Tektronix IGS-5034-00 Instruction Manual

Instruction Manual

Technician Procedures
IGS-5034-00
Fibre Channel Transceiver Test System

070-9968-00

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 all safety
summaries prior to performing service.

Copyright  Tektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and
are protected by United States copyright laws and international treaty provisions.

Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the
Rights in T echnical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the
Commercial Computer Software – Restricted Rights clause at F AR 52.227-19, as applicable.

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.

Table of Contents

Getting Started

Reference

General Safety Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preface ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T erms Used in This Manual ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contacting T ektronix x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

Responsibilities 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operator Responsibilities 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T echnician Responsibilities 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Administrator Responsibilities 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Functional Check 1–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Description 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Software Organizational Flow 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Privileges 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T est Files 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T est File Format 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sending T est Files 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Startup Procedure 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changing the DUT T ype 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Shutdown Procedure 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Failure 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GPIB Addresses 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Error Messages 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ERROR Messages 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

F AIL Messages 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Special Error Messages 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications

Specifications 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Overview

System Overview 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Human Interface 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Laser Light Sources 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

External Exposure: T est Fixture Fibers 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Interior Exposure 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

i

Table of Contents

Test Fixture 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Circuit Boards 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optical Interconnections 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Micro Switches 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Solenoid Lock 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Logic 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital Control Signals 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

High Speed Inputs 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Outputs 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Error Detector 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Workstation 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

W orkstation Accessories 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GPIB Sun Interface 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Modem 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bar Code Scanner 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bar Code Scanner Power Supply 4–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pattern Generator Mainframe 4–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Data Generator Cards 4–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optical to Electrical Converter 4–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fiber Channel Filters 4–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital Oscilloscope 4–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sampling Head 4–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital Multimeter 4–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optical Attenuator 4–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RF Scanner 4–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital I/O Interface 4–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Laser Transmitter 4–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Supply 4–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optical Switches (1x2) 4–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optical Splitter 4–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optical Jumper Cables 4–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Duplex Optical Cable 4–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pogo Pins for T est Fixture ECB 4–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lock Solenoid 4–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Verification

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

Performance Verification Procedure 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adjustment Procedures

Optical Pathloss 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bar Code Scanner Positioning 6–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance

Special DUT s 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Static Precautions 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ii

System Self T est 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Performance Verification 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Diagrams

Table of Contents

Inspection, Cleaning, and Routine Replacement Procedures 7–3. . . . . . . . . . . . . . . .

General Cleanliness 7–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cleaning and Replacing the Fiber Optic Cables 7–4. . . . . . . . . . . . . . . . . . . . . .

Inspecting the T est Fixture 7–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing the Air Filters 7–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing the Pogo Probes 7–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Calibration 7–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting Procedures 7–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Other T est Procedures 7–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Computer 7–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bar Code Scanner 7–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Module Removal and Replacement 7–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Removing Instruments 7–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing Instruments 7–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Servicing the T est Fixture 7–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

iii

Table of Contents

List of Figures

Figure 1–1: IGS-5034-00 Fibre Channel Transceiver Test System 1–2. .

Figure 1–2: Test system shown with the front doors open 1–3. . . . . . . . . .

Figure 1–3: Test system shown with the rear doors open 1–4. . . . . . . . . .

Figure 2–1: Test system equipment locations, front view 2–2. . . . . . . . . .

Figure 2–2: Test system equipment locations, rear view 2–3. . . . . . . . . . .

Figure 2–3: Software organizational flow chart 2–6. . . . . . . . . . . . . . . . . .

Figure 6–1: Bar code scanner adjustment screws 6–8. . . . . . . . . . . . . . . .

Figure 7–1: Wrist strap grounding connections 7–3. . . . . . . . . . . . . . . . . .

Figure 7–2: Position of duplex optic fiber in test fixture and screw

locations 7–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 7–3: Duplex fiber optic cables 7–5. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 7–4: Test fixture removal 7–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 7–5: Accessing fan filter 7–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 7–6: The Pogo probes 7–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 7–7: Through-hole Pogo probe replacement 7–10. . . . . . . . . . . . . .

