Sun Microsystems fire B1600 Installation Manual

Sun Fire

™

B1600

Blade System Chassis

Hardware Installation Guide

Sun Microsystems, Inc. 4150 Network Circle Santa Clara, CA 95054 U.S.A. 650-960-1300

Part No. 817-3430-10 August 2003, Revision A

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Please

Recycle

1. Preparing for the Installation 1–1

1.1 Checklist of Rackmounting and Setup Tasks 1–2

1.2 Contents of the Ship Kit 1–3

1.3 Tools and Equipment Needed 1–4

1.4 System Chassis Dimensions 1–4

1.5 Site Preparation 1–8

1.5.1 System Cooling Requirements 1–8

1.5.1.1 General Environmental Parameters 1–8

1.5.1.2 Airflow Requirements 1–11

1.5.1.3 Estimating the Heat Dissipation 1–11

1.5.2 Operating Power Limits and Ranges 1–12

1.5.3 Estimating Power Consumption 1–12

2. Rack Options and Placement 2–1

2.1 Rack Options 2–1

2.2 Service Access 2–2

2.3 Rack and Floor Loading 2–3

2.4 Rack and Cabinet Safety 2–3

3. Installing the System Chassis In a Rack or Cabinet 3–1

Contents iii

3.1 Installing the System Chassis In a Four-Post Rack or Cabinet 3–1

3.1.1 Contents of the Four-Post Rackmount Kit 3–2

3.1.2 Using the Rack Buddy 3–2

3.1.3 Attaching the Brackets to the Four-Post Rack 3–3

3.1.4 Installing the System Chassis In the Four-Post Rack or Cabinet

3–6

3.2 Installing the System In a Two-Post Rack 3–11

3.2.1 Contents of the Two-Post Rackmount Kit 3–11

3.2.2 Installing the System Chassis In a Two-Post Rack 3–12

3.3 What to Do Next 3–16

4. Removing and Installing Modules 4–1

4.1 Removing and Installing Blades or Filler Panels 4–2

4.1.1 Removing Blades or Filler Panels 4–3

4.1.2 Installing a Blade or Filler Panel 4–6

4.2 Removing and Installing a PSU 4–9

4.2.1 Removing a PSU 4–10

4.2.2 Inserting a PSU 4–12

4.3 Removing and Installing a Switch and System Controller (SSC) 4–15

4.3.1 Chassis Supplied With Only One SSC 4–15

4.3.2 Removing the SSC 4–17

4.3.3 Installing the SSC 4–19

4.4 What to Do Next 4–22

5. Connecting and Managing Cables 5–1

5.1 Location of Ports and Power Inlets 5–2

5.2 Connecting the IEC Power Cords 5–3

5.3 Cable Requirements for 1000BASE-T and 10/100BASE-TX Connections 5–5

iv Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

5.3.1 1000BASE-T Cable Requirements 5–5

5.3.1.1 Cable Testing for Existing Category 5 Cable 5–5

5.3.2 Cable Requirements for 10/100BASE-TX Devices 5–6

5.4 Attaching the Connector Cables 5–6

5.5 Connecting to the 10/100/1000BASE-T Data Network Ports 5–7

5.6 Connecting to the 10/100BASE-T Network Management Ports 5–10

5.7 Managing Cables for Multiple System Chassis 5–12

5.8 What to Do Next 5–13

6. Connecting the RS232 Serial Port to Different Devices 6–1

6.1 Serial Port Pin Numbers 6–3

6.2 Connecting to a Terminal Server 6–4

6.3 Connecting to a VT100 Terminal or a Sun Workstation 6–5

6.4 Connecting to a Terminal That Has a

9-pin Adapter 6–6

6.5 Connecting to a Modem 6–7

6.6 Connecting the Cable to the Serial Port 6–8

6.7 Setting up a Serial Link to the System Controller Using a Laptop 6–9

6.7.1 Connecting to a Laptop 6–9

6.7.1.1 Using Microsoft Windows HyperTerminal 6–11

6.8 What to Do Next 6–12

Contents v

vi Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

Figures

FIGURE 1-1 System Chassis Dimensions (Top View) 1–6

FIGURE 1-2 System Chassis Dimensions (Front View) 1–7

FIGURE 1-3 Temperature and Altitude Operating Ranges 1–9

FIGURE 1-4 Temperature and Relative Humidity Ranges 1–9

FIGURE 2-1 EIA/RETMA Mounting Hole Pattern Dimensions 2–2

FIGURE 3-1 Using the Rack Buddy 3–2

FIGURE 3-2 Sliding the Front Bracket Section Into the Back Bracket Section

(19-Inch, Four-Post Rack) 3–3

FIGURE 3-3 Connecting the Front and Back Four-Post Bracket Sections (19-Inch, Four-Post Rack) 3–4

