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Dell PowerEdge 2420 Technical Manual

Rack enclosures
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Dell PowerEdge
2420, 4220, and 4820
Rack Enclosures
Technical Guide
4820D
4820W
4220D
4220W
4820
4220
An expanded
portfolio of rack
enclosures designed
to meet the
requirements of your
data center today
and tomorrow.
2420

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  Summary of Contents for Dell PowerEdge 2420

  • Page 1 Dell PowerEdge 2420, 4220, and 4820 Rack Enclosures Technical Guide 4820D 4820W 4220D 4220W 4820 4220 2420 An expanded portfolio of rack enclosures designed to meet the requirements of your data center today and tomorrow.
  • Page 2 Dell, the DELL logo, the DELL badge, EqualLogic, PowerEdge, PowerVault, PowerConnect, and ReadyRails 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 and names of others.
  • Page 3: Table Of Contents

    Comparison of PowerEdge rack enclosures ....................8 Table 5. Blanking panel options ............................22 Table 6. Rack accessories for Dell rack enclosures ..................... 27 Table 7. Packaging options for Dell rack enclosures ....................28 Table 8. Additional resources ............................37 Figures Figure 1.
  • Page 4 Figure 10. Vertical- mount power distribution unit trays ....................16 Figure 11. Casters and leveling feet ............................ 16 Figure 12. Stabilizer feet ................................ 17 Figure 13. Front, side, and rear latches and locks ......................17 Figure 14. Adjustable vertical mounting posts ........................19 Figure 15.
  • Page 5: System Overview

    Built with adjustable vertical mounting posts within the rack, Dell racks are designed for use in almost any environment, such as an Enterprise data center, a high- performance computing center, a remote office, a wiring closet, or a factory floor.
  • Page 6 Wide (750mm) racks in both 42U and 48U heights have three inches more space on each side for cables and PDUs for networking, blade server and other installations that need to route cables along the sides. The wide design of the 4820W and 4220W also moves the PDU trays even farther away from the rack mounting posts, allowing more room for cables in the sides and back, helping reduce contention between power cords, cables and installed equipment.
  • Page 7: Rack Enclosure Features

    Rotating rear casters to easily position rack • Easily accessible leveling feet Rack color Black with aluminum accents All Dell and third- party rack- mount equipment compliant to the EIA- 310- E Products supported standard PowerEdge Rack Enclosures Technical Guide...
  • Page 8: Comparison Of Poweredge Rack Enclosures

    Shipping options Air freight container Comparison of PowerEdge rack enclosures Table 4 compares the basic specifications of the rack enclosure portfolio. Table 4. Comparison of PowerEdge rack enclosures Features Dell 2420 Dell 4220/4820 Dell 4220W/4820W Dell 4220D/4820D U Spaces 42U/48U...
  • Page 9: Rack Enclosure Views And Features

    Enterprise efficiency for all sizes of data centers, while the PowerEdge 2420 rack enclosure provides a compact option. PowerEdge 2420 rack enclosures The PowerEdge 2420 rack enclosure is very similar to its larger family members, but does have some specific differences. •...
  • Page 10: Poweredge 4220 And 4820 Rack Enclosures

    Figure 2. Top view of the 2420 rack enclosure PowerEdge 4220 and 4820 rack enclosures The PowerEdge 4220 and 4820 rack enclosures have identical features except the 4820 rack enclosure adds 6U of height. • 42U and 48U heights are available in standard (600mm x 1070mm), wide (750mm x 1070mm) and deep (600mm x 1200mm) form factors.
  • Page 11: Figure 4. Back View Of The 4220 Rack Enclosures

    Dell rack enclosures have faster and easier access to the rear of rack with a single latch for both doors. All of the 42U and 48U racks have two- piece side panels for easier removal and access to the sides of the IT equipment and cables, as well as a split rear door design that includes a single latch mechanism.
  • Page 12: Figure 5. Back View Of The 4820 Rack Enclosures

