Brocade Communications Systems SilkWorm 3800 Quick user guide

Publication Number 53-0001576-06
SilkWorm® 3800
Hardware Reference Manual

Copyright ©2001 - 2002, Brocade Communications Systems, Incorporated.
ALL RIGHTS RESERVED.
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SilkWorm 3800 Hardware Reference iii
Contents
Preface
Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
What’s New in This Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Use of Notes, Cautions, and Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . vi
Related Publications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Technical Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Chapter 1 Introducing the SilkWorm 3800
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Port Side of the SilkWorm 3800. . . . . . . . . . . . . . . . . . . . . . 1-2
Non-Port Side of the SilkWorm 3800. . . . . . . . . . . . . . . . . . 1-2
Monitoring and Managing the SilkWorm 3800 . . . . . . . . . . . . . . . . . . . 1-3
Chapter 2 Installing and Configuring the SilkWorm 3800
Installation and Safety Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Items Included With the SilkWorm 3800 . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Setting Up the SilkWorm 3800 as a Stand-alone Unit . . . . . . . . . . . . . . 2-2
Installing the SilkWorm 3800 in an EIA Cabinet. . . . . . . . . . . . . . . . . . 2-3
Configuring the SilkWorm 3800 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Recommendations for Cable Management. . . . . . . . . . . . . . . . . . . . . . . 2-15
Chapter 3 Operating the SilkWorm 3800
Powering the SilkWorm 3800 On and Off . . . . . . . . . . . . . . . . . . . . . . . 3-1
Interpreting LED Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
LEDs On the Port Side of the Switch. . . . . . . . . . . . . . . . . . 3-2
LEDs On the Non-Port Side of the Switch. . . . . . . . . . . . . . 3-4

iv SilkWorm 3800 Hardware Reference
Interpreting POST Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Maintaining the SilkWorm 3800. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Appendix A Product Specifications
Switch Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Weight and Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Facility Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Power Supply Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Data Transmission Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
Memory Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
Fibre Channel Port Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
Serial Port Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
POST and Boot Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Regulatory Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
FCC Warning (USA only) . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
VCCI Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
CE Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Canadian Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Laser Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Electrical Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Regulatory Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Glossary
Index

SilkWorm 3800 Hardware Reference v
Preface
Intended Audience
This document is intended for use by systems administrators and technicians experienced with
networking, fibre channel, and storage area network (SAN) technologies.
What’s New in This Book
Changes in 53-0001576-06
The following changes have been made since the last release of this book, 53-0001576-05:
•The name of the “Switch Power LED” has been changed to “Switch Power/Status LED”.
•Preface:
-Updated Technical Support information.
-Added formatting conventions.
•Installation chapter:
-Added rack kit procedure.
-Modified configuration procedure.
-Airflow changed to 25 cubic feet per minute (previously linear feet per minute)
-Added recommendations for cable management.
-Default IP address information updated to reflect the current defaults being
programmed at the factory.
•Additions to product specifications:
-Power Supply Specifications - Changed input voltage to 100 - 240 VAC (nominal
80% efficiency).
-Added two EMI classifications -CNS13438 and ICES-003 Class A.
-Added table of Data Transmission Ranges.
-Added list of switch boot steps.

vi SilkWorm 3800 Hardware Reference
Formatting Conventions
The following table describes the formatting conventions that are used in this book.
Use of Notes, Cautions, and Warnings
The following notices are used in this document:
Note: A note provides a tip, emphasizes important information, or provides a reference to
related information.
Convention Purpose
bold text •identifies command names
•identifies GUI elements
•identifies keywords/operands
•identifies text that you must enter at the GUI or CLI
italic text •provides emphasis
•identifies variables
•identifies paths and Web addresses
•identifies book titles
code text •identifies CLI output
•identifies syntax examples
Caution A caution alerts you to potential damage to hardware, firmware,
software, or data if the correct procedure is not followed.
Warning A warning alerts you to potential danger to personnel if the correct
procedure is not followed.

