Dell PowerEdge 2650 User manual

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Dell™ Systems
2-Post Rack Installation

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.
© 2002 Dell Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Trademarks used in this text: Dell, and the DELL logo are trademarks of Dell Computer Corporation.
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 Computer Corporation disclaims any proprietary interest in trademarks and trade names
other than its own.
August 2002 P/N 0X318 Rev. A00

Contents 3
Contents
CAUTION: Safety Instructions. . . . . . . . . . . . . . . . . . 1-1
Rack Mounting of Systems. . . . . . . . . . . . . . . . . . . 1-1
Installation Instructions . . . . . . . . . . . . . . . . . . . . . 1-2
Two-Post Rack Installation . . . . . . . . . . . . . . . . . . . . 1-3
Recommended Tools and Supplies . . . . . . . . . . . . . . . 1-3
Rack Kit Contents . . . . . . . . . . . . . . . . . . . . . . . 1-3
Two-Post Rack Installation Tasks . . . . . . . . . . . . . . . 1-4
Marking the Rack . . . . . . . . . . . . . . . . . . . . . . . 1-4
Installing the Slide Assemblies in the Rack. . . . . . . . . . . 1-6
Installing the System in the Rack . . . . . . . . . . . . . . 1-12
Installing the Cable-Management Arm. . . . . . . . . . . . 1-12
Routing Cables . . . . . . . . . . . . . . . . . . . . . . . 1-15
Figures
Figure 1-1. Two-Post Rack Kit Components . . . . . . . 1-4
Figure 1-2. Two-Post, Open-Frame Relay Rack
Universal-Hole Spacing . . . . . . . . . . . . 1-5
Figure 1-3. Two-Post, Open-Frame Relay Rack
Wide-Hole Spacing . . . . . . . . . . . . . . 1-5
Figure 1-4. Installing the Slide Assemblies for
Center-Mount Configuration . . . . . . . . . . 1-8
Figure 1-5. Rotating the Front Mounting Bracket for
Flush-Mount Installation . . . . . . . . . . . 1-10
Figure 1-6. Installing the Slide Assemblies for
Flush-Mount Configuration . . . . . . . . . . 1-11
Figure 1-7. Installing the Cable-Management Arm . . . . 1-13

4Contents
Figure 1-8. Installing the System Status Indicator
Cable . . . . . . . . . . . . . . . . . . . . 1-14
Figure 1-9. Routing the Power Cords . . . . . . . . . . 1-15
Figure 1-10. Routing Cables . . . . . . . . . . . . . . . 1-16

2-Post Rack Installation 1-1
CAUTION: Safety Instructions
Use the following safety guidelines to help ensure your own personal safety and to help
protect your system and working environment from potential damage. For complete safety
information, see the System Information Guide.
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.
CAUTION: Installing systems in a rack without the front and side stabilizers
installed could cause the rack to tip over, potentially resulting in bodily injury
under certain circumstances. Therefore, always install the stabilizers 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.
• 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.

1-2 2-Post Rack Installation
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Installation Instructions
This installation guide provides instructions for trained service technicians installing one or
more systems in an open-frame relay rack. One rack kit is required for each system to be
installed in the rack cabinet.
This guide includes procedures for the two-post kit (installed in either center-mount or
flush-mount configuration, for 3- or 6-inch-wide racks)
For ease in troubleshooting and the identification of system health, this rack kit includes a
status-indicator cable that extends the information on the two-color status indicators on
the front and back panels to the back of the cable-management arm. For more information
on these indicators, see your system User’s Guide.
Before attempting this installation, you should read through this entire document carefully.
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.
• 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.
• After a component is inserted into the rack, carefully extend the rail into a locking
position, and then slide the component into the rack.
• 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.
CAUTION: Safety Instructions (continued)

