Dell PowerEdge R805 System User manual

Rack Installation Guide
Guide d'installation du rack
Rack-Installationsanleitung
ラック取り付けガイド
Guía de instalación del rack

Rack Installation Guide

Notes, Notices, and Cautions
NOTE: A NOTE indicates important information that helps you make better use
of your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data
and tells you how to avoid the problem.
CAUTION: A CAUTION indicates a potential for property damage, personal injury,
or death.
____________________
Information in this document is subject to change without notice.
© 2007 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly
forbidden.
Trademarks used in this text: Dell, the DELL logo, RapidRails, and VersaRails are trademarks
of Dell Inc.
ther 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 Inc. disclaims any proprietary interest in trademarks and
trade names other than its own.
August 2007 P/N HT118 Rev. A00

Contents 3
Contents
Safety Instructions . . . . . . . . . . . . . . . . . . . . 5
SAFETY: Rack Mounting of Systems . . . . . . . . . 5
General Installation Instructions . . . . . . . . . . . . . 6
Before You Begin . . . . . . . . . . . . . . . . . . . 7
Important Safety Information . . . . . . . . . . . . 7
Rack Requirements for VersaRails . . . . . . . . . . 7
Rack Stabilizer Feet . . . . . . . . . . . . . . . . . 8
Recommended Tools and Supplies . . . . . . . . . 8
Rack Kit Contents . . . . . . . . . . . . . . . . . . 8
Installation Tasks . . . . . . . . . . . . . . . . . . . 9
Removing the Rack Doors . . . . . . . . . . . . . . . . 10
Marking the Rack . . . . . . . . . . . . . . . . . . . . 10
Configuring the Sliding Rail Assemblies . . . . . . . . 12
Installing the Mounting Rails in the Rack . . . . . . . 14
Installing RapidRails Mounting Rails . . . . . . . . 14
Installing the VersaRails Mounting Rails . . . . . 15
Installing the System in the Rack . . . . . . . . . . . . 17
Removing the System From the Rack . . . . . . . 19
Installing the Cable-Management Arm . . . . . . . . . 19
Routing Cables . . . . . . . . . . . . . . . . . . . . . 21
Attaching the Cable-Management Arm Ramp
Assembly . . . . . . . . . . . . . . . . . . . . . . . . 22
Replacing the Rack Doors . . . . . . . . . . . . . . . 24

4Contents

Rack Installation Guide 5
Safety Instructions
Use the following safety guidelines to ensure your own personal safety and
to help protect your system and working environment from potential damage.
For complete safety and regulatory information, see the Product Information
Guide that shipped with your system. Warranty information might be
included in this document or as a separate document.
SAFETY: Rack Mounting of Systems
Observe the following precautions for rack stability and safety. Also refer to
the rack installation documentation accompanying the system and the rack
for specific caution statements and procedures.
Systems are considered to be components in a rack. Thus, "component" refers
to any system as well as to various peripherals or supporting hardware.
CAUTION: Before installing systems in a rack, install front and side stabilizers on
stand-alone racks or the front stabilizer on racks joined to other racks. Failure to
install stabilizers accordingly before installing systems in a rack could cause the
rack to tip over, potentially resulting in bodily injury under certain circumstances.
Therefore, always install the stabilizer(s) before installing components in the rack.
After installing system/components in a rack, never pull more than one component
out of the rack on its slide assemblies at one time. The weight of more than one
extended component could cause the rack to tip over and may result in serious
injury.
NOTE: Your system is safety-certified as a free-standing unit and as a component
for use in a Dell rack cabinet using the customer rack kit. The installation of your
system and rack kit in any other rack cabinet has not been approved by any safety
agencies. It is your responsibility to ensure that the final combination of system and
rack complies with all applicable safety standards and local electric code
requirements. Dell disclaims all liability and warranties in connection with such
combinations.
• System rack kits are intended to be installed in a rack by trained service
technicians. If you install the kit in any other rack, be sure that the rack
meets the specifications of a Dell rack.
CAUTION: Do not move racks by yourself. Due to the height and weight
of the rack, a minimum of two people should accomplish this task.