SilkWorm 3800 Hardware Reference vii
Related Publications
Brocade Documentation
Related product information can be found in the following publications:
•Additional hardware documentation:
-SilkWorm 3800®QuickStart Guide (provided as hard copy with switch)
•Fabric OS documentation:
-Brocade Fabric OS Procedures Guide
-Brocade Fabric OS Reference
-Brocade Fabric OS Release Notes
-Brocade Diagnostic and System Error Message Reference
-Brocade MIB Reference
•Fabric Manager documentation:
-Brocade Fabric Manager
-Brocade Fabric Manager Release Notes
•Documentation for Fabric OS optional software:
-Brocade Advanced Zoning User’s Guide
-Brocade ISL Trunking User’s Guide
-Brocade Advanced Web Tools User’s Guide
-Brocade Advanced Performance Monitoring User’s Guide
-Brocade Distributed Fabrics User’s Guide (covers Remote Switch and Extended
Fabrics)
-Brocade Fabric Watch User’s Guide
-Brocade QuickLoop User’s Guide
-Brocade SES User’s Guide
Additional Information
For additional Brocade documentation, including white papers, visit the Brocade website at:
http://www.brocade.com
For information about Fibre Channel standards, visit the Technical Committee T11 website at:
http://www.t11.org
For information about the Fibre Channel industry, visit the Fibre Channel Industry Association
website at:
http://www.fibrechannel.com

viii SilkWorm 3800 Hardware Reference
Technical Support
Contact your switch supplier for hardware, firmware, and software support, including product
repairs and part ordering.
Be prepared to provide the information described in this section to support personnel.
Note: This section provides information for all types of SilkWorm switches.
•General Information
-Technical Support registration number, if applicable
-Switch model
-Operating system version
-Error messages received
-Output from the supportshow command
-Fabric topology, provided by the topologyshow command
-Detailed description of the problem and specific questions
-Description of any troubleshooting steps already performed and results
•Switch Serial Number
The switch serial number and corresponding bar code are provided on the serial number
label, as shown below:
The serial number label is located as follows:
-On SilkWorm 2000 series switches: Bottom of chassis
-On SilkWorm 3000 series switches: Back of chassis
-On SilkWorm 6400 and 12000 switches: Inside chassis, on wall to left of ports
•Switch Worldwide Name
-SilkWorm 12000 switches: The chassis WWN is available through the wwn
command.
-For all switches other than the SilkWorm 12000: The switch WWN is available
through the switchshow and wwn commands.
FT00X0054E9
FT00X0054E9

SilkWorm 3800 Hardware Reference 1-1
1
Introducing the SilkWorm 3800
This chapter provides the following information:
•Overview on page 1-1
•Monitoring and Managing the SilkWorm 3800 on page 1-3
Overview
The SilkWorm 3800 is a 16-port fibre channel gigabit switch that supports link speeds up to
2 Gbit/sec. It includes the Brocade Fabric Operating System, and is compatible with the entire
SilkWorm product family. It can operate in a fabric containing multiple switches or as the only
switch in a fabric.
The SilkWorm 3800 provides the following features:
•Air-cooled 1U chassis that can be set up as a stand-alone unit or mounted in a standard
Electronic Industries Association (EIA) 19-inch cabinet.
•16 fibre channel ports, with the following characteristics:
-Automatic negotiation to the highest common speed of all devices connected to
port
-Port interfaces compatible with small form factor pluggable (SFP) transceivers,
both short wavelength (SWL) and long wavelength (LWL)
-Universal and self-configuring: capable of becoming an F_Port (fabric enabled),
FL_Port (fabric loop enabled), or E_Port (expansion port)
•16 short-wave length SFP transceivers, if ordered
•One RS-232 serial port, designed to connect to a DTE port.
•One 10/100 Mbps ethernet port with an RJ-45 connector
•One or two power supplies, as ordered, with built-in fans (if two power supplies are
installed, they are redundant and individually hot-swappable)
•Two fan assemblies, hot-swappable if replaced one at a time.
•A field-replaceable motherboard assembly enclosed in a grounded EMI cage
•The following LEDs:
-Switch Power/Status LED (light-emitting diode) on the port side of the switch
-Port Readiness LED on the non-port side of the switch
-Port Status LED and Port Speed LED for each port
-Power LED on each power supply

