NEC NEC Express5800 Series User manual

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Site Preparation
Guide
EXPRESS5800/1080Xd/1160Xd/1320Xd

Proprietary Notice and Liability Disclaimer
The information disclosed in this document, including all designs and related materials, is
the valuable property of NEC Solutions (America), Inc. and/or its licensors. NEC Solutions
(America), Inc. and/or its licensors, as appropriate, reserve all patent, copyright and other
proprietary rights to this document, including all design, manufacturing, reproduction, use,
and sales rights thereto, except to the extent said rights are expressly granted to others.
The NEC Solutions (America), Inc. product(s) discussed in this document are warranted in
accordance with the terms of the Warranty Statement accompanying each product.
However, actual performance of each product is dependent upon factors such as system
configuration, customer data, and operator control. Since implementation by customers of
each product may vary, the suitability of specific product configurations and applications
must be determined by the customer and is not warranted by NEC Solutions (America), Inc.
To allow for design and specification improvements, the information in this document is
subject to change at any time, without notice. Reproduction of this document or portions
thereof without prior written approval of NEC Solutions (America), Inc. is prohibited.
Trademarks
All product, brand, or trade names used in this publication are the trademarks or registered
trademarks of their respective trademark owners.
PN: 456-01682-000 October 2003
Copyright 2003
NEC Solutions (America), Inc
10850 Gold Center Drive, Suite 200,
Rancho Cordova, CA 95670
All Rights Reserved

Contents iii
Contents
Using This Guide .......................................................................................................1
Who Should Use This Guide .....................................................................................1
Symbols and Conventions..........................................................................................1
Safety Notices ............................................................................................................2
Safety Notices for Users Outside of the U.S.A. and Canada .............................3
If You Need Help.......................................................................................................3
Site Planning Overview..............................................................................................4
Choosing the Server Location............................................................................4
Customer Responsibilities..................................................................................4
NEC Responsibilities .........................................................................................5
Facility Requirements ................................................................................................6
Delivery Requirements.......................................................................................6
Operational Space Requirements .......................................................................7
Clearance and Access Guidelines ......................................................................8
Floor Loading.....................................................................................................8
Raised Floor Loading................................................................................8
Non-raised Floor .......................................................................................9
Electrical Requirements...........................................................................................10
System Power Requirements............................................................................11
Computer Input Power Conditions...................................................................12
Input Power Specifications......................................................................12
Grounding Conditions......................................................................................13
Grounding................................................................................................13
Environmental Requirements...................................................................................14
Air Flow ...........................................................................................................15

Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide 1
Using This Guide
This guide contains information that helps you prepare your site for the installation of an
Express5800/1000 Series server. By following these site preparation guidelines, you can
help ensure a smooth and successful installation of your server. This guide is intended for
system administrators and facilities personnel who are preparing the site for installation of
an Express5800/1080Xd, 1160Xd, or 1320Xd Server.
Proper site preparation and maintenance are vital to the reliability of any computer system.
As our customer, it is your responsibility to ensure that the proper facility resources and
conditions are maintained. This will allow us to provide support services in accordance
with the NEC “ServerCare Service Warranty Program.”
This guide includes:
!A site planning overview
!Facility requirements
!Electrical requirements
!Environmental requirements.
Who Should Use This Guide
This guide is intended for system administrators and facilities personnel who are preparing
the site for an Express5800/1000 Series server installation.
Symbols and Conventions
This guide uses the following text conventions and graphics symbols.
Warnings, cautions, and notes have the following meanings:
!
WARNING
Warnings alert you to situations that could result in serious personal injury or loss
of life.
!
CAUTION
Cautions indicate situations that can damage the system hardware or software.
Note: Notes give important information about the material being described.