FIGURE 3-4 Inserting the Rack Bracket Spacer 3–5

FIGURE 3-5 Removing the Module Retaining Pins 3–7

FIGURE 3-6 Aligning the System Chassis to the Brackets (19-Inch, Four-Post Rack) 3–8

FIGURE 3-7 Removing the Sacrificial Lifting Handle (19-Inch, Four-Post Rack) 3–9

FIGURE 3-8 Tightening the Captive Retaining Screws (19-Inch, Four-Post Rack) 3–10

FIGURE 3-9 Removing the Module Retaining Pins 3–12

FIGURE 3-10 Attaching the Two-Post Front Brackets to the System Chassis

(19-Inch, Two-Post Rack) 3–13

FIGURE 3-11 Attaching the Front of the System Chassis to the Rack

(19-Inch, Two-Post Rack) 3–14

FIGURE 3-12 Attaching the Back Brackets (19-Inch, Two-Post Rack) 3–15

FIGURE 4-1 B1600 System Chassis with Single-width and Double-width Blades 4–2

FIGURE 4-2 Disengaging the Blade Locking Mechanism 4–3

Figures vii

FIGURE 4-3 Ejecting the Blade 4–4

FIGURE 4-4 Removing the Blade 4–5

FIGURE 4-5 Blade Locking Mechanism 4–6

FIGURE 4-6 Aligning and Inserting the Blade 4–7

FIGURE 4-7 Closing the Blade Lever Mechanism 4–8

FIGURE 4-8 PSU Ejector Lever 4–10

FIGURE 4-9 Removing the PSU From the System Chassis 4–11

FIGURE 4-10 Aligning the PSU 4–12

FIGURE 4-11 Sliding the PSU in the System Chassis 4–13

FIGURE 4-12 Closing the PSU Ejector Lever 4–14

FIGURE 4-13 Rear View of the Chassis Showing a Filler Module in Slot SSC1 4–16

FIGURE 4-14 SSC Ejector Lever 4–17

FIGURE 4-15 Removing the SSC From the System Chassis 4–18

FIGURE 4-16 Aligning the SSC Before Insertion 4–19

FIGURE 4-17 Inserting the SSC 4–20

FIGURE 4-18 Closing the SSC Ejector Lever 4–21

FIGURE 5-1 External Cable Ports (One SSC and PSU Shown) 5–2

FIGURE 5-2 Inserting the IEC Power Cords 5–3

FIGURE 5-3 Clipping on the Power Cord Retention Clip 5–4

FIGURE 5-4 The 10/100/1000BASE-T Data Network Ports 5–7

FIGURE 5-5 Attaching the Data Network Cables to the Network Ports 5–9

FIGURE 5-6 10/100BASE-T Network Management Ports 5–10

FIGURE 5-7 Attaching the Network Management Cables 5–11

FIGURE 5-8 Back Cable Management Rings 5–12

FIGURE 6-1 Serial Port Pin Numbers 6–3

FIGURE 6-2 Patch Panel Connections to a Terminal Server 6–4

FIGURE 6-3 Attaching the Serial Cables 6–8

FIGURE 6-4 Connecting the SSC to the Serial Port on a Laptop 6–10

viii Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

Tables

TABLE 1-1 System Chassis Dimensions 1–4

TABLE 1-2 Operating and Storage Specifications 1–8

TABLE 1-3 Operating Power Limits and Ranges 1–12

TABLE 1-4 Power Consumption 1–12

TABLE 2-1 Mounting Hole Pattern Dimensions 2–2

TABLE 5-1 10/100/1000BASE-T Data Network Port Pinouts 5–8

TABLE 5-2 100BASE-T Network Management Port Pinouts 5–10

TABLE 6-1 Serial Port Pinouts 6–3

TABLE 6-2 Serial Port Pinouts to a Terminal Server 6–5

TABLE 6-3 Serial Port Pin Interconnections to a Sun DB-25 (25-pin) Adapter 6–6

TABLE 6-4 Serial Port Pin Interconnections to a DB-9 (9-pin) Adapter 6–7

TABLE 6-5 Default Settings for Connecting a Modem to the Serial Port 6–7

TABLE 6-6 Pin Inter-connections Required to be Performed by the 25x9-way D-type Female-to-Female

Adapter 6–10

Tables ix

x Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

Preface

This guide provides information about how to choose and prepare a location for a Sun Fire B1600 blade system chassis, and details of how to install the system chassis in a rack.