1-2 SilkWorm 3800 Hardware Reference
Introducing the SilkWorm 3800
1
Port Side of the SilkWorm 3800
Figure 1-1 shows the port side of the SilkWorm 3800. IP label, fibre channel ports
Figure 1-1 Port Side of SilkWorm 3800
The fibre channel ports are numbered from left to right, and are color-coded into groups of four to
indicate which ports can be used in the same interswitch link (ISL) trunking group.
Note: Brocade ISL Trunking is optional software that allows creation of trunking groups of
ISLs between adjacent switches. For more information about trunking, refer to the
Brocade ISL Trunking User’s Guide
Non-Port Side of the SilkWorm 3800
Figure 1-2 shows the non-port side of the SilkWorm 3800, which provides access to the fan
assemblies, power supplies, and Port Readiness LED. Each power supply also has an LED that
indicates whether the power supply is receiving power.
Figure 1-2 Non-Port Side of SilkWorm 3800
Switch Power/Status LED
Serial Port Fibre Channel Port (16x)
Ethernet Port
Port Readiness LED
Power Supply #2 Fan Assembly Power Supply #1
Fan Assembly
(contains fans #3 and 4)
(contains fans #1 and 2)

SilkWorm 3800 Hardware Reference 1-3
Introducing the SilkWorm 3800 1
Monitoring and Managing the SilkWorm 3800
Managing the SilkWorm 3800
You can use the management functions built into the SilkWorm 3800 to monitor the fabric
topology, port status, physical status, and other information to aid in performance analysis and
system debugging.
You can manage the SilkWorm 3800 using any of the management options listed in Table 1-1.
Only one telnet session can be active at a time on the SilkWorm 3800.
Note: For information about upgrading the version of Fabric OS installed on the switch, refer
to the Brocade Fabric OS Procedures Guide.
* Requirements for running IP over fibre channel:
•Must be run on both HBA and switch.
•Must be supported by both HBA and HBA driver.
Table 1-1 Management Options for SilkWorm 3800
Management Tool Out-of-band
Support In-band Support
Command line interface
Up to two admin sessions and four user sessions at same
time. For more information, refer to the Brocade Fabric OS
Procedures Guide and the Brocade Fabric OS Reference.
Ethernet or
serial
connection
IP over fibre
channel *
Brocade Fabric Manager
For information refer to the Brocade Fabric Manager
User’s Guide.
Ethernet or
serial
connection
IP over fibre
channel *
Brocade Advanced Web Tools
For information refer to the Brocade Advanced Web Tools
User’s Guide.
Ethernet or
serial
connection
IP over fibre
channel *
Standard SNMP applications
For information refer to the Brocade MIB Reference.
Ethernet or
serial
connection
IP over fibre
channel *
Management server
For more information, refer to the Brocade Fabric OS
Procedures Guide and the Brocade Fabric OS Reference.
Ethernet or
serial
connection
Native inband
interface
(over HBA only)
Brocade SCSI Enclosure Services
For more information, refer to the Brocade SES User’s
Guide.
Not supported SCSI over fibre
channel

1-4 SilkWorm 3800 Hardware Reference
Introducing the SilkWorm 3800
1
Supported Features
The SilkWorm 3800 supports the following optional Brocade software, which can be activated with
the purchase of the corresponding license key:
•Brocade Advanced Zoning
For information refer to the Brocade Advanced Zoning User’s Guide.
•Brocade ISL Trunking
For information refer to the Brocade ISL Trunking User’s Guide.
•Brocade Fabric Watch
For information refer to the Brocade Fabric Watch User’s Guide.
•Brocade Advanced Performance Monitoring
For information refer to the Brocade Advanced Performance Monitoring User’s Guide.
•Brocade Extended Fabrics
For information refer to the Brocade Distributed Fabrics User’s Guide, which also covers
Remote Switch.
•Brocade Remote Switch
For information refer to the Brocade Distributed Fabrics User’s Guide.
•Brocade QuickLoop
For information refer to the Brocade QuickLoop User’s Guide.

SilkWorm 3800 Hardware Reference 2-1
Chapter
2
Installing and Configuring the SilkWorm 3800
This chapter provides the following information:
•Installation and Safety Considerations on page 2-1
•Items Included With the SilkWorm 3800 on page 2-2
•Setting Up the SilkWorm 3800 as a Stand-alone Unit on page 2-2
•Installing the SilkWorm 3800 in an EIA Cabinet on page 2-3
•Configuring the SilkWorm 3800 on page 2-10
Installation and Safety Considerations
You can install the SilkWorm 3800 in two ways:
•As a stand-alone unit on a flat surface
•In an Electronic Industries Association (EIA) cabinet using the Slide Rack Mount Kit
provided with the switch.
For successful installation and operation of the switch:
•Ensure the following electrical requirements are met:
-Primary AC Input 100-240 VAC (switch auto-senses input voltage), 47-63 HZ.
-Correctly wired primary outlet, with circuit protected by a circuit breaker and
grounded in accordance with local electrical codes.
-Adequate supply circuit, line fusing, and wire size, as specified by the electrical
rating on the switch nameplate
-For power supply information, refer to Power Supply Specifications on page A-3
•To ensure adequate cooling, install the switch with the non-port side, which contains the
air intake vents, facing the cool-air aisle.
•Verify that a minimum of 21 cubic feet/minute (35.7 cubic meters/hour) of air flow is
available to the air intake vents on the non-port side of the switch
•Verify that the ambient air temperature does not exceed 40°Celsius (104°Farenheit)
while the switch is operating.