2 Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide
Safety Notices
!
WARNING
To avoid a risk of injuries, installation should be performed by trained technical
personnel.
It takes two to three people to unpack your server and two people to maneuver
the server, after unpacking. A tall rack is quite unstable, especially when not
fixed by stabilizers.
Your server is equipped with a front stabilizer. Engage the front stabilizer
during installation. For stability and to distribute the weight, also attach side
stabilizers or install two or more racks together. Otherwise, the rack may
topple over and cause injuries.
If you extend two or more devices from the rack at the same time, the rack may
topple over on you. Extend only one device from the rack at a time.
Exercise great care not to hurt your fingers on the rails when you
mount/dismount the equipment into/from the rack.
!Elevated Operating Ambient Temperature – If installed in a closed or multi-unit
rack assembly, the operating ambient temperature of the rack environment may
be greater than the room ambient environment. Therefore, consideration should
be given to installing the equipment in an environment compatible with a
maximum rated ambient temperature of 35°C.
!Reduced air Flow – Installation of the equipment in a rack should be such that
the amount of air flow required for safe operation of the equipment is not
compromised.
!To prevent fires, and damage to rack equipment and supply wiring, make sure
that the rated load of the power branch circuit is not exceeded. Equipment
nameplate ratings should be used when addressing this concern. For more
information on installation and wiring of power-related facilities, contact your
electrician or local power company.
!To prevent electrical shock, connect all rack and rack support equipment to the
same electrical circuit of the building wiring. If you are unsure, check the
building wiring to avoid remote earth conditions.
!For safe operation, only connect the equipment to a building supply that is in
accordance with current wiring regulations in your country. In the USA those
wiring standards are regulated by Underwriter Laboratories (UL); in the U.K., by
the Institution of Electrical Engineers, (IEE) and in Canada by the Canadian
Standards Association (CSA).

Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide 3
Safety Notices for Users Outside of the U.S.A. and Canada
!PELV (Protected Extra-Low Voltage) Integrity: To ensure the extra-low
voltage integrity of the equipment, connect only equipment with mains-protected
electrically-compatible circuits to the external ports.
!Remote Earths: To prevent electrical shock, connect all local (individual office)
computers and computer support equipment to the same electrical circuit of the
building wiring. If you are unsure, check the building wiring to avoid remote
earth conditions.
!Earth Bonding: For safe operation, only connect the equipment to a building
supply that is in accordance with current wiring regulations in your country. In
the USA those wiring standards are regulated by Underwriter Laboratories (UL);
in the U.K., by the Institution of Electrical Engineers, (IEE) and in Canada by the
Canadian Standards Association (CSA).
If You Need Help
Contact NEC Technical Support at 1-866-269-1239.

4 Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide
Site Planning Overview
Choosing the Server Location
You need to be aware of the following requirements whether you are providing computer-
room space or other properly prepared space for your server:
!Locate the server away from high-traffic areas and potential impacts. High-traffic
areas include patch panels, experimental equipment, or equipment that needs
frequent physical reconfiguration.
!Choose a location where the server will be free from significant temperature or
humidity changes, or possible damage from moisture.
!Locate the server in a clean environment, free from smoke and dust.
!Verify that the location you select has a sturdy, level floor, and is not subject to
vibration. The rack holding the server must be stable during normal operation
and service.
!Make sure the server has adequate space in front of and behind the rack for times
when service or reconfiguration is necessary. If the rack has a door, it must be
able to open completely to allow access to the front and rear panels of the server.
!Make sure there is adequate power and the correct receptacle type for each server
component, the rack power strips, and the UPSs. Do not use extension cords to
plug in any of the server components.
Customer Responsibilities
You are responsible for scheduling, planning, and preparing a suitable environment for the
installation and operation of the Express5800/1000 Series server.
The server models described in this guide are primarily designed to be installed and
operated in a computer room (controlled) environment. If large scale servers are new to
your site, you will need to pay particular attention to the following items:
!Local building codes
!Local electrical codes
!Local safety codes
!Space and weight limitations and server accessibility
!Environmental requirements (temperature, humidity, etc.)
!Electrical and grounding requirements.

Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide 5
If your Server is to be installed in an existing computer room, you should analyze and
integrate the following items into the site plan:
!Available space
!Additional environmental requirements
!Additional electrical requirements.
NEC Responsibilities
NEC will install your Express5800/1000 Series server, including:
!Moving all server cabinet containers and accessory boxes shipped with the server
to the intended installation site
!Unpacking the Express5800/1000 Series server and any accessory boxes
!Inspecting the server for any shipping damage
!Installing all accessory components including hard disk drives and cabinet
stabilizers
!Powering up, configuring and running server test/diagnostics.

