Tektronix VX1411 Instruction Manual

Instruction Manual

VX1411
VXIbus Mainframe

070-9602-00

Warning

The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to the Safety Summary prior to
performing service.

Copyright  Tektronix, Inc. All rights reserved.
T ektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes

that in all previously published material. Specifications and price change privileges reserved.
Printed in the U.S.A.
T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.

WARRANTY

T ektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship
for a period of three (3) years from the date of shipment. If a product proves defective during this warranty period,
T ektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a
replacement in exchange for the defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by T ektronix, with shipping charges prepaid.
T ektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the
T ektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any
other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. T ektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel other than T ektronix representatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction
caused by the use of non-T ektronix supplies; or d) to service a product that has been modified or integrated with other
products when the effect of such modification or integration increases the time or difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR
IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO
REP AIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO
THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE
LIABLE FOR ANY INDIRECT , SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE
OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH
DAMAGES.

Table of Contents

Getting Started

Operating Basics

Reference

General Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service Safety Summary ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preface xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Getting Started 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Standard Accessories 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optional Accessories 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting the Correct Power Cord and Fuse 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuration 1–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Functional Check 1–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Basics 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fan Speed Control 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Backplane Connectors 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications

Specifications 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Verification

Equipment Required 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Voltage Regulation 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance

Service Strategy 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preparation 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inspection and Cleaning 6–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Interior Cleaning 6–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Exterior Cleaning 6–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cleaning the Fan Filter 6–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Removal and Replacement 6–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T ools Required 6–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Procedure 1: Removing the Fan Assembly 6–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Procedure 2: Removing the Fan Control Board 6–7. . . . . . . . . . . . . . . . . . . . . . . . . .

Procedure 3: Removing the Power Supply 6–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Procedure 4: Removing the Card Guides 6–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Procedure 5: Replacing the T op and Bottom Nut Rails 6–11. . . . . . . . . . . . . . . . . . . .

Procedure 6: Removing the Backplane 6–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VX1411 MainFrame Instruction Manual

i

Table of Contents

Replaceable Parts

Appendicies

Glossary
Index

Troubleshooting Procedures 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment List 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diagnostic Information 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuses 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fault Isolation 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Repackaging Instructions 6–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Theory of Operation 6–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Ordering Information 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VX1411 Mainframe Common Replaceable Parts 7–2. . . . . . . . . . . . . . . . . . . . . . . .

Using the Replaceable Parts List 7–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix A: Power Budget Worksheet A–1. . . . . . . . . . . . . . . . . . . . . . . . .

ii

VX1411 MainFrame Instruction Manual

List of Figures

Table of Contents

Figure 1–1: Installing the Option 1U 1.75-inch deep cable tray 1–7. . . . .

Figure 1–2: Installing the Option 1U 2.5-inch deep cable tray 1–8. . . . . .

Figure 1–3: Installing the Option 1U 4.25-inch deep cable tray 1–9. . . . .

Figure 1–4: Installing the rackmount kit hardware 1–11. . . . . . . . . . . . . . .

Figure 1–5: Assembling the slide-out track assemblies 1–12. . . . . . . . . . . .

Figure 1–6: Vertical clearance for rack installation

(standard mainframe) 1–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–7: Installing the slide-out track assemblies

in the rack (top view) 1–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–8: Installing the rackmount door (Option 2R) 1–16. . . . . . . . . . .

Figure 1–9: Installing the empty slot panel fillers 1–18. . . . . . . . . . . . . . . .

Figure 1–10: Locations of safety and chassis ground connections on left rear

of the mainframe 1–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–11: Installing the backplane EMI DIN Shields 1–20. . . . . . . . . . .

Figure 1–12: Installing the EMI intermodule shield and front panel EMI

fillers 1–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–1: Front view of the VX1411 Mainframe 2–1. . . . . . . . . . . . . . .

Figure 2–2: Power output fan versus temperature for

the 2 fan speeds 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–3: Rear View of the VX1411 Mainframe 2–3. . . . . . . . . . . . . . . .

Figure 4–1: Power output versus temperature for the 2 fan speeds 4–4. .

Figure 4–2: Mainframe cooling curve 4–5. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 4–3: Front view and side view of VX1411 Mainframe 4–10. . . . . . .