2-2 SilkWorm 3800 Hardware Reference
Installing and Configuring the SilkWorm 3800
2
•If installing the switch in a cabinet:
-The cabinet must be a standard EIA cabinet.
-Plan a cabinet space that is 1 rack unit (1.75 inches; 4.45 cm) high, 19 inches
(48.3 cm) wide, and at least 30 inches (76.2 cm) deep.
-Ground all equipment in cabinet through a reliable branch circuit connection, and
maintain ground at all times. Do not rely on a secondary connection to a branch
circuit, such as a power strip.
-Ensure that airflow and temperature requirements are met on an ongoing basis,
particularly if the switch is installed in a closed or multi-cabinet assembly.
-Verify that the additional weight of the switch does not exceed the cabinet’s
weight limits or unbalance the cabinet in any way.
-Secure the cabinet to insure stability in case of unexpected movement.
Items Included With the SilkWorm 3800
The following items are included with the standard shipment of the SilkWorm 3800:
•The SilkWorm 3800 switch, containing two fan assemblies and one or two power supplies
•Slide Rack Mount Kit, with installation instructions
•One accessory kit containing the following items:
-The SilkWorm 3800 QuickStart Guide
-The Brocade Documentation CD-ROM
-SFP (small form factor pluggable) transceivers (optional)
-Rubber mounting feet
-One or two power cords, 6 ft. (1.8 m) long, grounded, and country-specific
-One serial cable, 10 ft. (3.0 m) long, which can be converted from a DB-9 serial cable
to an RJ-45-style serial cable by removing adapter on end of cable
Setting Up the SilkWorm 3800 as a Stand-alone
Unit
1. Unpack the SilkWorm 3800, and verify all ordered items are present.
2. Clean the four corner depressions on bottom of switch and place a rubber foot in each one.
This helps prevent the switch from accidentally sliding off the supporting surface.
3. Place the switch on a stable, flat surface.
Caution Do not connect the switch to the network until the IP address is correctly
set. For instructions on how to set the IP address, see Configuring the
SilkWorm 3800 on page 2-10.

SilkWorm 3800 Hardware Reference 2-3
Installing and Configuring the SilkWorm 3800 2
Installing the SilkWorm 3800 in an EIA Cabinet
These instructions are for installing the SilkWorm 3800 in an EIA cabinet using the Slide Rack
Mount Kit. The rack kit can be installed in two ways:
•To allow the port side of the switch to slide out of the exhaust-air side of the cabinet.
In this installation, the port side of the switch is flush with the edge of the cabinet.
•To allow the non-port side of the switch to slide out the cool-air side of the cabinet.
In this installation, the port side of the switch is set three inches back from the edge of the
cabinet, allowing a more gradual bend in the fiber optic cables.
Note: This procedure is written with the assumption that the non-port side of the switch,
which contains the air intake vents, is installed facing the cool-air aisle.
Items required:
•SilkWorm switch and power cords provided with the switch
•Slide Rack Mount Kit
•Phillips screwdriver, #2, with torque capability
•Slotted blade screwdriver, 1/4 inch, with torque capability