How This Book Is Organized

Chapter 1 describes the environmental requirements and airflow considerations for

the Sun Fire B1600 blade system chassis.

Chapter 2 explains the various rackmount options and requirements for the

system chassis.

Chapter 3 details how to install the system chassis into a rack.

Chapter 4 describes how to install a blade or filler panel in the system chassis. The

chapter also describes how to remove (and install) other components from the system chassis.

Chapter 5 explains how to connect the IEC power supply cords and RJ-45 connectors

to the system chassis.

Chapter 6 explains how to connect the serial port to different devices.

Preparing for the Installation

This chapter provides the information you need to prepare for the installation of the Sun Fire B1600 blade system chassis in the following sections:

■ Section 1.1, “Checklist of Rackmounting and Setup Tasks” on page 1-2

■ Section 1.2, “Contents of the Ship Kit” on page 1-3

■ Section 1.3, “Tools and Equipment Needed” on page 1-4

■ Section 1.4, “System Chassis Dimensions” on page 1-4

1-1

1.1 Checklist of Rackmounting and Setup Tasks

1. Unpack the system chassis.

2. Check that you have the required parts for rackmounting.

See Section 1.2, “Contents of the Ship Kit” on page 1-3, Section 3.1.1, “Contents of

the Four-Post Rackmount Kit” on page 3-2,orSection 3.2.1, “Contents of the Two- Post Rackmount Kit” on page 3-11.

3. Locate the rackmounting holes.

See Section 3.1.2, “Using the Rack Buddy” on page 3-2.

4. Install the rack brackets.

See Section 3.1.3, “Attaching the Brackets to the Four-Post Rack” on page 3-3 or

Section 3.2.2, “Installing the System Chassis In a Two-Post Rack” on page 3-12.

5. Install the system chassis in the rack or cabinet.

See Section 3.1, “Installing the System Chassis In a Four-Post Rack or Cabinet” on

page 3-1 or Section 3.2, “Installing the System In a Two-Post Rack” on page 3-11.

6. Install the blades, if applicable.

See Section 4.2, “Installing a Blade or Filler Panel” on page 4-5.

7. Remove and re-install the PSUs and SSCs if you want to check the serial numbers or familiarize yourself with the installation and removal procedures.

See Section 4.3, “Removing and Installing a PSU” on page 4-8 and Section 4.4,

“Removing and Installing a Switch and System Controller (SSC)” on page 4-14.

8. Connect the power cords.

See Section 5.2, “Connecting the IEC Power Cords” on page 5-3.

9. Connect the management and data cables.

See Section 5.4, “Attaching the Connector Cables” on page 5-6.

10. Connect the serial port(s) to a serial device.

You can connect to both serial ports, if applicable. See Chapter 6 for details of how to connect the system chassis to different devices.

11. Check that cables are managed correctly.

See Section 5.7, “Managing Cables for Multiple System Chassis” on page 5-12.

1-2 Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

1.2 Contents of the Ship Kit

The Sun Fire B1600 blade system chassis is packaged in polyethylene foam cushions for dynamic protection and is contained within a corrugated container with an integrated wood pallet. The sealed corrugated container is attached to the wood pallet at the base with cap nails. The assembly is banded to the wood pallet for additional strength and protection.

The top panels of the container include instructions about how to unpack the system. No special tools are required. One box contains the necessary documentation and software, and the other box holds the rackmount hardware.

The modules shipped within the system chassis depend on the configuration ordered.

The ship kit box accompanying the system contains some or all of the following items:

■ Manuals:

■ Sun Fire B1600 Blade System Chassis Hardware Installation Guide

■ Sun Fire B1600 Blade System Chassis Compliance and Safety Manual (Multilingual)

■ Sun Fire B1600 Blade System Chassis Software Setup Guide

■ Sun Fire B1600 Blade System Chassis Software Quick Start Poster

■ Sun Fire B1600 Blade System Chassis Hardware Quick Start Poster

■ Sun Fire B100x and B200x Server Blade Installation and Setup Guide (supplied only

if the chassis contains B100x and/or B200x server blades)

■ CD: Sun Fire B1600 Platform Documentation, Drivers, and Installation CD

■ 19 Inch four post rackmount kit

■ Cables and connectors

Note – The operating system software kit must be ordered as a separate item. The

manuals and CD shipped with the system chassis are all that you need to install the system chassis hardware.