6Rack Installation Guide
• Before working on the rack, make sure that the stabilizers are secured to
the rack, extended to the floor, and that the full weight of the rack rests
on the floor. Install front and side stabilizers on a single rack or front
stabilizers for joined multiple racks before working on the rack.
• Always load the rack from the bottom up, and load the heaviest item in
the rack first.
• Make sure that the rack is level and stable before extending a component
from the rack.
• Use caution when pressing the component rail release latches and sliding
a component into or out of a rack; the slide rails can pinch your fingers.
• Do not overload the AC supply branch circuit that provides power to
the rack. The total rack load should not exceed 80 percent of the branch
circuit rating.
• Ensure that proper airflow is provided to components in the rack.
• Do not step on or stand on any component when servicing other
components in a rack.
General Installation Instructions
This installation guide provides instructions for trained service technicians
installing one or more systems in a rack cabinet. The RapidRails™
configuration can be installed without tools in manufacturer's rack cabinets
that have square holes; the VersaRails™ configuration can be installed in most
industry-standard rack cabinets that have square or round holes. One rack kit
is required for each system to be installed in the rack cabinet.

Rack Installation Guide 7
Before You Begin
Before you begin installing your system in the rack, carefully read "Safety
Instructions" on page 5, as well as the safety instructions found in your
Product Information Guide for additional information.
CAUTION: When installing multiple systems in a rack, complete all of the
procedures for the current system before attempting to install the next system.
CAUTION: Rack cabinets can be extremely heavy and move easily on their
casters. They do not have brakes. Use extreme caution while moving the rack
cabinet. Retract the leveling feet when relocating the rack cabinet. Avoid long
or steep inclines or ramps where loss of cabinet control may occur. Extend the
leveling feet for support and to prevent the cabinet from rolling.
NOTE: For instructions on installing the system itself, see "Installing the System
in the Rack" on page 17.
Important Safety Information
Observe the safety precautions in the following subsections when installing
your system in the rack.
CAUTION: You must strictly follow the procedures in this document to protect
yourself as well as others who may be involved. Your system may be very large
and heavy and proper preparation and planning are important to prevent injury
to yourself and to others. This precaution becomes increasingly important when
systems are installed high up in the rack.
CAUTION: Do not install rack kit components designed for another system. Use
only the rack kit for your system. Using the rack kit for another system may result in
damage to the system and personal injury to yourself and to others.
Rack Requirements for VersaRails
NOTICE: The VersaRails rack kit is intended to be installed by trained service
technicians in a rack that meets the specifications of American National Standards
Institute (ANSI)/Electronic Industries Association (EIA) standard ANSI/EIA-310-
D-92, International Electrotechnical Commission (IEC) 297, and Deutsche Industrie
Norm (DIN) 41494. One rack kit is required for each system that is installed in a rack.

8Rack Installation Guide
Rack Stabilizer Feet
CAUTION: Before installing systems in a rack, install front and side stabilizers on
stand-alone racks or the front stabilizer on racks joined to other racks. Failure to
install stabilizers accordingly before installing systems in a rack could cause the
rack to tip over, potentially resulting in bodily injury under certain circumstances.
Therefore, always install the stabilizer(s) before installing components in the rack.
The stabilizer feet help prevent the rack from tipping over. See the
documentation provided with the rack cabinet for instructions on installing
and anchoring the stabilizer feet.
Recommended Tools and Supplies
You may need the following items to install the system in a four-post rack
cabinet:
• #2 Phillips screwdriver
• Masking tape or a felt-tip pen, for use in marking the mounting holes
to be used
Rack Kit Contents
• One pair of slide assemblies
• One cable-management arm (optional)
• One left cable-management arm ramp assembly
• One right cable-management arm ramp assembly
• One status indicator cable (if applicable)
• Eight 10-32 x 0.5-inch flange-head Phillips screws
NOTE: The nonmetric screws described in illustrations and in procedural steps are
identified by size and number of threads per inch. For example, a #10 Phillips-head
screw with 32 threads per inch is identified as a 10-32 screw.
NOTE: Both the right and left cable-management arm ramp assemblies are
illustrated in Figure 1-1. Depending on the orientation of the cable-management arm
(CMA), you will only use one ramp assembly to secure the CMA to the back of the
rack. For more information, see "Attaching the Cable-Management Arm Ramp
Assembly" on page 22.