2-4 SilkWorm 3800 Hardware Reference
Installing and Configuring the SilkWorm 3800
2
Slide Rack Mount Kit Parts List
Note: The Slide Rack Mount Kit is compatible with 8, 16, and 32-port SilkWorm switches.
Table 1 Items Supplied with the Slide Rack Mount Kit
Item # Description Total Qty.
Hardware required for installing an 8, 16, or 32-port switch:
1 Assembly, Slide, containing one each of inner slide rail, outer slide rail, and Items 2, 3, 4, below 2
2 L-Bracket, Slide Mount, 3 hole 4
3 Nut, Hex, Locking, 8-32 (4 nuts in each slide assembly) 8
4 Screw, 8-32 x 3/8 inch, Slotted, Zinc (requires a torque of 15 inch-pounds, 17 cm-kgs)
4 nuts in each slide assembly 8
5Clip,PowerCord 6
6 Screw, 10-32 x 3/8 inch, Phillips, Black (requires a torque of 25 inch-pounds, 29 cm-kgs) 12
7 Screw, 8-32 x 3/16 inch, Phillips, Zinc (requires a torque of 15 inch-pounds, 17 cm-kgs)
6 to attach inner rails to switch; 4 to attach Items 11, 12 to switch 10
8 Nut, Bar, Rack, 3 hole 4
Hardware specific to installing a switch in a cabinet that has square-holed rails:
9 Washer, Alignment 12
10 Nut, Retainer, 10-32 12
Hardware specific to installing an 8 or 16-port switch to slide out the exhaust-air side of the cabinet:
11 Bracket, Right, Rack Mount (optional bracket for port side) 1
12 Bracket, Left, Rack Mount (optional bracket for port side) 1
Hardware specific to installing a 32-port switch to slide out the exhaust-air side of the cabinet:
13 Bracket, Mounting, Right (optional bracket for port side) 1
14 Bracket, Mounting, Left (optional bracket for port side) 1
15 Screw, 8-32 x 1/4 inch, Phillips, Zinc (requires a torque of 15 inch-pounds, 17 cm-kgs) 4
Hardware specific to installing either type of switch to slide out the cool-air side of the cabinet:
16 Bracket, Back Rack Mount (optional bracket for non-port side) 2
(3) Nut, Hex, Locking, 8-32 (for ends of Item 4 screws) 4
(4) Screw, 8-32 x 3/8”, Slotted, Zinc (requires a torque of 15 inch-pounds) 4

SilkWorm 3800 Hardware Reference 2-5
Installing and Configuring the SilkWorm 3800 2
Cabinet Installation Procedure
1. Separate the inner and outer slide rails for both slide assemblies (Item 1):
a. Pull the inner slide rail out until the lock engages.
b. Depress the lock release lever located inside the inner rail, and pull the inner rail out of the
outer rail.
c. Repeat with the second slide assembly.
2. Install the inner slide rails on the switch chassis:
a. Position one of the inner slide rails with the flat side against the switch, oriented as
follows:
•To allow the switch to slide out the exhaust-air side of the cabinet:
Orient the rail as shown in Figure 2-1 on page 2-8, with the end containing the
lock release lever towards the non-port side of switch.
•To allow the switch to slide out the cool-air side of the cabinet:
Orient the rail as shown in Figure 2-2 on page 2-9, with the end containing the
lock release lever towards the port side of switch.
b. Attach the rail using three of the Phillips head 8-32 x 3/16 inch screws (Item 7).
c. Tighten the screws to a torque of 15 inch-pounds.
d. Repeat with the second inner slide rail on the other side of the switch.
3. Optional: Install the Rack Mount Brackets on the switch.
These brackets prevent the switch from sliding out of the cabinet in case the cabinet is
accidentally moved.
•To allow the switch to slide out the exhaust-air side of the cabinet:
i. Position the right Rack Mount Bracket (Item 11 or 13, depending on switch type) as
shown in Figure 2-1 on page 2-8.
ii. Attach brackets (Items 11 and 12) to switch using two Phillips head 8-32 x 3/16 inch
screws (Item 7).
iii. Tighten screws to a torque of 15 inch-pounds.
iv. Repeat with left Rack Mount Bracket (Item 14).
•To allow the switch to slide out the cool-air side of the cabinet:
i. Position a rear Rack Mount Bracket (Item 16) at the end of an inner slide rail (the end
that does not contain the lock release lever), as shown in Figure 2-2 on page 2-9.
ii. Attach the brackets (Items 16) to the slide rail using two of the slotted head 8-32 x 3/8
inch screws (Item 4), and add a lock nut (Item 3) to the end of each screw.
iii. Tighten the screw to a torque of 15 inch-pounds.
iv. Repeat with the second inner slide rail.
Caution Using screws longer than the specified length can damage the switch.
Caution Using screws longer than the specified length can damage the switch.