6 Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide
Facility Requirements
This section contains information about clearance and space requirements for your
Express5800/1000 Series server. This data should be used as the basic guideline for space
plan developments. Other factors, such as airflow, lighting, and power requirements must
also be considered.
Delivery Requirements
There should be enough clearance to move equipment safely from the receiving area to the
computer room. Permanent obstructions, such as pillars or narrow doorways, can cause
equipment damage. Packaging dimensions for the system cabinet(s) determine whether all
paths from the receiving area to the installation site are wide enough, whether all doorways
are tall enough, and whether elevator door size and weight restrictions can support passage
of the system cabinets.
Before moving equipment, study the route it will take, from the receiving area to the
installation site. Take measurements to ensure problem-free transport of equipment.
Consider the following factors:
!Height, width, and location of doors
!Size, capacity, and availability of an elevator
!Width of passageways from receiving area to installation area
!Passageway restrictions (bends, slopes, or obstructions)
!Floor loading and floor and wall covering protectors
!Fire code restrictions for entryways and exits for the site.
Table 1 lists the dimensions for the system cabinets including the packaging and the
shipping pallet.
Table 1. Packaged Server Cabinets Dimensions
Express5800/
System Width Depth Height
1320Xd Main Cabinet 43.0 in
109.20 cm
50.9 in
129.2 cm
80.0 in
204.0 cm
1160Xd Main Cabinet 43.0 in
109.20 cm
50.9 in
129.2 cm
80.0 in
204.0 cm
1320Xd/1160Xd
Expansion Cabinet
43.0 in
109.20 cm
50.9 in
129.2 cm
80.0 in
204.0 cm
1080Xd Cabinet 40.0 in
101.6 cm
51.0 in
129.5 cm
64.0 in
162.6 cm

Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide 7
Operational Space Requirements
Proper clearance around the cabinets must be provided for proper cooling airflow and
service of the system. Reduced airflow around equipment causes overheating, which can
lead to equipment failure. Therefore, the location and orientation of air conditioning ducts,
as well as airflow direction, are important. Obstructions to equipment intake or exhaust
airflow must be eliminated.
The locations of lighting fixtures and utility outlets affect servicing operations. Plan
equipment layout to take advantage of lighting and utility outlets. Do not forget to include
clearance for opening and closing equipment doors.
When considering the server service area space requirements, if other equipment is located
so that it exhausts heated air near the cooling air intakes of the computer system cabinets,
larger space requirements are needed to keep ambient air intake to the computer system
cabinets within the specified temperature and humidity ranges.
Space planning should also include the possible addition of equipment or other changes in
space requirements. Equipment layout plans should also include access provisions for the
following:
!Routing data and power cables
!Air conditioning ducts, filters, lighting, and electrical power hardware
!Power conditioning equipment
!Cleaning and maintenance of cabinets.
Table 2 lists the dimensions for the unpacked system cabinets.
Table 2. Unpacked Server Cabinet Dimensions
Express5800/
System Width Depth Height
1320Xd Main Cabinet 23.6 in
60.0 cm
40.9 in
104.0 cm
70.9 in
180.0 cm
1160Xd Main Cabinet 23.6 in
60.0 cm
40.9 in
104.0 cm
70.9 in
180.0 cm
1320Xd/1160Xd
Expansion Cabinet
23.6 in
60.0 cm
40.9 in
104.0 cm
70.9 in
180.0 cm
1080Xd Cabinet 24.0 in
61.0 cm
39.0 in
99.0 cm
50.0 in
127.0 cm