Figure 4–4: Front view and side view of VX1411 Mainframe with Option 1U

and rackmount option 4–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 6–1: Removing the Fan Filter 6–3. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 6–2: Location of Fan Assembly Screws on the

Rear of the Mainframe 6–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 6–3: Removing the Fan Assembly 6–6. . . . . . . . . . . . . . . . . . . . . . .

Figure 6–4: Removing the Fans 6–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 6–5: Removing the fan control board 6–7. . . . . . . . . . . . . . . . . . . .

Figure 6–6: Removing the Power Supply Interface Board 6–8. . . . . . . . .

Figure 6–7: Removing the Top and Bottom Card Guides 6–10. . . . . . . . . .

Figure 6–8: Replacing the Top and Bottom Nut Rails 6–11. . . . . . . . . . . . .

Figure 6–9: Removing the Backplane 6–13. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 6–10: Mainframe block diagram 6–17. . . . . . . . . . . . . . . . . . . . . . . .

VX1411 MainFrame Instruction Manual

iii

Table of Contents

Figure 7–1: Cabinet and Chassis Assembly 7–7. . . . . . . . . . . . . . . . . . . . .

Figure 7–2: Circuit Boards and Chassis Parts 7–9. . . . . . . . . . . . . . . . . . .

Figure 7–3: Power Supply and Fan Assembly 7–11. . . . . . . . . . . . . . . . . . .

Figure 7–4: 1R Rackmount Assembly 7–13. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 7–5: 2R Rackmount and Door Assembly 7–15. . . . . . . . . . . . . . . . .

Figure 7–6: Option 1U Cable Tray 7–17. . . . . . . . . . . . . . . . . . . . . . . . . . . .

iv

VX1411 MainFrame Instruction Manual

List of Tables

Table of Contents

Table 1–1: VX1411 Mainframe options and upgrade kits 1–3. . . . . . . . .

Table 1–2: Power cord identification 1–4. . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–3: Line fuse application 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–4: Power supply voltages P1 and P2 of the extender card 1–22. .

Table 3–1: P1 Connector pinouts 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–2: P2 Connector pinouts for slots 1 – 12 3–2. . . . . . . . . . . . . . . .

Table 3–3: P2 Connector pinouts for slot 0 3–3. . . . . . . . . . . . . . . . . . . . .

Table 4–1: AC power source 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 4–2: Secondary power 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 4–3: Cooling 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 4–4: Environmental 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 4–5: Certifications and compliances 4–7. . . . . . . . . . . . . . . . . . . . . .

Table 4–6: Backplane 4–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 4–7: Mechanical 4–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 4–8: VXI and VXIplug&play 4–11. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 6–1: Fuses 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 7–1: VX1411 Mainframe Common Replaceable Parts 7–2. . . . . . .

Table 7–2: Parts list column descriptions 7–3. . . . . . . . . . . . . . . . . . . . . . .

VX1411 MainFrame Instruction Manual

v

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it.

Only qualified personnel should perform service procedures.

While using this product, you may need to access other parts of the system. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.

To avoid potential hazards use this product only as specified.

Injury Precautions

Use Proper Power Cord. To avoid fire hazard, use only the power cord specified

for this product.
Avoid Electric Overload. To avoid electric shock or fire hazard, do not apply a

voltage to a terminal that is outside the range specified for that terminal.
Avoid Overvoltage. To avoid electric shock or fire hazard, do not apply potential

to any terminal, including the common terminal, that varies from ground by
more than the maximum rating for that terminal.

Avoid Electric Shock. To avoid injury or loss of life, do not connect or disconnect
probes or test leads while they are connected to a voltage source.

Ground the Product. This product is grounded through the grounding conductor
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.

Do Not Operate Without Covers. To avoid electric shock or fire hazard, do not
operate this product with covers or panels removed.

Use Proper Fuse. To avoid fire hazard, use only the fuse type and rating specified
for this product.

Do Not Operate in Wet/Damp Conditions. To avoid electric shock, do not operate
this product in wet or damp conditions.

Do Not Operate in an Explosive Atmosphere. To avoid injury or fire hazard, do not
operate this product in an explosive atmosphere.