2-6 SilkWorm 3800 Hardware Reference
Installing and Configuring the SilkWorm 3800
2
4. Verify that two of the slide mount L-brackets (Item 2) are attached to each outer slide rail,
using two of the slotted head 8-32 x 3/8 inch screws (Item 4) per bracket, with the screw heads
on the inside of the slide rails and a lock nut (Item 3) on the end of each screw. These screws
should be at a torque of 15 inch-pounds.
5. Install the power cord clips (Item 5) onto the outer slide rails. Install the clips on the outer
surface of the slide rails, so that they do not interfere with sliding the rails. The clips can be
oriented with the tabs above or below, provided they are consistent.
6. Insert the power cords into the power cord clips, with the pronged end of the power cords
toward the cool-air aisle, for access to the power source.
Note: Allow a minimum service loop of 6 inches at the switch to ensure freedom of
movement to plug and unplug cords from switch.
•To allow the switch to slide out the exhaust-air side of the cabinet:
Install the power cords into the clips with the receptacle end towards the closed end
of the slide rail.
•To allow the switch to slide out the cool-air side of the cabinet:
Install the power cords into the clips with the receptacle end towards the open end of
the slide rail.
7. Install the outer slide rails in the cabinet:
a. Position one of the outer slide rails in the cabinet, as follows:
•To allow the switch to slide out the exhaust-air side of the cabinet: Orient as
shown in Figure 2-1 on page 2-8, with the closed end of the slide rail towards the
cool-air side of the cabinet.
•To allow the switch to slide out the cool-air side of the cabinet: Orient as shown
in Figure 2-2 on page 2-9, with the closed end of the slide rail towards the
exhaust-air side of the cabinet.
b. Attach the bracket on one end of the slide rail to the corresponding cabinet rail, as shown
in Figure 2-1, and Figure 2-2.
Note: If the Rack Mount Brackets were installed in step 3, leave the middle hole of the set
of three empty for attaching the Rack Mount Bracket.
Caution Ensure cords are not exposed to stress when switch is moved on slide
rails. To prevent cords from being pulled out of clips, unplug them from
switch before moving switch on slide rails.

SilkWorm 3800 Hardware Reference 2-7
Installing and Configuring the SilkWorm 3800 2
For round-holed rack rails, use the following hardware:
•One 3-hole bar nut (Item 8)
•Two Phillips head 10-32 x 3/8 inch screws (Item 6)
For square-holed rack rails, there are two possible methods (see Figure 2-3 on page 2-10
and Figure 2-4 on page 2-10):
•Method A:
-Three retainer nuts (Item 10)
-Two Phillips head 10-32 x 3/8 inch screws (Item 6)
•Method B:
-One 3-hole bar nut (Item 8)
-Three alignment washers (Item 9)
-Two Phillips head 10-32 x 3/8 inch screws (Item 6)
c. Tighten the screws to a torque of 25 inch-pounds.
d. Repeat steps 7a through 7c with the bracket on the other end of the same slide rail. The
bracket position can be adjusted to fit the cabinet.
e. Repeat steps 7a through 7d with the second slide rail.
8. Install the switch in the cabinet:
a. Position the switch next to thecabinet as shown in Figure 2-1 or Figure 2-2 as appropriate,
and align then insert the inner slide rails into the outer slide rails.
b. Gently slide the switch into the cabinet.
c. Check rail alignment by sliding the switch in and out of the cabinet. If there is any
difficulty, pull the switch out of the cabinet and realign the slide rails.
d. Optional: If the Rack Mount Brackets were installed in step 3, attach the brackets to the
cabinet rails using one Phillips head 10-32 x 3/8 inch screw (Item 6) per bracket, and
tighten the screws to a torque of 25 inch-pounds.
Note: For power on instructions, refer to Configuring the SilkWorm 3800 on page 2-10.
Caution Do not connect the switch to the network until the IP address is correctly
set. For instructions on how to set the IP address, see Configuring the
SilkWorm 3800 on page 2-10.

2-8 SilkWorm 3800 Hardware Reference
Installing and Configuring the SilkWorm 3800
2
Figure 2-1 Installing an 8 to 16-Port Switch to Slide Out the Exhaust-air Side of the Cabinet
Caution: procedure for use on the chassis.
use the exact screws specified in the
To prevent damage to the switch,
Item 2 (4x)
Item 1 (2x)
Item 3 (8x)
Item 4 (8x)
Item 5 (6x) Item 8 (4x)
Item 6 (12x)
Item 7 (6x)
Item 11Item 12
Item 6 (2x) Item 7 (4x)
Outer Slide
Inner Slide
ExhaustAirAisle
Cabinet Rail (4 shown)
Slide Direction