8 Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide
Clearance and Access Guidelines
For normal operation, you’ll need to maintain approximately 2 feet (0.6 meters) of open
space in front of and behind the rack. This allows free access to the components in the rack
for operating changes or adjustments.
For service, you’ll need approximately 3 feet (1.0 meters) of open space in front of the rack
and 2 feet (0.6 meters) of open space behind the rack. This allows for the removal of any
component that needs to be replaced.
The left and right sides of the server cabinets, when not adjacent to other cabinets, should
have an open space of about 19 inches (0.5 meters).
For normal operation, you’ll need to maintain approximately 3 feet (1.0 meters) of open
space above the rack for proper ventilation.
Floor Loading
The computer room floor must be able to support the total weight of the installed computer
system as well as the weight of the individual cabinets as they are moved into position.
Floor loading is usually not an issue in non-raised floor installations, unless this floor is
located in a very old building.
Note: Any floor system under consideration for an Express5800/1000
Series server installation should be verified by an appropriate floor load-
bearing consultant.
Raised Floor Loading
Raised floor loading is a function of the manufacturer’s load specification and the
positioning of the equipment relative to the raised floor grid. While NEC cannot assume
responsibility for determining the suitability of a particular raised floor system, it does
provide information for the customer or local agencies to determine installation
requirements.
The following guidelines are recommended:
!Because many raised floor systems do not have grid stringers between floor
stands, the lateral support for the floor stands depends on adjacent panels being
in place. To avoid compromising this type of floor system while gaining under
floor access, remove only one floor panel at a time.
!Larger floor grids (bigger panels) are generally rated for lighter loads.
!
WARNING
Do not install any raised floor system until you have carefully examined its
specifications to verify that it is adequate to support the appropriate
installation.

Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide 9
Non-raised Floor
!The non-raised floor must be capable of withstanding a uniform load of 1,220
kg/m2 (250 lb/ft2) or a load of 454 kg (1,000 lb) on any 6.5 cm2 (1.0 in.2) with a
maximum deflection of 2.5 mm (0.1 in.).
!The floor must be level within +3.2 mm (1/8 in.) overall and within +1.6 mm
(1/16 in.) in any 3.05 m (10 ft) distance.
!Floor surfaces must be resistant to cracking and dust, must withstand the
movement of heavy equipment on casters, and must resist the buildup of static
electricity.
!Cleaning products containing ammonia must not be used on the floor.
!The use of electrostatic discharge (ESD) protective floor wax in place of ESD-
protective floor materials is not recommended. However, the resistance to
ground of any ESD-protective flooring from any point on its surface must be:
Greater than 1 x 105 (100 thousand) ohms
Less than 1 x 108 (100 million) ohms.
Table 3 lists the weights for the system cabinets including the packaging and the shipping
pallet. Table 4 lists the dimensions and weights for the unpacked cabinets
Table 3. Packaged Server Cabinet Weights
Express5800 System *Weight
1320Xd Main Cabinet 1166.0 lbs.
529.0 kg
1160Xd Main Cabinet 956.9 lbs.
433 kg
1320Xd/1160Xd
Expansion Cabinet
533.4 lbs.
251 kg
1080Xd Cabinet 320.4 lbs.
145.3 kg
*Approximate Weights
Table 4. Unpacked Server Cabinet Weights
Express5800 System *Weight
1320Xd Main Cabinet 981 lbs.
445 kg
1160Xd Main Cabinet 769.4 lbs.
349.0 kg
1320Xd/1160Xd
Expansion Cabinet
368 lbs.
167 Kg
1080Xd Cabinet 220.4 lbs.
100 kg
*Approximate Weights

10 Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide
Electrical Requirements
You should consider installing a separately derived power system for your
Express5800/1000 Series server. This ensures that you can control the hardware grounding,
with all grounds brought to a single point, and that uncontrolled equipment, such as coffee
makers or floor polishers, cannot be plugged into the same power source as the server
hardware.
If you do not create a separately derived power system, you need to make sure the power
outlets you use are from the same distribution panel. This helps to prevent the occurrence of
ground loops that can be caused by plugging equipment into power sources with different
ground potentials.
For the UPSs, you’ll need to run separate 120-volt, 30-amp power lines with a NEMA L5-
30R receptacle, or 230-volt, 30-amp power lines with an IEC C-19 receptacle, to the
location where you are installing the server. If you run more than one power line because
you have more than one UPS, you must make sure the power lines come from the same
distribution panel.
You should have all the electrical work at your site done by a licensed electrician. All the
electrical changes must meet country, state, and local electrical codes.
As you choose the location for your Express5800/1000 Series server, keep these electrical
requirements in mind:
!Make sure there is adequate, dedicated power for the UPSs that are part of your
server environment.
!Make sure your location is away from major electrical equipment such as motors,
air conditioners, or elevators.
!Make sure the location is not subject to electrostatic buildup.
!Plug only your server equipment into the power strips. Do not plug in coffee
makers, radios, lights, or other non-server devices.

Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide 11
System Power Requirements
Table 5 shows the electrical specifications for all Express5800/1000 Series server
configurations. Make sure your site meets these specifications.
Table 5. Server Cabinets Power Requirements
Express5800/
System Power Requirement
Necessary
Power
Capacity (A)
Power
Dissipation
(kVA)* Power Drop
1320Xd Main Cabinet 200-240VAC
/50~60Hz/single phase
22.1 min
44.6 max
5.3 min
10.7 max
L6-30R 30A
4 required
1160Xd Main Cabinet 200-240VAC
/50~60Hz/single phase
16.3 min
27.1 max
3.9 min
6.5 max
L6-30R 30A
2 required
1320Xd/1160Xd
Expansion Cabinet
200-240VAC
/50~60Hz/single phase
3.8 min
22.5 max
.9 min
5.4 max
L6-30R 30A
4 required
1080Xd Cabinet 200-240VAC
/50~60Hz/single phase
14.6 min
18.4 max
3.5 min
4.4 max
L6-30R 30A
1 (hardwired)
* See Power Dissipation Equation information in Table 6 to compute the power dissipation for your
configuration.
Table 6. Power Dissipation Equations:
Express5800/
System Power Dissipation (kVA) Equation
1320Xd Main Cabinet Power Dissipation (kVA) =
(Number of CPUs x 0.191) + (Number of PCI Units x 0.886) + 2.818
1160Xd Main Cabinet Power Dissipation (kVA) =
(Number of CPUs x 0.191) + (Number of PCI Units x 0.886)+ 1.409
1080Xd Cabinet Power Dissipation (kVA) =
(Number of CPUs x 0.22) + (Number of PCI Units x 0.886) + 1.71

12 Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide
Computer Input Power Conditions
Input Power Specifications
The input power source conditions for the power-receiving terminal areas of computers are
listed in Table 7. Figure 1 illustrates the electrical connections for the NEMA L6-30R 230
volt power receptacle required for your server.
Table 7. Computer Input Power Conditions
Item Computer Input Power Condition
Phase quantity Single-phase 3 lines
Voltage (Average value) 208V±10%*
Voltage (Peak value) 208V+15%, -20%
(Drift time: Less than 0.5 sec)
Frequency (Average value) 50 Hz or 60 Hz ± 1 Hz
Frequency (Peak value) 50 Hz or 60 Hz ± 1 Hz to -2.5 Hz (Drift time: within 1 sec)
Waveform distortion rate Within 8%
Grounding Computer-specialized grounding (Grounding resistance: less than 100Ω)
* It is necessary to take into account 2% as the voltage drop of the cable between the distribution panel and the equipment.
When the input power is ON/OFF, the rise/fall time of the input voltage shall be less than 2 seconds.
Figure 1. NEMA L6-30R 230-Volt Power Receptacle
X
Y
Ground
208V
120V
120V
30 Amp, 250V, 2-pole,
3-wire, Single Phase
Grounded

Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide 13
Grounding Conditions
Grounding
The site building shall provide a safety ground/protective earth for each AC service entrance to
all system cabinets. Install a PE (protective earthing) conductor that is identical in size,
insulation material, and thickness to the branch-circuit supply conductors. The PE conductor
must be green with yellow stripes. The earthing conductor described is to be connected from the
unit to the building installation earth or, if supplied by a separately derived system, at the supply
transformer or motor-generator set grounding point.
As the grounding for computers, have a designated grounding line up to the computer’s power
distribution panel. The grounding resistance in this case should not be more than 100Ω. For
information on its thickness, refer to(2) Grounding condition (a). The grounding for computers
shall be basically independent from other devices.
(1) Purpose of grounding
Computer devices are grounded for the following purposes.
(a) Reduced grounding voltage
To aim for reduced contact voltage by connecting the ground with a low resistance
when high voltage is applied to the frame due to an insulation breakdown of a device
or a cable, etc.
(b) Prevention of inductive failures, etc.
To place the voltage potential between the computer device frame and the ground on
the same voltage potential level as that of the ground by allowing the voltage potential
generated through electrostatic induction to the ground.
(c) Reliable operation of the circuit breaker
Actively pass the ground current to the ground to secure a reliable operation of the
leakage breaker in case of accidents of defective insulation.
(d) Prevention of power supply failures
To aim for reduction of power supply failures by actively operating the over-current
breaker when in error.
(e) Realization of equal voltage potential to the ground
To aim for prevention of electric-shock disasters by equalizing the voltage potential to
the ground based on a single-point grounding method.
(f) Prevention of contacts between low and high voltage circuits
To aim for prevention of insulation breakdown of low voltage circuits and electric-
shock disasters deriving from contacts between low and high voltage circuits.
(2) Grounding conditions
When performing the grounding work, make sure to pay attention to the specifications
defined by NEC in addition to the definitions of electric facility technology standards.
(a) The thickness of the grounding conductor should be at least 8 mm2in terms of the
cross section and the same or larger than the main power cable. In the case of the
medium- or large-size system, this should be at least 38 mm2.
(b) Two cables are required for the grounding: one dedicated for computer grounding and
the other for security type-D grounding.

