To install the ground lug, do the following:

1. Remove the ground lug nut from the rear of the chassis.
2. Place one star washer on the lug nut screw, which is part of the chassis.
3. Place the ground lug on the lug nut screw, followed by the second star washer.
4. Replace the lug nut screw. Ensure that it is snug.
5. Plug a (properly grounded) ground cable into the ground lug.

# > Macro (anchor)

> Macro (anchor)

> Macro (anchor)

Powering On the Appliance

The Infoblox-4010 and Network Insight ND-4000 ship with two (2) hot-swappable redundant AC power supply modules or two DC power supply modules. Infoblox recommends using the power cables shipped with the appliance to connect each power supply to separate power circuits. In the event of a power failure on one circuit, the appliance can then operate on the other.  
 To power the appliance:

- For each power supply, connect a power cable between the power connector on the back of the appliance and a properly grounded and rated power circuit that meets the provisions of the current edition of the National Electrical Code, or other wiring rules that apply to your location. Make sure that the outlet is near the appliance and is easily accessible.