Use the instructions in this guide and the Sun Fire B1600 Blade System Chassis Product Notes (if present) to unship and mount the system.

Two people are required to lift a fully populated Sun Fire B1600 blade system chassis into a four-post rack, and three people for a two-post rack. The system chassis weighs approximately 45 kg (99lb) when fully equipped.

Chapter 1 Preparing for the Installation 1-3

Do not remove any modules (blades, filler panels, PSUs, SSCs) from the system chassis prior to rack installation as this may result in deformation of the chassis and system chassis failure.

Ensure that doorways, corridors, and aisles are wide and high enough to accommodate the system while you are maneuvering it into position.

1.3 Tools and Equipment Needed

You need the following equipment to install a Sun Fire B1600 blade system chassis:

■ A suitable host rack or cabinet.

■ The appropriate rackmount kit for the host rack or cabinet

■ Category 5 RJ-45 cabling. A maximum of 20 cables are required for a fully

populated system chassis

■ IEC power cabling. Two cables are required per system chassis

You will also need the following tools:

■ No. 2 Phillips screwdriver

■ The correct screwdriver for the rackmounting screws being attached to, and

supplied with, the host rack or cabinet

■ A cage nut insertion tool (only for racks or cabinets using caged nuts)

1.4 System Chassis Dimensions

The shipping dimensions of the Sun Fire B1600 blade system chassis are listed in

TABLE 1-1 and shown in FIGURE 1-1 and FIGURE 1-2.

TABLE 1-1 System Chassis Dimensions

Dimension US Measurement

Overall width 17.64 in. 448.0mm

Overall width, including sacrificial lifting handles 20.08 in. 510.0mm

Depth 26.81 in. 681.0mm

1-4 Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

Metric Measurement

TABLE 1-1 System Chassis Dimensions (Continued)

Dimension US Measurement

Metric Measurement

Overall height 5.16 in. 131.0mm

Overall height, including sacrificial lifting handles 6.22 in. 158.0mm

Weight (fully populated) 99lb 45kg

Chapter 1 Preparing for the Installation 1-5

26.81 in.

24 in.

(681.0mm) (609.6mm)

Orange sacrificial lifting handle

17.64 in.

(448.0mm)

20.08 in.

(510.0mm)

FIGURE 1-1 System Chassis Dimensions (Top View)

The system chassis is designed to fit in a 800mm rack. If you want to install the system chassis in a rack less than 800mm deep, check the suitability of the rack before you start the installation.

1-6 Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

5.16 in.

6.22 in.

(131.0mm)

(158.0mm)

Orange sacrificial lifting handle

FIGURE 1-2 System Chassis Dimensions (Front View)

Chapter 1 Preparing for the Installation 1-7

1.5 Site Preparation

This section contains information about the following system and site requirements for the Sun Fire B1600 blade system chassis:

■ Section 1.5.1, “System Cooling Requirements” on page 1-8

■ Section 1.5.2, “Operating Power Limits and Ranges” on page 1-12

■ Section 1.5.3, “Estimating Power Consumption” on page 1-12

1.5.1 System Cooling Requirements

This section provides the general environmental parameters and airflow requirements for the Sun Fire B1600 blade system chassis.

Note – The Sun Fire B1600 blade system chassis uses front-to-back forced air

cooling.

1.5.1.1 General Environmental Parameters

You can operate and store the system safely in the conditions detailed in TABLE 1-2,

FIGURE 1-3 and FIGURE 1-4.

TABLE 1-2 Operating and Storage Specifications

Specification Operating Storage

Ambient temperature 5˚C to 35˚C

maximum ambient temperature is derated by 1˚C per 500m altitude above 500m

Relative humidity 10% to 90% RH non-

condensing, 27˚C max wet bulb

Altitude -400m up to 3000m -400m up to 12000m

1-8 Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

-40˚C to 65˚C

up to 93% RH noncondensing, 38˚C max wet bulb

Temperature, ˚C

-400

106

500

3000

Altitude, m

Pressure, kPa

FIGURE 1-3 Temperature and Altitude Operating Ranges

27˚C wet bulb temperature

90% RH

Moisture content

10% RH

Dry bulb temperature, ˚C

FIGURE 1-4 Temperature and Relative Humidity Ranges

Chapter 1 Preparing for the Installation 1-9

Recommended Environment Parameters

Your environmental control system must provide intake air for the server which complies with the limits specified in “General Environmental Parameters” on

page 1-8.