Product Damage

Precautions

VX1411 MainFrame Instruction Manual

Use Proper Power Source. Do not operate this product from a power source that
applies more than the voltage specified.

Provide Proper Ventilation. To prevent product overheating, provide proper
ventilation.

vii

General Safety Summary

Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.

Symbols and Terms

T erms in this Manual. These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.

T erms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the

marking.
WARNING indicates an injury hazard not immediately accessible as you read the

marking.
CAUTION indicates a hazard to property including the product.

Symbols on the Product. The following symbols may appear on the product:

viii

DANGER

High Voltage

Protective Ground

(Earth) T erminal

ATTENTION

Refer to Manual

Double

Insulated

VX1411 MainFrame Instruction Manual

Service Safety Summary

Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service

procedures.
Do Not Service Alone. Do not perform internal service or adjustments of this

product unless another person capable of rendering first aid and resuscitation is
present.

Disconnect Power. To avoid electric shock, disconnect the main power by means
of the power cord or, if provided, the power switch.

Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.

VX1411 MainFrame Instruction Manual

ix

Preface

The VX1411 Mainframe Instruction Manual provides information on using the
mainframe. The manual includes the following chapters:

H Getting Started provides a brief description of the VX1411 Mainframe, a list

of accessories that accompany the mainframe, installation and configuration

procedures, and a functional check procedure.
H Operating Basics provides a functional overview of the mainframe and

includes illustrations of the main components.
H Specifications lists all of the warranted characteristics, nominal traits, and

typical characteristics of the mainframe.
H Performance Verification includes the performance verification procedures

used to verify the advertised specifications of the mainframe.
H Maintenance is intended for qualified service personnel who need to service

the mainframe. Module-level removal and replacement procedures and

troubleshooting procedures are included in this chapter.
H Replaceable Parts includes a list of replaceable mechanical and electrical

parts for the mainframe to be used with the maintenance chapter. It also

includes the exploded view diagrams of the mainframe and options.

H Appendices include a power budget.
H Glossary.
H Index.

VX1411 MainFrame Instruction Manual

xi

Getting Started

Product Description

This chapter provides an overview of the VX1411 Mainframe. It includes
installation and configuration information on user installed options.

The VX1411 Mainframe is a 13-slot, C-size, VXIbus Mainframe. It fully
complies with the VXIbus Specification 1.4 requirements and is VXIplug&play
compatible. The mainframe has the following features:

H Adequate available power for the majority of applications
H Intelligent cooling for installed modules
H High quality auto-configuration backplane
H Optional adjustable rackmounts and cable tray

These features are explained in more detail in the following paragraphs.

Power Supply

Cooling

The VX1411 Mainframe provides all VXIbus voltages at levels necessary for
most ATE applications. The power supply has a volt-ampere capacity of 904 VA,
but only 500 watts is usable by VXI instrument modules at any one time (see
Appendix A: Power Budget Worksheet). The mainframe accommodates
exclusively digital applications, exclusively analog applications, or combina­tions of both.

The power supply plugs directly into the rear of the mainframe and has no cables
to disconnect. Because of this, the power supply can easily be replaced in less
than three minutes, keeping downtime to a minimum. The power supply
automatically sets the ranges for the appropriate input voltage and frequency; no
mechanical switch is required to select the correct line voltage.

The VX1411 Mainframe provides optimal cooling for all installed modules. The
mainframe is equipped with two efficient 2 speed fans. The fan speed can easily
be manually switched from a low noise, low speed to high speed for maximum
cooling.

Air is exhausted at the sides of the mainframe allowing you to stack the
mainframe with other rackmount equipment. Additional equipment placed on or
positioned above the product will not restrict airflow nor will that equipment be
directly affected by exhaust air.

VX1411 MainFrame Instruction Manual

1–1

Getting Started

CAUTION. Make sure the ambient air temperature inside the rackmount enclosure
remains below 55C.

Cooling is not wasted on empty slots. IntelliGuides automatically direct air to
only those slots containing modules; empty slots are shut off. The mainframe
directs airflow across each installed module from the bottom to the top of each
slot. Baffles balance the airflow from the front to back and across occupied slots
in the mainframe.

You can easily remove the air filter from the rear of the mainframe within a
matter of seconds. The fans can be easily replaced without disassembling the
entire mainframe.

