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.
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 Inc. disclaims any proprietary interest in trademarks and trade names other than its own
Installing the Mounting Rails in the Rack
Installing and Removing Chassis Static Rail Modules
Installing the System in the Rack
Installing the Releasable Tie Wraps
Removing the System From the Rack
Replacing the Rack Doors
Figure 1-13. Installing the Mounting Rails for Center-Mount
Configuration
. . . . . . . . . . . . . . . . . . . . . 23
Figure 1-14. Configuring the Adjustable Mounting Bracket
for Flush-Mount Installation
. . . . . . . . . . . . . 24
4Contents
Figure 1-15. Installing the Mounting Rails for Flush-Mount
Configuration
. . . . . . . . . . . . . . . . . . . . . 25
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 information,
see the
SAFETY: Rack Mounting of Systems
Observe the following precautions for rack stability and safety.
Systems are considered to be components in a rack. Thus, "component" refers to any system as well
as to various peripherals or supporting hardware.
Product Information Guide
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.
CAUTION: After installing 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 injure someone.
NOTE: Your system is safety-certified as a free-standing unit and as a component for use in a rack
cabinet using the customer rack kit when both the rack cabinet and rack kit were designed for your
system. 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 have the final combination of system and rack kit in a
cabinet evaluated for suitability by a certified safety agency. The manufacturer disclaims all warranties
and liability in connection with such combinations.
.
•System rack kits are intended to be installed in an approved rack by trained service
technicians. If you install the kit in any other rack, be sure that the rack meets the
specifications.
•Before working on the rack, make sure that the stabilizers are secured to the rack, 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.
•Do not overload the AC power 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 system/component when servicing other systems/components
in a rack.
Rack Installation Guide5
Installation Instructions
This installation guide provides instructions for trained service technicians installing one or more
systems in an open-frame relay rack or in a rack cabinet. The RapidRails™ rack kit can be installed
in all the system manufacturer's rack cabinets without tools, and the VersaRails™ rack kit can be
installed in most industry-standard rack cabinets. The procedures for installing both RapidRails
and VersaRails rack kits are similar. One rack kit is required for each system to be installed in the
rack cabinet.
This guide includes procedures for the following rack kits:
•RapidRails kit in a four-post rack cabinet
•VersaRails kit in a four-post rack cabinet
•Two-post kit (installed in either center-mount or flush-mount configuration)
Before You Begin
Before you begin installing your system in the rack, carefully read "Safety Instructions," found
earlier in this guide, as well as the safety instructions found in your
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.
Product Information Guide
NOTE: For instructions on installing the system itself, see "Installing the System in the Rack."
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.
6Rack Installation Guide
Four-Post Rack Installation
Before attempting this installation, read through this entire procedure carefully.
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 Installation Guide7
RapidRails Rack Kit Contents
•One pair of RapidRails mounting rails
•Releasable tie wraps (2) (not shown in Figure 1-1)
Figure 1-1. RapidRails Rack Kit Contents
mounting rails (2)
releasable tie wrap
attachment points (2)
VersaRails Rack Kit Contents
•One pair of VersaRails mounting rails
•10-32 x 0.5-inch flange-head Phillips screws (8)
•Releasable tie wraps (2) (not shown in Figure 1-2)
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.
8Rack Installation Guide
Figure 1-2. VersaRails Rack Kit Contents
mounting rails (2)
releasable tie wrap
attachment points (2)
10-32 x 0.5-inch flangehead Phillips screws (8)
Installation Tasks
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
Installing the mounting rails in the rack
•RapidRails installation
•VersaRails installation
•Static Rails Installation
4
Installing the system in the rack
5
Routing cables and securing with releasable tie wraps
6
Replacing the rack doors
NOTE: Three procedures are provided for task 3. These procedures are for the RapidRails kit,
the VersaRails kit, and the Static Rail kit.
Rack Installation Guide9
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 1-U system, you must allow 1 U (44 mm, or 1.75 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 1-3). 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.
Figure 1-3. One Rack Unit
1 U (44 mm or 1.75 inches)
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.
10Rack Installation Guide
12.7 mm (0.5 inch)
15.9 mm (0.625 inch)
15.9 mm (0.625 inch)
12.7 mm (0.5 inch)
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 1-4).
2
Place a mark 44 mm (1.75 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 felttipped 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 1-4).
Figure 1-4. Marking the Vertical Rails
tape on vertical rail
Rack Installation Guide11
Installing the Mounting Rails in the Rack
Installing the RapidRails Mounting Rails
1
At the front of the rack cabinet, position one of the RapidRails mounting rails so that its
mounting-bracket flange fits between the marks or tape you placed (or numbered location)
on the vertical rails (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.
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.
5
Ensure that the mounting rails are mounted at the same vertical position on both sides
of the rack.
12Rack Installation Guide
Figure 1-5. Installing the RapidRails Mounting Rails
mounting hooks (2)
push button
mounting rails (2)
front of rack
Installing the VersaRails Mounting Rails
1
At the front of the rack cabinet, position one of the VersaRails mounting rails so that its
mounting-bracket flange fits between the marks (or numbered location) on the vertical rails
(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 mounting-bracket flange's
top- and bottom-holes 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 back mounting-bracket flange's
top- and bottom-holes 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.