Rack Installation Guide 9
Figure 1-1. Rack Kit Contents
Installation Tasks
NOTE: Follow the steps for installing a Cable-Management Arm (CMA) if you
ordered a CMA with your system. If you did not order a CMA, Dell recommends that
you retain the documentation for installing this feature in the event that you choose
to order a CMA at a later time.
Installing a rack kit involves performing the following tasks (described
in detail in subsequent sections) in their numbered order:
1
Removing the rack doors
2 Marking the rack
3 Configuring the sliding rail assemblies
4 Installing the mounting rails in the rack
• RapidRails installation
• VersaRails installation
1 cable-management
arm (optional)
2 left cable-management
arm ramp assembly
3 right cable-
management arm ramp
assembly
4 slide assemblies 5 10-32 x 0.5-inch flange-
head Phillips screws (8)
6 status indicator cable
(if applicable)
1
6
423
5

10 Rack Installation Guide
5 Installing the system in the rack
6 Installing the cable-management arm
7 Routing cables
8 Attaching the cable-management arm ramp assembly
9 Replacing the rack doors
Removing the Rack Doors
See the procedures for removing doors in the documentation provided
with your rack cabinet.
CAUTION: Because of the size and weight of the rack cabinet doors,
never attempt to remove or install them by yourself.
CAUTION: Store the doors where they will not injure someone if the doors
accidently fall over.
Marking the Rack
For a 2-U system, you must allow 2 U (88 mm, or 3.5 inches) of vertical space
for each system you install in the rack.
Rack cabinets that meet EIA-310 standards have an alternating pattern of
three holes per rack unit with center-to-center hole spacing (beginning at the
top hole of a 1-U space) of 15.9 mm, 15.9 mm, and 12.7 mm (0.625 inch,
0.625 inch, and 0.5 inch) for the front and back vertical rails (see Figure 1-2).
Rack cabinets may have round or square holes.
NOTE: The vertical rails may be marked by horizontal lines and numbers in 1-U
increments. If you want, you can make a note of the number marking on the rack’s
vertical rail. It is not necessary to mark or place tape on the rack.

Rack Installation Guide 11
Figure 1-2. One Rack Unit
CAUTION: If you are installing more than one system, install the mounting rails
so that the first system is installed in the lowest available position in the rack.
To mark the rack, perform the following steps:
1
Place a mark (or tape) on the rack's front vertical rails where you want to
locate the bottom of the system you are installing in the rack. The bottom
of each 1-U space is at the middle of the narrowest metal area between
holes (marked with a horizontal line on some rack cabinets—see
Figure 1-3).
2 Place a mark 88 mm (3.5 inches) above the original mark you made
(or count up three holes in a rack that meets EIA-310 standards) and mark
the rack's front vertical rails with a felt-tipped pen or masking tape (if you
counted holes, place a mark just above the top hole). This mark or piece of
tape indicates where the system's upper edge will be located on the vertical
rails (see Figure 1-3).
1 U (44 mm [1.75 inches])
12.7 mm (0.5 inch)
15.9 mm (0.625 inch)
15.9 mm (0.625 inch)
12.7 mm (0.5 inch)

12 Rack Installation Guide
Figure 1-3. Marking the Vertical Rails
Configuring the Sliding Rail Assemblies
The sliding rail assembly has a rotating mounting bracket at each end of the
rail. The position of the bracket determines whether the rail assembly is used
as a RapidRail or a VersaRail. The RapidRail side of the bracket has a hook
and a latch that secure it to the vertical rail. The VersaRail side of the bracket
has three holes and uses screws to attach it to the vertical rail.
NOTE: The rack kit ships with the slide assemblies in the RapidRails configuration.
1 marks on vertical rail (2)
1

Rack Installation Guide 13
To change from one type of rail assembly to the other type of rail assembly:
1
Lift the blue lever on the rotating mounting bracket (see Figure 1-4).
2 Rotate the bracket and slide it up off of the two shoulder standoffs.
3 Continue to rotate the bracket 180 degrees until you can set the notches
back over the shoulder standoffs.
4 Rotate the bracket in the opposite direction until the bracket clicks into
place.
Figure 1-4. Changing the Position of the Rotating Mounting Bracket
1 mounting-bracket flange
(RapidRails version shown)
2 rotating bracket 3 release lever
4 shoulder standoffs (2) 5 notches (2)
1
43
5
2

