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Cable Routing Procedures for Dell PowerEdge R620 Systems

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Greg Henderson and Jose L. Flores

Data Center Infrastructure Engineering

March 2012

Cable Routing Procedures for Dell™
PowerEdge™ R620 Systems

This Dell Technical White Paper explains the best practices for routing
and securing the cables exiting the back of the R620 systems.

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Summary of Contents for PowerEdge PDU Managed LED

Page 1: ...enderson and Jose L Flores Data Center Infrastructure Engineering March 2012 Cable Routing Procedures for Dell PowerEdge R620 Systems This Dell Technical White Paper explains the best practices for routing and securing the cables exiting the back of the R620 systems ...

Page 2: ...ies of any kind 2012 Dell Inc All rights reserved Dell and its affiliates cannot be responsible for errors or omissions in typography or photography Dell the Dell logo and PowerEdge are trademarks of Dell Inc Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell disclaims proprietary interest in the marks a...

Page 3: ...g the cables 10 3 2 Removing the outer CMA brackets for shallow racks 10 Section 4 Cabling a PowerEdge R620 system installed on static rails 11 Figures Figure 1 System with cables installed 4 Figure 2 Routing power cables through the strain reliefs 5 Figure 3 Attaching the inner CMA attachment bracket 5 Figure 4 Routing the cables through the CMA 6 Figure 5 Left side mounted CMA installation prefe...

Page 4: ...ird party rack compatibility refer to the Dell Enterprise Systems Rail Sizing and Rack Compatibility Matrix located at http content dell com us en enterprise d business solutions engineering docs en Documents rail rack matrix pdf aspx Section 1 Cabling a PowerEdge R620 with a CMA This section details how to cable the PowerEdge R620 systems on sliding rails using a CMA If you are cabling the system...

Page 5: ...wer supply Refer to Section 2 for details on power supply replacement NOTE If you are installing fiber optic cables in the CMA a cable bend radius of at least 1 inch must be maintained throughout the length of the cable It is recommended that fiber optic cables be routed on the exterior of the cable bundle to increase the bend radius of the fiber optic cables through the CMA Additionally a large a...

Page 6: ...of the CMA using the tie wraps provided in the CMA kit 5 Clip off the excess length of material from the tie wraps Make sure that the heads of the tie wraps are positioned so as to avoid interference with adjacent systems Return the CMA to the closed retracted position 6 Extend the system out of the rack to verify that there is sufficient slack in the cables on both ends of the CMA This step is pa...

Page 7: ...l the CMA on the rear right side of the rails by attaching both CMA housings to the attachment brackets on the rails The remaining steps are the same as for left side mounting as described in Section 1 3 2 See Figure 6 for an example of a completed right side mounted CMA installation Right side mounted CMA installation CMA shown in service position Figure 6 ...

Page 8: ...ection 2 1 If the outermost power supply must be replaced follow the steps described below 2 Swing the CMA to its service position as described in the CMA Installation Instructions provided with the CMA kit 3 Remove the tray from underneath the CMA as described in the CMA Installation Instructions 4 Disengage the strain relief and disconnect the power cord from the power supply 5 Disconnect both C...

Page 9: ...Cable Routing Procedures for Dell PowerEdge R620 Systems 9 Disconnecting the CMA attachment housings Figure 7 Replacing the outer power supply Figure 8 ...

Page 10: ...Instructions See Figure 9 for an example of data cables secured to the left outer CMA bracket and power cables secured to the right outer CMA bracket as viewed from the rear of the system Cable routing without a CMA Figure 9 3 2 Removing the outer CMA brackets for shallow racks If you are installing the system into a shallow rack less than 1 meter deep and you will not be installing a CMA the oute...

Page 11: ...n the rails are not accessible due to the depth of the system and or the spacing of the rack mounting flanges install the hook and loop straps onto the rack frame as shown in Figure 11 3 Connect all applicable cables to the rear of the system and verify that all connections are secure 4 Using the hook and loop straps bundle the cables and secure them to either the left rail or right rail as descri...

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