2-Post Rack Installation 1-3
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 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. The two-post kit
incorporates slide assemblies that enable the system to be pulled out of the rack for
servicing.
You must properly secure the two-post, open-frame 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, open-frame relay rack manufacturer’s installation documentation for
precautionary 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 "CAUTION: Safety Instructions" at the front of this document for additional safety
information regarding rack installation.
Recommended Tools and Supplies
You need the following tools and supplies to install the system in a two-post
open-frame relay rack:
• #2 Phillips screwdriver
• 11/32-inch wrench or nut driver (if changing to a flush-mount configuration)
• Masking tape or felt-tip pen to mark the mounting holes
Rack Kit Contents
The two-post rack kit includes the following items (see Figure 1-1):
• One pair of slide assemblies (two-post)
• One stiffening bracket
• One cable-management arm
• One status indicator cable

1-4 2-Post Rack Installation
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• +Twelve 12-24 x 0.5-inch pan-head Phillips screws
• Tie-wraps (not shown in Figure 1-1)
Figure 1-1. Two-Post Rack Kit Components
Two-Post Rack Installation Tasks
Installing a two-post rack kit includes performing the following tasks in their numbered
order:
1Marking the rack
2Installing the slide assemblies in the rack:
• Center-mount installation
• Flush-mount installation
3Installing the system in the rack
4Installing the cable-management arm
5Routing cables
Marking the Rack
You must allow 2 U (88 mm, or 3.5 inches) of vertical space for each system you install in
the two-post rack.
slide assemblies (2)
cable-management arm
status indicator cable
stiffening bracket
12-24 x 0.5-inch
pan-head
Phillips screw (12)

2-Post Rack Installation 1-5
Universal-Hole Spacing Racks
Industry-standard two-post racks with universal-hole spacing have an alternating pattern of
three holes per U 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 1-2).
Figure 1-2. Two-Post, Open-Frame Relay Rack Universal-Hole Spacing
Wide-Hole Spacing Racks
Some two-post racks with wide-hole spacing have an alternating pattern of two holes per U
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 column of holes (see
Figure 1-3).
Figure 1-3. Two-Post, Open-Frame Relay Rack Wide-Hole Spacing
44 mm (1.75 inches) (1 U)
15.9 mm (0.625 inch)
12.7 mm (0.5 inch)
15.9 mm (0.625 inch)
15.9 mm (0.625 inch)
44 mm (1.75 inches) (1 U)
12.7 mm (0.5 inch)
31.7 mm (1.25 inches)

1-6 2-Post Rack Installation
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To mark the rack, perform the following steps:
1Place 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.
2Place a mark 88 mm (3.5 inches) above the original mark you made (or count up six
holes in a rack with universal-hole spacing (see Figure 1-2).
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 0.625, 0.625, and 0.5 inches (see Figure 1-2).
NOTE: If your rack has universal-hole spacing, you have completed the procedure for
marking the rack.
3Place a mark 88 mm (3.5 inches) above the original mark you made (or count up to the
fourth hole in the rack with wide-hole spacing (see Figure 1-3).
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 1-3).
Installing the Slide Assemblies in the Rack
You can install the slide assemblies in a two-post open-frame rack having either universal-
hole spacing (see Figure 1-2) or wide-hole spacing (see Figure 1-3). You can install the 2-U
slide assemblies in either a flush-mount or center-mount configuration.
CAUTION: Do not attempt to 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.

2-Post Rack Installation 1-7
Center-Mount Installation
The two-post rack kit is shipped with the brackets configured for center-mount installation.
To complete the installation, perform the following steps:
1Locate the right slide assembly and push the back bracket toward the back of the slide
assembly (see Figure 1-4).
2Position the right slide assembly in the two-post rack at the location you marked, push
the back bracket forward against the vertical two-post rack, secure the front center-
mounting bracket with two 12-24 x 0.5-inch pan-head Phillips screws, and secure the
back center-mounting bracket to the rack with three 12-24 x 0.5-inch pan-head
Phillips screws (see Figure 1-4).
3Repeat steps 1 and 2 to install the left slide assembly in the rack.
4Install the stiffening bracket into the appropriate holes at the back of the slide
assemblies and secure the bracket with a 12-24 0.5-inch pan-head Phillips screw on
each slide assembly (see Figure 1-4).
If the vertical rack is 3 inches wide, use the holes at the back end of the slide
assemblies (shown in Figure 1-4). If the vertical rack is 6 inches wide, use the holes
located 3 inches in front of the holes at the back end of the slide assemblies.