    4820D 4820W Figure 5. Back view of the 4820 rack enclosures 4220D 4220, 4220W Figure 6. Side view of the 4220 rack enclosures PowerEdge Rack Enclosures Technical Guide...
  • Page 13: Figure 7. Side View Of The 4820 Rack Enclosures

    4820D 4820, 4820W Figure 7. Side view of the 4820 rack enclosures PowerEdge Rack Enclosures Technical Guide...
  • Page 14: Figure 8. Top View Of The Rack Enclosures

    Top canopy knock- outs and adjustable rear- of- rack sliding cable exit door enable cabling from above. The rack’s large open base and removable side panels offer more options for cable access. The basic design of the canopy is similar between the three form factors, as shown in Figure 8. Standard Deep Wide...
  • Page 15: Rack Interior Features

    Dell vertical mount PDUs are available in a number of sizes and can be combined within a rack. For more information, see the Rack kit accessories section.
  • Page 16: Figure 10. Vertical-Mount Power Distribution Unit Trays

    Standard Deep Wide Figure 10. Vertical-mount power distribution unit trays Rack stability and security Each rack includes rotating rear casters for better maneuverability when positioning the rack in the data center. The leveling feet are easily accessible to facilitate firm placement. Standard Deep Wide...
  • Page 17: Figure 12. Stabilizer Feet

    Lockable side panels and front and rear doors provide security for data centers, remote offices, wiring closets, factory floors and other server environments. Front and rear door locks and side panel locks are keyed alike for easier opening; different lock sets can be provided through Dell S&P if needed.
  • Page 18: Thermal And Airflow Considerations

    4 Thermal and airflow considerations Dell rack enclosures are designed for maximum airflow and the reduction of thermal issues, which means greater efficiency and power savings for your data center. Thermal and airflow features The front and rear doors have 80% perforation to allow air to move through the rack with minimal resistance, and flexible air dams help keep hot air from recirculating from the back to the front, alleviating a problem common in many racks.
  • Page 19: Installing Rack Enclosures

    5 Installing rack enclosures Dell rack enclosures are compliant to EIA/ECA- 310- E and IEC 60297- 3- 100 design specifications. Dell racks use the square- hole design and are compatible with Dell and third- party rack- mount systems. Adjustable mounting posts Dell racks have four adjustable vertical mounting posts to enable flexibility of the location of IT equipment within the rack;...
  • Page 20: Figure 15. Readyrails Ii And Readyrails Mounting Kits

    racks. Sliding rails require an adapter bracket for installation in threaded- hole racks. Other products including rack- mount UPS systems, KVMs, and the 1U equipment shelf also use the ReadyRails interface. With the 12 generation servers, the rack/rail interface for the sliding rails has been updated to the ReadyRails™...
  • Page 21: Cable Management Arm (Cma)

    Cable management arm (CMA) The optional cable management arm (CMA) for the sliding rails organizes and secures the cords and cables exiting the back of the server and unfolds to allow the server to extend out of the rack for service without having to detach the cables.
  • Page 22: Rack Kit Accessories

    Threaded- hole Fans Dell offers three rack fans that can be installed in the top of the 42U and 48U racks to facilitate the movement of air through the upper canopy. The options are 120V, 208V, and 230V to handle different voltage requirements.
  • Page 23: Power Solutions

    Dell PDUs come in several form factors. One and zero rack unit (1U/0U) PDU models can be placed in a 1U rack space with other rack- mount equipment or in the side of some racks. Dell also offers vertical PDUs in half- height length for all Dell racks, full- height for 42U/48U racks, and extended- height for 48U racks, providing the flexibility to select the right PDU for the equipment in the rack.
  • Page 24: Management Solutions

    Similar to the Dell servers and UPS, the KVM can be easily mounted into a 1U space in the front or back of a Dell rack using a tool- less ReadyRails kit. Dell offers both analog and remote switches, all of which are Trade Agreement Act (TAA)- compliant.
  • Page 25 CAC (Common Access Card) capability, true serial support, and multiple USB ports. Users can manage Dell KVM switches and perform all KVM functions on LAN or WAN with the easy- to- use client software and remote/local on- board web interface (OBWI), and easily update and install firmware, applications, and operating systems either locally or remotely by using virtual media (VM) or local USB.
  • Page 26: Additional Accessories