To avoid overheating, do not direct warmed air:

■ towards the front of the cabinet or rack

■ towards the server access panels

Note – When you receive your system, leave it in the shipping crate at its final

destination for 24 hours in the environment in which you will install it. This is to prevent thermal shock and condensation.

The operating environmental limits in

TABLE 1-2 reflect what the systems have been

tested to, in order to meet all functional requirements. Operating computer equipment in extremes of temperature or humidity increases the failure rate of hardware components. To minimize the chance of component failure, use the server within the optimal temperature and humidity ranges.

Ambient Temperature

An ambient temperature range of 21˚C to 23˚C is optimal for system reliability. At 22˚C it is easy to maintain safe relative humidity levels. Operating in this temperature range provides a buffer in the event of the environmental support systems failing.

Ambient Relative Humidity

Ambient relative humidity levels between 45% and 50% are the most suitable for data processing operations in order to:

■ prevent corrosion

■ provide an operating time buffer in the event of environmental control system

failure

■ help avoid failures caused by the intermittent interference from static discharges

that occur when relative humidity is too low.

Electrostatic discharge (ESD) is easily generated and less easily dissipated in areas where the relative humidity is below 35%, and becomes critical when levels drop below 30%.

1-10 Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

1.5.1.2 Airflow Requirements

The Sun Fire B1600 blade system chassis has been designed to function in a natural convection airflow when mounted in a rack or cabinet and uses front-to-back forced air cooling. To meet the declared environmental specification follow these guidelines:

■ The Sun Fire B1600 blade system chassis uses PSU fans that can achieve a

maximum airflow of 160cfm in free air. Ensure that there is sufficient airflow through the rack or cabinet.

■ The rack or cabinet in which the system chassis is mounted must provide inlet air

at the front of the system chassis. The airflow exhausts horizontally from the PSU and SSC modules located at the back of the system chassis and must be able to leave the cabinet.

■ Inlet and exhaust ventilation must both have a minimum open area of

■ The use of perforated or solid door panels must allow adequate airflow to the

22in

(142 cm2) for each system chassis.

system chassis when the cabinet doors are closed.

1.5.1.3 Estimating the Heat Dissipation

To estimate the heat generated by a Sun Fire B1600 blade system chassis convert the figure for the system’s power consumption from watts to BTU/hr.

The formula to convert from watts to BTU/hr is to multiply the power in watts by

3.415. For example:

total power consumption of blades + total power consumption of SSCs + total power consumption of PSUs x 3.415 = xxxxx BTU/hr

For power consumption figures for the SSC, the PSU and blades, see “Estimating

Power Consumption” on page 1-12

Note – Do not install multiple Sun Fire B1600 blade system chassis in a four-post

rack or cabinet unless your cooling system is capable of dissipating in excess of the total thermal load. For example: (5 x 700W each system) x 3.415 = 11952.5 BTU/hr

Chapter 1 Preparing for the Installation 1-11

1.5.2 Operating Power Limits and Ranges

TABLE 1-3 Operating Power Limits and Ranges

Description Operating Limit or Range

Maximum operating current

Maximum power supply rating

Maximum in-rush current

Operating input voltage range (auto-ranging)

Voltage frequency range 47 to 63Hz

Power factor 0.8 to 1.0

BTU/Hr rating 3415 BTU/Hr

* Each power cord provides approximately one half of the input current during normal system operation. † Currents up to the maximum power supply rating might be required for future product upgrades ‡ The in-rush current decays to the normal operating current inless than 200 milliseconds. Sequencing of power

to multiple units is not required, as the peak current is less than seven times the operating current.