14 Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide
(c) If it is unavoidable to share the security grounding electrode and the computer
grounding electrode, connect them near the ground. Addition of leakage current from
the security grounding electrode will result in activating the leakage breaker. The
grounding is also aimed at preventing the flow of noises from other devices into
computers.
(d) When using the steelwork of the building as a substitute for the grounding electrode,
connect the cable as close as possible to the foundation of the building.
(e) Make sure that the grounding conductor is routed to the power distribution panel.
Environmental Requirements
The Express5800/1000 Series servers are designed to operate in a computer-room
environment. When you select a location, you should:
!Make sure the location has a sturdy, level floor, and is not subject to vibration.
!Make sure the location is away from high-traffic areas.
!Make sure the location is clean and free from dust, smoke, or other airborne
contaminants.
!Make sure the location does not have significant temperature changes. Choose a
location where the temperature does not vary more than 18°F (7.78°C) per hour.
!Make sure the location does not have significant humidity changes. A location
with approximately 40 percent humidity can prevent problems stemming from
electrostatic discharge.
!Make sure the location has adequate space in front of and behind the rack. You
must be able to connect cables and service the parts of your hardware. It also
needs adequate airflow for cooling.
If security for the Express5800/1000 Series server is important, you should address this
issue during site planning. Planning and implementing security for the hardware, before its
installation, will save disrupting the hardware and its users at a later time.
Table 8 provides information on operating and storage temperature and humidity
specifications for the Express5800/1000 Series server hardware components. Make sure
your environment meets the narrowest range of specifications in the table.
Table 8. Environmental Specifications
Express5800/
System Temperature Humidity Heating Value (kj/h) Airflow (m3/min)
1320Xd
Main Cabinet
37,620
1160Xd
Main Cabinet
20,520
CPU/memory
sub-chassis: 32.00
DPS: 1.50
1320Xd/1160Xd
Expansion Cabinet
26,676 PCI BOX: 8.0
DPS: 1.50
1080Xd Cabinet
Operating:
59°to 90°F
(15°to 32°C)
Non-operating:
14°to 131°F
(+5°to 45°C)
Operating:
20 to 80% RH
Non-Operating:
8 to 80% RH
12,654 9.00

Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide 15
Air Flow
The servers require that the cabinet air intake temperature be between 59°F and 90°F
(15° C and 32°C) at 1271 CFM.
Figure 2 illustrates the location of the inlet and outlet air ducts on a single
Epress5800/1320Xd and 1160Xd main cabinet. Figure 3 illustrates the location of the inlet
and outlet air ducts on the Epress5800/1320Xd I/O expansion cabinet. Figure 4 illustrates
the location of the inlet and outlet air ducts for the Epress5800/1080Xd Server.
Make sure you do not obstruct the airflow around the rack with large containers, boxes,
desks, chairs, or other objects. This can cause the server hardware in the rack to run at an
elevated temperature and possibly shorten individual component life.
1320Xd 1160Xd
Figure 2. 1320Xd and 1160Xd Main Cabinet Air Flow

16 Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide
Figure 3. I/O Expansion Cabinet Air Flow
Figure 4. 1080Xd Air Flow