14 Rack Installation Guide
Installing the Mounting Rails in the Rack
Installing RapidRails Mounting Rails
NOTE: Ensure that the rotating mounting brackets on the slide assemblies are
in the RapidRail configuration. See Figure 1-5.
1 At the front of the rack cabinet, position one of the mounting rails so that
its mounting-bracket flange fits between the marks or tape you placed
(or numbered locations) on the vertical rails in "Marking the Rack"
on page 10 (see Figure 1-5).
The top mounting hook on the front mounting-bracket flange should
enter the top hole between the marks you made on the vertical rails.
Figure 1-5. Installing RapidRails Mounting Rails
1 mounting hooks (4) 2 push buttons (2) 3 mounting rails (2)
front of rack
1
2
3

Rack Installation Guide 15
2 Push the mounting rail forward until the mounting hooks enter their
square holes, and then push down on the mounting-bracket flange until
the mounting hooks seat and the push button pops out and clicks
(see Figure 1-5).
3 At the back of the cabinet, pull back on the mounting-bracket flange until
the mounting hooks enter their square holes, and then push down on the
flange until the mounting hooks seat and the push button pops out and
clicks.
4 Repeat step 1 through step 3 for the mounting rail on the other side of
the rack.
NOTE: Ensure that the mounting rails are mounted at the same vertical
position on both sides of the rack.
Installing the VersaRails Mounting Rails
NOTE: Ensure that the rotating mounting brackets on the slide assemblies are
in the VersaRail configuration. See Figure 1-6.
1 At the front of the rack cabinet, position one of the mounting rails
so that its mounting-bracket flange fits between the marks you placed
(or numbered locations) on the vertical rails in "Marking the Rack"
on page 10 (see Figure 1-6).
The three holes on the front of the mounting-bracket flange should align
with the holes between the marks you made on the front vertical rail.
2 Install two 10-32 x 0.5-inch flange-head Phillips screws in the upper and
lower holes in the mounting-bracket flange to secure the mounting rail
to the front vertical rail.
3 At the back of the cabinet, pull back on the mounting-bracket flange until
the mounting holes align with their respective holes on the back vertical
rail.
4 Install two 10-32 x 0.5-inch flange-head Phillips screws in the upper and
lower holes in the mounting-bracket flange to secure the mounting rail
to the back vertical rail.
5 Repeat step 1 through step 4 for the mounting rail on the other side
of the rack.
NOTE: Ensure that the mounting rails are mounted at the same position
on the vertical rails on each side of the rack.

16 Rack Installation Guide
Figure 1-6. Installing VersaRails Mounting Rails
1 mounting-bracket
flange
2 10-32 x 0.5-inch flange-
head Phillips screws
(4 per mounting rail)
3 mounting rails (2)
front of rack
1
2
3

Rack Installation Guide 17
Installing the System in the Rack
CAUTION: If you are installing more than one system, install the first system
in the lowest available position in the rack.
CAUTION: Because of the size and weight of the system, never attempt to install
the system in the mounting rails by yourself.
1 Pull the two inner slide rails out of the rack until they lock in the fully
extended position.
2 Lift the system into position above the extended slides.
The three shoulder screws on the sides of the system fit into the
corresponding J-slots (see detail on Figure 1-7) on the inner slide
assemblies.
3 Lower the back of the system while aligning the back shoulder screws
on the sides of the system with the back J-slots on the slide assemblies.
4 Engage the back shoulder screws into their respective J-slots.
5 Lower the front of the system and fit the middle and front shoulder screws
into the J-slots in the slide assemblies.
The system release latch at the front of the inner slide rail will snap back as
the shoulder screw passes into the front slot. Use this system release latch
when you wish to remove the system from the slide assemblies.
6 Press the slide-release latch on the outside of each inner slide, then push
the system into the rack.
7 Install the cable-management arm. See "Installing the Cable-Management
Arm" on page 19.
8 Tighten the thumbscrews on the rack front panel to secure the slide
assemblies to the rack.

18 Rack Installation Guide
Figure 1-7. Installing the System in the Rack
1 slide-release latch 2 shoulder screws (6)
3 J slots (6) 4 front release latch
1
2
43