Backplane

Optional Rackmounts and

Cable Tray

The VX1411 Mainframe has an auto-configuration, solid-state backplane that
uses electronic jumpers for the IACK and BUS GRANT signal lines. There are
no jumpers to move or install on the backplane. This results in a high quality
backplane that is ideal for ATE systems that must be reconfigured frequently.

Full differential distribution of the CLK10 signals provide a clean timing source
for your VXIbus instruments.

You can order the VX1411 Mainframe with user-installed rackmounts and cable
tray. The cable tray provides a means to conveniently route cables from the front
of the modules to the rear of the mainframe. Option 1U includes a 1.75-inch
connector plate. You can install Option 1U to provide a 1.75-inch, 2.5-inch, or

4.25-inch deep cable tray.
The rackmount adapters let you recess the mainframe from the front panel

mounting surface at specified depths from 0.735 inches to 5.735 inches in

0.5-inch increments. Similarly, you can configure the mainframe to extend out of
the front of the rack at specified depths (0.57 inches to 5.57 inches in 0.5-inch
increments).

You can install the rackmount kits along with the cable tray to provide vertical
cable access to easily route cables to instruments above or below the mainframe
while keeping lead lengths as short as possible.

1–2

You can also install an optional Lexan door with the rackmount kit.

NOTE. If you choose to extend the mainframe out of the front of the rack, the
mainframe cannot accept a door.

Instructions for installing the cable tray begin on page 1–6 and instructions for
the rackmounts begin on page 1–10.

VX1411 MainFrame Instruction Manual

Getting Started

Options and Upgrade Kits

Table 1–1 lists the VX1411 Mainframe options and upgrade kits that you can
purchase and install separately. Contact your local Tektronix representative for
information on the upgrade kits.

T able 1–1: VX1411 Mainframe options and upgrade kits

Description Option Part Number

Rackmount Kit with Rack Slides 1R 020-21 17-XX
Rackmount Kit with Rack Slides and Lexan Door 2R 020-2118-XX
Cable Tray Kit 1U 020-2119-XX

VX1411 MainFrame Instruction Manual

1–3

Getting Started

Standard Accessories

The VX1411 Mainframe comes with the following standard accessories:

H VX1411 Mainframe Instruction Manual
H One Power cord (voltage range and plug type varies according to country,

see Table 1–2)

H 5 x 20 mm line fuse, 4 A, 250 V
H 5 x 20 mm line fuse holder

T able 1–2: Power cord identification

Plug configuration Normal usage Option number

North America
250V/13A Plug
NEMA 5-15P

Europe
230 V

United Kingdom
230 V

Australia
230 V

Standard

A1

A2

A3

1–4

VX1411 MainFrame Instruction Manual

T able 1–2: Power cord identification (Cont.)

Plug configuration Option numberNormal usage

Getting Started

Optional Accessories

North America
230 V

Switzerland
230 V

The VX1411 Mainframe has the following optional accessories:

H Single-wide front panel fillers (Tektronix part number 334-4170-00)
H Double-wide front panel fillers (Tektronix part number 334-4169-00)
H Single-wide EMI front panel fillers (Tektronix part number 333-4092-00)
H Double-wide EMI front panel fillers (Tektronix part number 333-4092-01)

A4

A5

H EMI intermodule shields (Tektronix part number 337-4041-00)
H Backplane EMI DIN shields (Tektronix part number 020-2144-00)

Selecting the Correct Power Cord and Fuse

The VX1411 Mainframe comes standard with a power cord and two fuses.
Before installing the mainframe, you must determine the correct fuse for your
application. Use the following information to determine the appropriate line fuse
for the VX1411 Mainframe:

T able 1–3: Line fuse application

Line voltage fuse

90 – 250V 10A fast, 0.25 x 1.25 in
207 – 250 V 4A time delay, 5 x 20mm, (use 5 x20mm fuseholder cap)

VX1411 MainFrame Instruction Manual

1–5

Getting Started

Installation

This section describes the procedures to install your mainframe. It includes
procedures for installing the mainframe with the rackmount or cable tray options.

This section does not include specific procedures for installing modules in the
mainframe. Refer to your module documentation for information regarding the
module installation instructions.