1-8 2-Post Rack Installation
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Figure 1-4. Installing the Slide Assemblies for Center-Mount
Configuration
12-24 x 0.5-inch pan-
head Phillips screw
(5 per slide assembly)
two-post open-frame rack
slide assembly
slide release
latch (green)
nuts (2 per bracket)
system release
latch (yellow)
stiffening bracket
holes for stiffening
bracket with 6-inch racks
front bracket back bracket
holes for
stiffening
bracket with
3-inch racks

2-Post Rack Installation 1-9
Flush-Mount Installation
The two-post rack kit is shipped with the brackets configured for center-mount installation.
To prepare the slide assemblies for flush-mount installation in the two-post rack, perform
the following steps:
1Locate the two slide assemblies and place them, side by side, on a smooth work
surface, with the front ends of the slide assemblies toward you. Position both slide
assemblies so that the center brackets are facing upward (see Figure 1-5).
NOTE: To prepare the slides for flush-mount installation, remove the front
mounting bracket, rotate it 180 degrees, and reinstall it on the opposite slide
assembly.
2Using a #2 Phillips screwdriver and an 11/32-inch wrench or nut driver, remove two
12-24 x 0.5-inch pan-head Phillips screws, two nuts, and two shoulder washers from
each front center bracket (see Figure 1-5).
3Remove the front bracket from both slide assemblies.
4Place the bracket from one slide assembly onto the threaded studs on the opposite
slide assembly, with the bracket turned 180 degrees so that the mounting flange faces
forward (see Figure 1-5).
5Secure each front center-mount bracket (by its nuts and shoulder washers) by finger-
tightening them on their opposite slide assemblies using the two shoulder washers and
two nuts you removed in step 2 (see Figure 1-5).
The joined bracket becomes the new extended back bracket.
6Repeat steps 4 and 5 to configure the other slide assembly.

1-10 2-Post Rack Installation
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Figure 1-5. Rotating the Front Mounting Bracket for Flush-Mount
Installation
7Holding the left slide assembly into position in the two-post rack at the location you
marked, adjust the extended back bracket tightly against the vertical two-post rack and
secure it with three 12-24 x 0.5-inch pan-head Phillips screws (see Figure 1-6).
8Secure the front bracket on the slide assembly to the two-post rail with two
12-24 x 0.5- inch pan-head Phillips screws (see Figure 1-6).
9Perform steps 7 and 8 to install the right slide assembly in the rack.
10 Use an 11/32-inch wrench or nut driver to fully tighten the nuts on the mounting
brackets on both slide assemblies that you tightened with your fingers.
11 Install the stiffening bracket between the slide assemblies and secure the bracket with
a 12-24 0.5-inch pan-head Phillips screw on each slide assembly (see Figure 1-6).
If the vertical rack is 3 inches wide, use the holes at the back end of the slide
assemblies (shown in Figure 1-6). If the vertical rack is 6 inches wide, use the holes
located 3 inches in front of the holes at the back end of the slide assemblies.
nut (2 per bracket)
shoulder washer
(2 per bracket)
mounting
flange
12-24 x 0.5-inch pan-head Phillips screws
(remove 2 per bracket)
NOTE: These screws are shown reinstalled on
the other slide assembly.
12-24x0.5-inchpan-headPhillips
screws(install2perbracket)

2-Post Rack Installation 1-11
Figure 1-6. Installing the Slide Assemblies for Flush-Mount
Configuration
12-24 x 0.5-inch
pan-head Phillips
screws
(5 each slide)
two-post open-frame rack
slide assembly
slide release
latch (green)
system release
latch (yellow)
stiffening bracket
holes for stiffening
bracket with 6-inch racks
holes for
stiffening
bracket with
3-inch racks