6
Ensure that the mounting rails are mounted at the same position on the vertical rails on
each side of the rack.
Rack Installation Guide13
Figure 1-6. Installing the VersaRails Mounting Rails
mounting-bracket flange
10-32 x 0.5-inch
flange-head Phillips
screws (4 per
mounting rail)
front of rack
Installing and Removing Chassis Static Rail Modules
NOTE: You do not need to remove the optional front bezel to install or remove the chassis static rail
modules from the chassis.
1
To install the rails, locate the J slots on both rails. Locate the two corresponding shoulder
screws that are on both sides of the chassis toward the front and midpoint (see Figure 1-7).
2
To attach the rails to the chassis, align the two J slots on the rail modules with the shoulder
screws. Position each rail directly below the two corresponding shoulder screws
(see Figure 1-7).
3
To seat the rails, pull up on the front latches attached to the front of each rail. Pull up
and back on each rail, snapping them into place on the chassis.
4
To remove the rails from the chassis, pull up on the front latches to release each rail.
5
Unseat the rails from the J slots and remove the rails from the chassis.
14Rack Installation Guide
rails modules (2)
Figure 1-7. Installing and Removing Static Rail Modules
rail modules (2)
front release latch
J slots (4)
shoulder screws (4)
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.
To install the system on the rack, perform the following procedure:
1
From the front of the system, lift the chassis into position so that the side rails are aligned
with the mounting rails on the rack.
Rack Installation Guide15
Figure 1-8. Installing the System in the Rack
back release latches (2)
system rails (2)
mounting rails (2)
2
Working from right to left, position the chassis on the mounting rails and slide back
(see Figure 1-8).
3
Push the chassis back into the mounting rails until the system stops (see Figure 1-8).
4
Secure both thumbscrews on the front panel of the chassis.
NOTE: Figure 1-8 applies to the RapidRails, VersaRails, and two-post rack kits.
16Rack Installation Guide
thumbscrews (2)
Installing the Releasable Tie Wraps
The two releasable tie wraps are used to secure your system’s cables to the mounting rails.
1
Locate the releasable tie wrap attachment points located on the two back mounting-bracket
flanges (see Figure 1-9).
Figure 1-9. Installing the Releasable Tie Wraps
mounting rails (2)
releasable tie wraps (2)
2
Push the tie wrap’s fastener through the attachment point.
3
Push the tie wrap’s plunger until it snaps to secure the tie wrap to the mounting rail.
4
Using the releasable tie wrap, secure your system’s cables to the mounting rail.
Rack Installation Guide17
Removing the System From the Rack
To remove the system from the rack, perform the following procedure:
NOTE: You do not need to remove the optional front bezel to install or remove the system from the rack.
1
Turn off the system and attached peripherals, and disconnect the system from the electrical
outlet.
2
Disengage the both thumbscrews on the front panel of the chassis.
3
On either side of the system, locate the back release latches.
4
Pull the system out of the rack until it stops, and then push down on both release levers
to actuate the side-rail safety catches (see Figure 1-8).
5
Pull the system completely out of the rack.
Replacing the Rack Doors
See the procedures for replacing doors in the documentation provided with your rack.
CAUTION: Because of the size and weight of the rack cabinet doors, never attempt to remove or install
them by yourself.
This completes the rack installation of your system in a four-post rack cabinet.
Two-Post Rack Installation
The two-post rack kit is used to install a system in a two-post, open-frame relay rack, such as those
found in telecommunications equipment facilities. Both 7.62-cm or 15.24-cm (3-inch and 6-inch)
wide two-post racks with universal hole spacing or wide hole spacing are accommodated. You can
install this kit in a center-mount or a flush-mount configuration.
You must properly secure the two-post relay rack to the floor, the ceiling or upper wall, and where
applicable, to adjacent racks, using floor and wall fasteners and bracing specified or approved by
the rack manufacturer or by industry standards. See the two-post rack manufacturer's
documentation for warnings before attempting this installation.
CAUTION: Do not attempt to install the system into a two-post, open-frame relay rack that has not been
securely anchored in place. Damage to the system and personal injury to yourself and to others may
result.
See "Safety Instructions" for additional safety information regarding rack installation.
18Rack Installation Guide
Recommended Tools and Supplies
•#2 Phillips screwdriver
•3/8-inch wrench or nut driver (if changing bracket to flush-mount configuration)
•Masking tape or felt-tip pen to mark the mounting holes
Rack Kit Contents
The two-post rack kit includes (see Figure 1-10):
•One pair of mounting rails
•12-24 x 0.5-inch pan-head Phillips screws (8)
•Releasable tie wraps (2) (not shown in Figure 1-10)
Installing a two-post rack kit includes performing the following tasks in order:
1
Marking the rack
•Universal-hole spacing rack
•Wide-hole spacing rack
2
Installing the mounting rails in the rack
•Center-mount installation
•Flush-mount installation
3
Installing the system in the rack
4
Routing cables
Marking the Rack
You must allow 1 U (44 mm, or 1.75 inch) of vertical space for each system that you install
in the two-post rack.