Site Considerations

Cable Tray Installation

The VX1411 Mainframe is designed to operate on a bench or in a rackmount
environment. For proper cooling, allow at least two inches (5.1 cm) of clearance
on the rear and sides of the mainframe. Determine how you will use your
VX1411 Mainframe and follow the appropriate installation instructions. If you
ordered your mainframe with the cable tray option and one of the rackmount
options, install the cable tray before installing the rackmount.

WARNING. Use care when lifting or moving the mainframe to avoid personal
injury while performing the installation procedures.

The VX1411 Mainframe comes a with 0.75-inch cable access area on the bottom
of the mainframe (1-inch with the feet installed for bench-top operation). You
can order the mainframe with an optional cable tray and install the cable tray
following the procedures in this section. The option comes with a butch plate to
mount cable connectors at the rear of the cable tray.

The cable tray option can be installed three different ways as shown in the
following illustrations. In each example, place the mainframe upside-down or on
one of the sides on a clean working surface and follow the instructions in the
illustrations. To install the cable tray you need a T-15 and a T-20 Torx Driver.

1–6

Figure 1–1 on page 1–7 shows how to install Option 1U to provide a cable tray
depth of 1.75 inches.

Figure 1–2 on page 1–8 shows how to install Option 1U to provide a cable tray
depth of 2.5 inches.

Figure 1–3 on page 1–9 shows how to install Option 1U to provide a cable tray
depth of 4.25 inches.

You can modify the butch plate to accept cable connectors at the rear of the
mainframe. Specific instructions for modifying the butch plate are not given
since the locations, types, and size of connectors vary with each application.

VX1411 MainFrame Instruction Manual

Remove 4

4

inside screws.

Getting Started

1 Remove 4 feet.

Loosen 4

2

outside screws.

3 Remove 2 rails.

Install feet (optional)

Install cable tray and

tighten 4 screws.

5

Figure 1–1: Installing the Option 1U as a 1.75-inch deep cable tray

Install butch plate.

6

(optional)

VX1411 MainFrame Instruction Manual

1–7

Getting Started

1 Remove 4 feet.

Install feet (optional)

Install cable tray and

tighten 4 screws.

Reinstall 4 screws

from feet.

3

2

Figure 1–2: Installing the Option 1U as a 2.5-inch deep cable tray

4

Install butch plate.
(optional)

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VX1411 MainFrame Instruction Manual

1 Remove 4 feet.

Getting Started

2 Remove 4 inside screws.

3 Loosen 4 outside screws.

Install cable tray and

tighten 4 screws.

Install 4 screws; do

not tighten.

Turn 2 rails 90_.

Install feet (optional)

6

5

4

7

Install butch plate.
(optional)

Figure 1–3: Installing the Option 1U as a 4.25-inch deep cable tray

VX1411 MainFrame Instruction Manual

1–9

Getting Started

Rackmount Installation

Install the Rackmount

Kit Hardware

The procedures for installing the rackmount kits are nearly identical for the
Option 1R and 2R kits. You can install the Option 1R kit to either recess the
mainframe from the front of the mainframe rack or to extend it out of the
mainframe rack. However, you can only install the Option 2R kit so that the
mainframe recesses into the rack.

The steps for installing the rackmount kits consist of installing the rackmount
hardware to the mainframe and then installing the mainframe in the rack.

You will need the following tools to install the rackmount options:

H T-15 Torx Driver
H T-20 Torx Driver
H #2 Phillips Screw Driver

Refer to Figure 1–4 and perform the following steps to install the rackmount kit
hardware:

1. Remove the rubber feet from the mainframe.

2. Determine whether you want to install the VX1411 Mainframe so that it

extends out of the rack or is recessed within the rack.
If you want to extend the VX1411 Mainframe from the front of the rack,

position the rackmount bracket as shown on the right side of Figure 1–4. If
you want to recess the VX1411 Mainframe in the rack, position the
rackmount bracket as shown on the left side of Figure 1–4.

3. Determine how far you want to recess or extend the VX1411 Mainframe and

install the rackmount adapter as shown using two 8-32 screws (included with
the kit). Similarly, install the other bracket on the other side of the main­frame.

NOTE. To comply with VXIplug&play mounting specifications, position the
rackmount adapter at the mounting holes with the adjacent identifier keys (See
Figure 1–4). This results in 3.960 inches (10.06 cm) from the module panel
mounting surface to the rack frame mounting surface.