1-12 2-Post Rack Installation
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Installing the System in the Rack
CAUTION: Due to the size and weight of the system, never attempt to install the
system by yourself.
NOTE: The procedure for installing a system into a rack is identical for flush-mount
and center-mount slide assemblies.
1Pull the slides out to their fully extended position.
CAUTION: Because of the size and weight of the system, never attempt to install
the system in the slide assemblies by yourself.
2Lift the system into position (see Figure 1-6).
3Place one hand on the front-bottom of the system and the other hand on the back-
bottom of the system.
4Tilt the back of the system down while aligning the back shoulder screws on the sides
of the system with the back slots on the slide assemblies.
5Engage the back shoulder screws into their slots.
6Lower the front of the system, and engage the front and middle shoulder screws in
their slots (the middle slot is behind the yellow system release latch) (see Figure 1-6).
When all shoulder screws are properly seated, the yellow latch on each slide assembly
clicks and locks the system into the slide assembly.
7Press up on the green slide release latch at the side of each slide to slide the system
completely into the rack (see Figure 1-6).
8Push in and turn the captive thumbscrews on each side of the front chassis panel to
secure the system to the rack.
NOTE: Use the yellow system release latch whenever you wish to remove the system
from the slide assemblies.
Installing the Cable-Management Arm
NOTICE: The cable-management arm can only be installed on the right side of the
rack cabinet (as viewed from the back).
To install the cable-management arm on the system, perform the following steps:
1Facing the back of the rack cabinet, locate the latch on the end of the slide assembly.
2Push the tab on the back end of the cable-management arm into the latch on the end
of the slide assembly (see Figure 1-7).
The latch clicks when locked.

2-Post Rack Installation 1-13
3Push the tab on the front end of the cable-management arm into a mating latch on
the inner segment of the slide assembly (see Figure 1-7).
The latch clicks when locked.
Figure 1-7. Installing the Cable-Management Arm
4Install the system status indicator cable plug into its connector (see Figure 1-8).
5Open the wire covers on the cable-management arm by lifting the center of the wire
over the top of the embossed round button on the front of the forward part of the arm
and lifting the wire over the top of a similar round button on the back part of the arm.
The wire cover swings open to enable cables to be routed within the arm.
latch on inner segment
of slide assembly
cable-management arm
latch on end of
slide assembly
tab on front end
tab on back end

1-14 2-Post Rack Installation
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6Route the system status indicator end of the cable through the cable-management
arm, and install the indicator in its slot at the back end of the cable-management arm
(see Figure 1-8).
Figure 1-8. Installing the System Status Indicator Cable
7Connect the power cords to their receptacles on the back panel (see Figure 1-9).
system status
indicator cable plug
wire covers in
open position
system status indicator

2-Post Rack Installation 1-15
Figure 1-9. Routing the Power Cords
CAUTION: Allow some slack in each cable as you route them around hinges in the
cable-management arm.
Routing Cables
1Attach the I/O cable connectors to their respective connectors on the system back
panel.
For details on cable connections, see your system’s Installation and Troubleshooting
Guide and the User’s Guide.
2Route the power and I/O cables through the cable-management arm, using four
loosely secured tie-wraps (two in the middle and one on each end of the cable-
management arm). Do not fully tighten the tie-wraps at this time (see Figure 1-10).
Allow some cable slack in the cable-management arm to prevent damage to the cables.
3Secure the cables to the cable-management arm:
aAfter connecting the cables to the system, unscrew the thumbscrews that secure
the front of the system to the front vertical rail.
bSlide the system forward to the fully extended position.
cRoute the cables along the cable-management arm, make any adjustments
needed to the cable slack at the hinge positions, secure the cables to the cable-
management arm with the tie-wraps, and close the wire covers over the
cable-management arm.
power cord plug
power receptacle housing

1-16 2-Post Rack Installation
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NOTE: As you pull the system out to its furthest extension, the slide assemblies
will lock in the extended position. To push the system back into the rack, press the
slide release latch on the side of the slide, and then slide the system completely
into the rack.
4Slide the system in and out of the rack to verify that the cables are routed correctly and
do not bind, stretch, or pinch with the movement of the cable-management arm.
5Tighten the tie-wraps just enough to ensure that the cable slack is neither too tight to
cause excessive pinching nor too loose, yet keep the cables from slipping as the system
is moved in and out of the rack.
Figure 1-10. Routing Cables
You have completed the installation of the rack kit in a two-post rack.
tie-wrap
tie-wrap
tie-wrap
tie-wrap