Universal-Hole Spacing Racks
Racks with universal-hole spacing 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 column of holes
(see Figure 1-11).
Racks with wide-hole spacing have an alternating pattern of two holes per rack unit with
center-to-center hole spacing (beginning at the top hole of a 1-U space) of 31.7 mm and 12.7 mm
(1.25 inches and 0.5 inch) for the front and back vertical columns of holes (see Figure 1-12).
Place a mark on the rack's front vertical rails where you want to locate the bottom of the
system you are installing in the two-post rack.
The bottom of each 1-U space is at the middle of the narrowest metal area between holes.
NOTE: If your rack has wide-hole spacing, go to step 3.
2
Place a mark 44 mm (1.75 inches) above the original mark you made (or count up three holes
in a rack with universal-hole spacing) (see Figure 1-11).
Each 1 U (44 mm, or 1.75 inches) of vertical space on a rack with universal-hole spacing has
three holes with center-to-center spacing between holes (beginning at the top 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) (see Figure 1-11).
NOTE: If your rack has universal-hole spacing, you have completed the procedure for marking
the rack.
3
Place a mark 44 mm (1.75 inches) above the original mark you made (or count up to the next
hole in the rack with wide-hole spacing (see Figure 1-12).
Each 1 U (44 mm, or 1.75 inches) of vertical space on a rack with wide-hole spacing has
two holes with center-to-center spacing between holes (beginning at the top of a 1-U space)
of 31.7 mm (1.25 inches) (see Figure 1-12).
Rack Installation Guide21
Installing the Mounting Rails
You can install the mounting rails in a two-post, open-frame rack having either universal-hole
spacing (see Figure 1-11) or wide-hole spacing (see Figure 1-12). You can install the mounting rails
in either a flush-mount or center-mount configuration.
CAUTION: Do not install another system using this rack kit. Use only the rack kit intended 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.
Center-Mount Installation
The two-post rack kit is shipped with the brackets configured for a 7.62-cm (3-inch) wide centermount installation. See Figure 1-10 for mounting rail components. To complete the installation,
perform the following steps:
1
Locate the right mounting rail and push the adjustable mounting bracket toward the back
of the mounting rail (see Figure 1-13).
2
Position the right mounting rail in the two-post rack at the location you marked, push the
center-mount adjustable mounting bracket forward against the vertical two-post rack, and
secure the mounting flange and adjustable mounting bracket to the rack with four
12-24 x 0.5-inch pan-head Phillips screws (see Figure 1-13).
3
Repeat step 1 and step 2 to install the left mounting rail in the rack.
22Rack Installation Guide
Figure 1-13. Installing the Mounting Rails for Center-Mount Configuration
two-post open-frame rack
12-24 x 0.5-inch pan-head
Phillips screws (4 per rail)
center-mount mounting flange
mounting
rails (2)
system rails (2)
release latch
Flush-Mount Installation
The two-post rack kit is shipped with the brackets configured for a 7.62-cm (3-inch) wide centermount installation. See Figure 1-10 for mounting rail components. To prepare the mounting rails
for flush-mount installation in the two-post rack, perform the following steps:
1
Locate the two mounting rails and place them side by side on a smooth work surface,
with the front ends of the mounting rails toward you (see Figure 1-14).
2
Using a 3/8-inch wrench or nut driver, remove two nuts from the adjustable mounting bracket
(see Figure 1-14).
3
Remove the bracket and then place the bracket on either the 7.62-cm or 15.24-cm
(3-inch or 6-inch) wide flush-mount threaded studs (see Figure 1-14).
Rack Installation Guide23
4
Using the two nuts that you removed in step 2, tighten the nuts finger tight to secure
the adjustable mounting bracket (see Figure 1-14).
5
Repeat step 2 through step 4 to configure the other mounting rail.
Figure 1-14. Configuring the Adjustable Mounting Bracket for Flush-Mount Installation
Holding the left mounting rail at the location you marked, position the flush-mount
mounting flange against the front of the vertical two-post rack and secure it to the two-post
rail with two 12-24 x 0.5-inch pan-head Phillips screws (see Figure 1-15).
7
Slide the adjustable-mounting bracket so that it is against the back of vertical two-post rack
and secure it to the two-post rail with two 12-24 x 0.5-inch pan-head Phillips screws
(see Figure 1-15).
8
Repeat step 6 and step 7 to install the right mounting rail in the rack.
9
Using a 3/8-inch wrench or nut driver, tighten the nuts on the adjustable mounting brackets
on both mounting rails.
24Rack Installation Guide
Figure 1-15. Installing the Mounting Rails for Flush-Mount Configuration
two-post open-frame rack
12-24 x 0.5-inch pan-head
Phillips screws (4 per rail)
mounting rails (2)
Rack Installation Guide25
Installing the System in the Rack
For instructions, see "Installing the System in the Rack" in "Four-Post Rack Installation."
Installing the Releasable Tie Wraps
For instructions, see "Installing the Releasable Tie Wraps" in "Four-Post Rack Installation."
You have completed the installation of the rack kit in a two-post rack.