1–10

VX1411 MainFrame Instruction Manual

2 Screws

VXI Plug & Play
position key

Getting Started

Latch is

located at

the rear.

Track

5 Screws

Handle

2 Screws

Bracket

Figure 1–4: Installing the rackmount kit hardware

4. Remove the five 8-32 screws from both sides of the mainframe.

5. Attach the left and right inside tracks to the sides of the VX1411 Mainframe

using five 8-32 flathead screws. Orient the button latch so that it faces away

from the mainframe and toward the rear.

Bracket

VX1411 MainFrame Instruction Manual

1–11

Getting Started

Install the Mainframe

in the Rack

Use the following procedure to install the VX1411 Mainframe in the rack:

1. Identify the right and left slide-out track assemblies: find the date code label

on each assembly. The assembly to be mounted in the left side of the rack
(the side nearest the left side of the mainframe when it is mounted in the
rack) has a date code that ends with LH (for left hand). The right assembly
has a date code ending with RH.

2. Measure the distance between the front and rear rail of the rack.

3. Align the rear bracket to the right slide-out track as shown in Figure 1–5.

Note that the rear bracket has two pairs of mount-through holes. When
aligning the bracket and the track, select a pair of holes that mount the rear
bracket so the flange-to-flange distance (see Figure 1–5) matches the front
rail to rear rail spacing that you just measured in step 2.

NOTE. If necessary, refer to the rackmount kit instructions for detailed installa­tion information.

4. Attach the rear bracket to the right slide-out track using two 10-32 screws

and a bar nut as shown in Figure 1–5. Leave the screws loose so that you can
adjust the overall length of the slide-out track assembly when installing the
mainframe in the rack.

5. Repeat steps 3 and 4 to assemble the left slide-out track assembly.

Outer track

Button latch is closest
to top of track.

Front flange (mounts to
front rail of rack)

Front of

instrument

Inner track

Left slide-out track assembly

Figure 1–5: Assembling the slide-out track assemblies

1–12

VX1411 MainFrame Instruction Manual

Getting Started

6. Select the mounting position in the rack: select two 0.5-inch spaced holes in

the front rail and verify that the 1.5-inch and 14.00-inch clearances exist

relative to the mounting holes as shown in Figure 1–6.

NOTE. The 14-inch vertical clearance is only valid for the mainframe without the
rubber feet and cable trays. Refer to Figures 4–3, 4–4, on page 4–10, for
information on vertical clearances of the mainframe with cable tray options.

304.8 mm
(12.0 in)

355.6 mm
(14.0 in)

Left-front rail

38.1 mm
(1.5 in)

12.7 mm (0.5 in)

(for correct position of

securing holes)

Figure 1–6: Vertical clearance for rack installation (standard mainframe)

7. Select the mounting method according to the rack type.

To mount the slide-out tracks with the front and rear flanges outside of the
front and rear rails, use method A shown in Figure 1–7 when doing step 8.
Add a bar nut to the installation only if the rails have untapped holes.

VX1411 MainFrame Instruction Manual

1–13

Getting Started

To mount with front and rear flanges inside of the rails, use mounting
method B shown in Figure 1–7 when doing step 8. This mounting method
assumes untapped holes.

8. Using the mounting method determined from the previous step, secure the

right slide-out track assembly to the front and rear rails. Seat the screws
fully, but lightly, to adjust the mounting later.

9. Tighten the screws left loose in step 4 to fix the front to rear flange spacing

of the slide-out track assembly.

10. Repeat steps 6 through 9 to mount the left slide-out track assembly.

Left slide-out track Left slide-out track

Use a bar nut if front

rails are not tapped.

Left-front rail

10-32 Pan head screw

(4)

Mounting method A Mounting method B

Left-front rail

10-32 Flat head

screw (4)

Use two flat head screws if the cabinet

rails have countersunk mounting holes;

otherwise use two pan head screws.

10-32 Pan head

screw (4)

Figure 1–7: Installing the slide-out track assemblies in the rack (top view)

WARNING. Installing the VX1411 Mainframe in the rack requires at least two
people. Because of the size and weight of the mainframe, installing the main­frame alone can result in personal injury or equipment damage. One person
should be on the left side of the mainframe with one hand holding the left front
handle and with the other hand underneath the mainframe. The other person
should do likewise on the right side of the mainframe.

