Cable Routing Procedures for Dell $ ^{™} $ PowerEdge $ ^{™} $ R910 Systems

A Dell™ Technical White Paper

Dell™ | Datacenter Infrastructure Engineering

By Chris Kitten and Jose L. Flores

March 2010

DELL

Cable Routing Procedures for Dell $ ^{TM} $ PowerEdge $ ^{TM} $ R910 Systems

THIS WHITE PAPER IS FOR INFORMATIONAL PURPOSES ONLY, AND MAY CONTAIN TYPOGRAPHICAL ERRORS AND TECHNICAL INACCURACIES. THE CONTENT IS PROVIDED AS IS, WITHOUT EXPRESS OR IMPLIED WARRANTIES OF ANY KIND.

© 2010 Dell Inc. All rights reserved. Reproduction of this material in any manner whatsoever without the express written permission of Dell Inc. is strictly forbidden. For more information, contact Dell.

Dell, the DELL logo, the DELL badge, and PowerEdge are trademarks of Dell Inc.

Cable Routing Procedures for Dell $ ^{TM} $ PowerEdge $ ^{TM} $ R910 Systems

Contents

Introduction ..... 2
Section 1: Cabling a Dell™ PowerEdge™ R910 With a Cable Management Arm (CMA) ..... 2
1.1 Connecting the CMA Cables to the System ..... 2
1.2 Routing the Power Cables Through the Strain Reliefs ..... 3
1.3 Routing the Cables Through the CMA ..... 3
1.4 Left-Side Mounting Instructions ..... 3
1.5 Right-Side Mounting Instructions ..... 5
Section 2: Cabling a Dell™ PowerEdge™ R910 System Without a CMA ..... 6
2.1 Routing the Cables ..... 6
2.2 Removing the CMA Brackets for Shallow Racks ..... 6
Section 3: Replacing a Power Supply on a PowerEdge™ R910 System With a CMA ..... 7
3.1 Replacing a Power Supply with a Left-Side Mounted CMA ..... 7
3.2 Replacing a Power Supply with a Right-Side Mounted CMA ..... 7

Table of Figures

Figure 1: System with Cables Installed ..... 2
Figure 2: Routing Power Cables Through the Strain Reliefs ..... 3
Figure 3: Routing the Cables Through the CMA ..... 4
Figure 4: Left-Side Mounted CMA Installation ..... 4
Figure 5: Right-Side Mounted CMA Installation ..... 5
Figure 6: Cable Routing Without a CMA ..... 6
Figure 7: Removing the CMA Brackets for Shallow Racks ..... 6
Figure 8: Replacing the Power Supply ..... 7

Cable Routing Procedures for Dell $ ^{TM} $ PowerEdge $ ^{TM} $ R910 Systems

Introduction

This white paper covers recommended cable routing procedures for Dell $ ^{™} $ PowerEdge $ ^{™} $ R910 systems in the following racks:

• PowerEdge $ ^{TM} $ 4210

• PowerEdge $ ^{TM} $ 2410

• PowerEdge $ ^{TM} $ 4220

• PowerEdge $ ^{TM} $ 2420

If you are using the optional CMA, following these procedures will allow you to extend the system from the rack for service without powering down or disconnecting the cables. If you are not using the CMA, following these procedures will ensure secure attachment and strain relief of the cables behind the system. For guidelines on how to route cables within the rack, refer to the Dell Best Practices Guide for Rack Enclosure white paper.

Section 1: Cabling a Dell $ ^{TM} $ PowerEdge $ ^{TM} $ R910 With a Cable Management Arm (CMA)

This section details how to cable a PowerEdge™ R910 system using a CMA. If you are cabling the system without the optional CMA, refer to Section 2.

Follow the instructions contained in the Rack Installation Guide in the rail kit to install the server into the rack. Once installed, use these instructions to install the cables. All illustrations in the following sections were created using a PowerEdge™ R910 system.

NOTE: PowerEdge™ R910 systems are not compatible with previous generation rails and CMAs.

1.1 Connecting the CMA Cables to the System

Attach the CMA tray to the back of the rails as described in the CMA Installation Instructions provided in the CMA kit. Connect all applicable cables to the rear of the system and verify that all connections are secure. See Figure 1.

Figure 1: System with Cables Installed

1.2 Routing the Power Cables Through the Strain Reliefs

After you have installed the tray and cables, route the power cables through the strain reliefs located on the power supply handles as shown in Figure 2.

Figure 2: Routing Power Cables Through the Strain Reliefs

1.3 Routing the Cables Through the CMA

You can install the CMA on either the rear right or rear left side of the rails. Mounting the CMA on the side that is opposite of the power supplies (left-side mount) is recommended; otherwise, the CMA must be disconnected, to some extent, in order to remove the power supplies. Refer to Section 3 for details on power supply replacement.

NOTE: For guidelines on how to route cables within the rack, refer to the Dell Best Practices Guide for Rack