†

‡

16A @ 110VAC 8A @ 240VAC

12A @ 110VAC 6A @ 240VAC

20A

110 to 240 VAC

1.5.3 Estimating Power Consumption

To estimate the total power consumption for one or more Sun Fire B1600 blade system chassis installed in a single rack or cabinet, add together the individual power requirement figures for each system chassis you have installed, using the values in

One blade + one SSC + two PSUs

TABLE 1-4 Power Consumption

System Chassis Components Power Consumption (max)

one SSC Add 65W per SSC

one PSU Add 110W per PSU

one B100s Blade Add 35W per blade

one B100x Blade Add 48W per blade

one B200x Blade Add 126W per blade

1-12 Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

TABLE 1-4. A minimum system configuration would be:

CHAPTER

Rack Options and Placement

This chapter provides details about the racks and cabinets into which you can install a Sun Fire B1600 blade system chassis, and contains the following sections:

■ Section 2.1, “Rack Options” on page 2-1

■ Section 2.2, “Service Access” on page 2-2

■ Section 2.3, “Rack and Floor Loading” on page 2-3

■ Section 2.4, “Rack and Cabinet Safety” on page 2-3

2.1 Rack Options

You can install the Sun Fire B1600 blade system chassis into these 19-inch and 23-inch racks:

■ 19-inch two-post rack with a post depth between 3in. (76.2 mm) and

6in. (152.4mm)

■ 19-inch four-post IEC297/EIA310-D rack with a distance between mounting rails

from 24.6in. (625 mm) to 36.4in. (925 mm)

■ 23-inch two-post rack with a post depth of 5 in. (127mm). These are intended for

use with telco seismic frames

■ 23-inch four-post rack

Note – You can also install the system into a cabinet, subject to adequate cabinet

ventilation, power and floor loading considerations. Read this chapter for further details.

2-1

The vertical mounting hole pattern of the rack must conform to the standard dimensions given in

TABLE 2-1 Mounting Hole Pattern Dimensions

Standard Pattern

IEC297/EIA310/ RETMA (RU)

IEC917/ETSI (SU) Constant pitch of 0.98 in. (25 mm)

FIGURE 2-1 EIA/RETMA Mounting Hole Pattern Dimensions

TABLE 2-1 and shown in FIGURE 2-1.

Repeating pattern of 5/8 in. (15.7mm), 5/8in. (15.7 mm),

in. (12.7 mm)

1/2

1/2 in. (12.7mm)

5/8 in. (15.7mm)

5/8in. (15.7mm)

1/2in. (12.7mm)

2.2 Service Access

The bottom of lowest of the five system chassis must be mounted no lower than

2.95 in. (75mm) above the bottom of the rack or cabinet to enable removal and fitting of the orange sacrificial lifting handle.

Ensure that units or cables above a Sun Fire B1600 blade system chassis do not protrude beyond the front face of the system chassis to enable proper airflow.

Access to the front and back of the Sun Fire B1600 blade system chassis is required for installation and system maintenance.

Note – If you are installing the system chassis into a cabinet that has a door, you

might need to swing the door back 180 degrees, or remove the door altogether.

2-2 Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

2.3 Rack and Floor Loading

The rack or cabinet must be capable of supporting a static load of 99 lb (45kg) for each fully configured Sun B1600 blade system chassis. Dynamic load considerations are subject to site location and application. You must account for the weight of any cables attached to systems within the rack, as well as additional hardware installed within the rack (power boxes, and so on).

See your manufacturer’s loading guidelines to avoid overloading the rack or cabinet.

Check the maximum floor loading weight for the installation area before calculating the number of system chassis to install in a rack or cabinet.

2.4 Rack and Cabinet Safety

Racks or cabinets that contain Sun Fire B1600 blade system chassis must be anchored to the floor or to adjacent frames, using the manufacturer’s instructions.

Free-standing racks or cabinets with a footprint of less than 23.6in. x 23.6in. (600mm x 600 mm) are likely to be unstable and should be treated with caution.

Where several system chassis are fitted in a rack or cabinet, only one of them should be withdrawn for service at any one time.

See the Sun Fire B1600 Blade System Chassis Compliance and Safety Manual for further safety information.

Caution – If the system chassis is installed in a closed or multi unit rack assembly,

the operating ambient temperature of the rack or cabinet environment might exceed the room ambient. Ensure that rack environment ambient temperature does not exceed 95˚ F (35˚ C).

Caution – Mounting of the system chassis in a rack or cabinet should be such that a

hazardous condition is not created due to uneven mechanical loading or weight distribution.

Chapter 2 Rack Options and Placement 2-3

2-4 Sun Fire B1600 System Chassis Hardware Installation Guide • August 2003

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