Cable Routing Procedures for Dell PowerEdge R720/R720xd Systems Cable Routing Procedures for Dell™ PowerEdge™ R720/R720xd Systems This Dell Technical White Paper explains the best practices for routing and securing the cables exiting the back of the R720/R720xd systems. Greg Henderson and Jose L.
Cable Routing Procedures for Dell PowerEdge R720/R720xd Systems This document 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. © 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.
Cable Routing Procedures for Dell PowerEdge R720/R720xd Systems Contents Introduction ............................................................................................................. 4 Section 1: Cabling a PowerEdge R720/R720xd with a CMA ...................................................... 4 1.1. Connecting the cables to the system ................................................................... 4 1.2. Routing the power cables through the strain reliefs ...............................
Cable Routing Procedures for Dell PowerEdge R720/R720xd Systems Introduction This white paper covers recommended cable routing procedures for the Dell™ PowerEdge™ R720/R720xd systems in the following racks: PowerEdge 2410, 4210 PowerEdge 2420, 4220, 4820 (including wide and deep versions) PowerEdge Energy Smart 4020S, 4620S If you are using the optional cable management arm (CMA), following these procedures will allow you to extend the system from the rack for service without powering down or disco
Cable Routing Procedures for Dell PowerEdge R720/R720xd Systems 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. Installing the CMA The CMA can be installed on either the rear right or rear left side of the rails as described in the CMA Installation Instructions.
Cable Routing Procedures for Dell PowerEdge R720/R720xd Systems 1.3.2. Left-side mounting instructions 1. Install the CMA on the rear left side of the rails by attaching both CMA housings to the attachment brackets on the rails. 2. Route the cables through the CMA while avoiding twisting the cables. Use the hook-and-loop straps on the CMA to secure the cables. 3.
Cable Routing Procedures for Dell PowerEdge R720/R720xd Systems Figure 5. Left-side mounted CMA installation (preferred) 1.3.3. Right-side mounting instructions 1. Install the CMA on the rear right side of the rails by attaching both CMA housings to the attachment brackets on the rails. 2. Route the cables through the CMA while avoiding twisting the cables. Use the hook-and-loop straps on the CMA to secure the cables. 3.
Cable Routing Procedures for Dell PowerEdge R720/R720xd Systems Figure 6. Right-side mounted CMA installation (CMA shown in service position) KVM SIP placed outside the basket for right-side mounting. Section 2: Replacing a power supply on a PowerEdge R720/R720xd system with a CMA 2.1. Replacing a power supply with a left-side mounted CMA 1. Swing the CMA to its service position as described in the CMA Installation Instructions provided with the CMA kit. 2.
Cable Routing Procedures for Dell PowerEdge R720/R720xd Systems 4. Disengage the strain relief and disconnect the power cord from the power supply. 5. Disconnect both CMA attachment housings from the brackets on the rails as shown in Figure 7. 6. Detach the inner CMA bracket from the rail by pushing on the end of the lock spring and lifting the bracket up and to the left until it clears the standoffs on the rail. 7.
Cable Routing Procedures for Dell PowerEdge R720/R720xd Systems Section 3: Cabling a PowerEdge R720/R720xd system on sliding rails without a CMA NOTE: The CMA for Dell PowerEdge R720/R720xd systems is optional. Without the CMA installed, the system must be powered down and all cables disconnected before it can be extended out of the rack. 3.1. Routing the cables 1. Connect all applicable cables to the rear of the system and verify that all connections are secure. 2.
Cable Routing Procedures for Dell PowerEdge R720/R720xd Systems Section 4: Cabling a PowerEdge R720/R720xd system installed on static rails NOTE: The CMA is compatible only with the sliding rails, not the static rails. 1. Follow the instructions contained in the Rack Installation Instructions found in the static rail kit to install the server into a two-post or four-post rack. 2.