11. Fully extend the inner tracks of each slide-out section out of the front of the

rack until they lock.

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VX1411 MainFrame Instruction Manual

Getting Started

12. Lift the mainframe and insert the left and right tracks that extend from the

rear of the mainframe into the ends of the tracks that you just extended.
Make sure that the tracks mounted on the mainframe slip just inside the inner
tracks that you extended earlier.

13. Slide the mainframe back until it stops.

14. Push to release the button latches, located on the outside of each track, and

continue to slide the mainframe all the way back into the rack cabinet.

15. Tighten the four screws that you left loose at the rear of the rack when you

performed step 8 and pull the mainframe part way out of the rack. (Tighten
the 10-32 screws using 28 inch-lbs of torque.)

16. Be sure that the screws that you left loose at the front of the rack are loose

enough to allow the slide-out track assemblies to seek the normal positions.

17. Tighten the screws and push the mainframe all the way into the rack. If the

tracks do not slide smoothly, readjust the level using the method described in
steps 15 and 16. (Tighten the 10-32 screws using 28 inch-lbs of torque.)

Install the Option 2R

Rackmount Door

18. Install the proper power cord at the rear of the mainframe.

Refer to Figure 1–8 and perform the following steps to install the rackmount
door for Option 2R:

1. Install the bottom halves of the two hinges to the left rackmount bracket as

shown in Figure 1–8.

2. Install the top halves of the hinges on the door.

3. Install the catch on the right rackmount bracket.

You can adjust the catch position forward or back to assure a flush fit
between the door and the rackmount bracket.

4. Lift the rackmount door and mate the door with the hinges.

VX1411 MainFrame Instruction Manual

1–15

Getting Started

Hinges

2 Flat head

screws

Rackmount

bracket

2 Flat head screws

2 Pan head

screws

Catch

Rackmount

door

Figure 1–8: Installing the rackmount door (Option 2R)

1–16

Rackmount

bracket

VX1411 MainFrame Instruction Manual

Configuration

Getting Started

After installing the mainframe you are ready to configure it for your applications.
If you have not already done so, install your VXIbus modules in the mainframe
following the installation guidelines for your VXIbus module.

NOTE. If some VXI modules do not install fully into the mainframe, it may be
necessary to remove the shutter and spring from the card guide. For some
double-wide modules it may be convenient to remove only one of the shutters
instead of disassembling the shutter. To remove the card guides refer a qualified
service person to Procedure 4: Removing the Card Guides beginning on page
6–9 in the Maintenance chapter.

Module Selection and

Design Guidelines

The VX1411 Mainframe is UL listed to UL 3111-1 and CAN/CSA C22.2
No. 1010.1 and is IEC 1010-1 compliant. You should use VXIbus modules with
the mainframe that are listed or designed to limit electric shock and fire.

H Investigate the possibility of fire hazards due to the availability of power

from the mainframe exceeding 150 W per slot. Use similar considerations
for VXIbus Modules that externally receive power greater than 150 W per
slot.

H Printed wiring boards should be flame rated UL 94V–1 or better.
H To prevent possible electrical shock, limit the voltage to the mainframe

interface or chassis to less than 60 VDC, 30 V

H Ensure that high voltage measuring inputs provide a means of limiting

unintended voltages that may reach the mainframe interface or chassis to less
than 60 VDC, 30 V

, or 42.4 Vpk.

RMS

, or 42.4 Vpk.

RMS

VX1411 MainFrame Instruction Manual

1–17

Getting Started

Install Empty Slot Panel

Fillers

If you have any unused (empty) slots in your mainframe, you may install the
empty slot panel fillers. Install either the optional single-wide or double-wide
fillers.

CAUTION. Use only Tektronix front panels; otherwise the shutters may activate,
effectively robbing airflow from installed modules. Installing the fillers provides
improved cooling for installed modules and improved EMI shielding.

Refer to Figure 1–9 for information on installing the slot fillers.

1–18

Single panel fillers

Double panel fillers

Figure 1–9: Installing the empty slot panel fillers

VX1411 MainFrame Instruction Manual