Dell EMC PowerEdge MX7000 Quick Start Manual page 6

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Assembling the -48V DC power input

About this task

NOTE:

This product is intended to be used in CBN (Common Bonding Network) applications.

NOTE:

Each MX7000 chassis requires 2 earth-ground cable assemblies.

Steps

1. Install the chassis into the rack by using rails, and then attach the strain-relief bar. For more information, see the Rail

Installation Guide shipped with rail kit.

NOTE:

Due to weight of the 2 AWG DC power cable assemblies, it is highly recommended to attach the strain-relief bar

to the rear chassis bracket mounts.

2. Strip the insulation from the end of the 2 AWG green / yellow ground cable, exposing approximately 15/16 inches (~24 mm).

3. Cut heat-shrink tubing for each ground cable lug to a length that allows tubing to cover the ground lug barrel ¾ inch (~19

mm) and ground cable ¾ inches. Slide heat-shrink tubing over each 2 AWG cable before crimping lugs (due to width of lug).

4. For the end of the ground cable that attaches to the chassis rear wall – use a manual or hydraulic crimping tool to crimp a 2

AWG 90 degree, 2-hole Panduit LCDN2-14AF-Q lug to the 2 AWG green / yellow insulated copper ground cable.

5. Adjust heat-shrink tubing so that barrel of lug and cable are each covered ¾ inch (19mm). Using a heat gun, shrink tubing

over the cable and barrel of lug nut until tight.

6. Attach cable end with 90 degree 2-hole lug to the chassis 2-hole ground studs using 2 pieces of M6 nuts with integrated

star washers.

7. For the other end of ground cable, follow the same process using heat-shrink tubing, but instead crimp an appropriate ring

terminal and ground as required.

NOTE:

The system shown is for representative purpose only and may not match the actual system that you purchased.

Figure 1. Assembling and connecting the safety ground cable

8. To disassemble DC-IN connector housing to access 2 AWG Panduit lugs embedded within, remove two 1.5 mm hex screws

and separate the housing.

Assembling the -48V DC power input connector and cables

connector and cables

E44s