    Additional accessories Equipment shelf For components that do not come with rails for rack- mounting installation, Dell offers the 1U fixed equipment shelf that installs tool- lessly into square- hole or unthreaded round- hole racks using the ReadyRails mounting interface. The rail design for the shelf also supports tooled installation in four- post and two- post threaded- hole racks for added versatility.
  • Page 27: Accessory Compatibility Table

    Accessory compatibility table Table 6 provides a reference table to show which Dell rack accessories are compatible with the various rack enclosures. The power and management accessories noted in the previous sections are compatible with all of the offerings in this generation of racks.
  • Page 28: Rack Packaging Options

    Dell rack enclosures are available for ground or air shipment. Dimensions and weights for each option are shown in Table 7. All Dell racks can be shipped in full configuration with frame, doors, and sides, or in reduced configuration with frame and doors. The 2420 and 4220 standard racks are also available as frame only.
  • Page 29: Mechanical Drawings

    8 Mechanical drawings This section contains the basic external and internal drawings for each of the rack form factors. Figure 17. External dimensions – 4820 rack enclosure Figure 18. External dimensions – 4220 rack enclosure PowerEdge Rack Enclosures Technical Guide...
  • Page 30: Figure 19. External Dimensions - 2420 Rack Enclosure

    Figure 19. External dimensions – 2420 rack enclosure Note: For Detail A, Detail B, and Detail C views, see Figure 21. Figure 20. Internal dimensions – 2420, 4220, 4820 (top and bottom views) PowerEdge Rack Enclosures Technical Guide...
  • Page 31: Figure 21. Internal Dimensions - 2420, 4220, 4820 (Leveling Foot/Minimum Clearance)

    Figure 21. Internal dimensions – 2420, 4220, 4820 (leveling foot/minimum clearance) Figure 22. External dimensions – 4820D rack enclosure PowerEdge Rack Enclosures Technical Guide...
  • Page 32: Figure 23. External Dimensions - 4220D Rack Enclosure

    Figure 23. External dimensions – 4220D rack enclosure Note: For Detail A, Detail B, and Detail C views, see Figure 25. Figure 24. Internal dimensions – 4220D and 4820D (top and bottom views) PowerEdge Rack Enclosures Technical Guide...
  • Page 33: Figure 25. Internal Dimensions - 4220D And 4820D (Leveling Foot/Minimum Clearance)

    Figure 25. Internal dimensions – 4220D and 4820D (leveling foot/minimum clearance) Figure 26. External dimensions – 4820W rack enclosure PowerEdge Rack Enclosures Technical Guide...
  • Page 34: Figure 27. External Dimensions - 4220W Rack Enclosure

    Figure 27. External dimensions – 4220W rack enclosure Note: For Detail A, Detail B, and Detail C views, see Figure 29. Figure 28. Internal dimensions – 4220W and 4820W (top and bottom views) PowerEdge Rack Enclosures Technical Guide...
  • Page 35: Figure 29. Internal Dimensions - 4220W And 4820W (Leveling Foot/Minimum Clearance)

    Figure 29. Internal dimensions – 4220W and 4820W (leveling foot/minimum clearance) PowerEdge Rack Enclosures Technical Guide...
  • Page 36: Appendix A. Regulatory Certifications

    Appendix A. Regulatory certifications The Dell rack enclosure meets the requirements of the Underwriters Laboratories (UL) Standard 60950- 1 when properly installed according to the instructions provided in the Rack Installation Guide . The stabilizer feet help prevent the rack from tipping over when a system or other component is pulled out of the rack with the slide assemblies fully extended.
  • Page 37: Appendix B. Documentation And Resources

    Rack Installation Guide A single is provided in the packaging for all Dell rack enclosures. Please refer to this document for details on removing and replacing the doors and side panels. You can also find rack installation guides and helpful white papers at the following location: http://support.dell.com/support/edocs/systems/racks/en/index.htm.