Figure 7–8: Test fixture removal 7–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

List of Tables

Table 2–1: Test system instruments 2–4. . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 2–2: Rack cabinet and test fixture hardware 2–5. . . . . . . . . . . . . . .

Table 2–3: Instrument GPIB addresses 2–11. . . . . . . . . . . . . . . . . . . . . . . .

Table 3–1: Test system characteristics 3–1. . . . . . . . . . . . . . . . . . . . . . . . .

Table 4–1: Logic levels vs. microswitch and solenoid physical states 4–4

iv

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. To avoid potential hazards, use this
product only as specified.

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 Fire or
Personal Injury

Use Proper Power Cord. Use only the power cord specified for this product and

certified for the country of use.
Use Proper V oltage Setting. Before applying power, ensure that the line selector is

in the proper position for the power source being used.
Connect and Disconnect Properly . 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.

Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and marking on the product. Consult the product manual for further ratings
information before making connections to the product.

Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.

Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.

Use Proper Fuse. Use only the fuse type and rating specified for this product.
Avoid Exposed Circuitry. Do not touch exposed connections and components

when power is present.
Wear Eye Protection. Wear eye protection if exposure to high-intensity rays or

laser radiation exists.
Do Not Operate With Suspected Failures. If you suspect there is damage to this

product, have it inspected by qualified service personnel.

Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

v

General Safety Summary

Keep Product Surfaces Clean and Dry .
Provide Proper Ventilation. Refer to the manual’s installation instructions for

details on installing the product so it has proper ventilation.

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:

WARNING

High Voltage

vi

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Protective Ground

(Earth) T erminal

CAUTION

Refer to Manual

Double

Insulated

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 mains power by means
of the power cord or, if provided, the power switch.

Use Caution When Servicing the CRT. To avoid electric shock or injury, use
extreme caution when handling the CRT. Only qualified personnel familiar with
CRT servicing procedures and precautions should remove or install the CRT.

CRTs retain hazardous voltages for long periods of time after power is turned off.
Before attempting any servicing, discharge the CRT by shorting the anode to
chassis ground. When discharging the CRT, connect the discharge path to ground
and then the anode. Rough handling may cause the CRT to implode. Do not nick
or scratch the glass or subject it to undue pressure when removing or installing it.
When handling the CRT, wear safety goggles and heavy gloves for protection.

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.

To avoid electric shock, do not touch exposed connections.
X-Radiation. To avoid x-radiation exposure, do not modify or otherwise alter the

high-voltage circuitry or the CRT enclosure. X-ray emissions generated within
this product have been sufficiently shielded.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

vii

Service Safety Summary

viii

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Preface

This document contains maintenance and repair information for the IGS-5034-00
Fibre Channel Transceiver Test System. Information about operation and
modification of the test system is located in two other manuals as follows:

H IGS-5034-00 Fibre Channel Transceiver Test System User Manual
H System Administrator Procedures:IGS-5034-00 Fibre Channel Transceiver

Product manuals for individual system components are also provided.

Terms Used in This Manual

This manual uses the following terms:

H “Test system,” “system,” or “tester” refers to the IGS-5034-00 Fibre

H “Device under test,” “DUT,” or device refers to the fiber channel transceiver

Test System Instruction Manual

Channel Transceiver Test System

H “uucp” refers to UNIX-to-UNIX-copy and is an automated method of

transferring files and mail between two UNIX systems via modem

H “cu” refers to Call-UNIX and is a manual method of logging into one UNIX

system from another UNIX system via modem

H “/etc/rc.local” refers to an ASCII file containing standard UNIX commands

that are executed near the completion of power-up of the system

H “cron” or “crontab” refers to the standard UNIX job scheduler and the ASCII

schedule file that it uses

H “lpr” refers to the standard UNIX printer routines

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

ix

Preface

Contacting Tektronix

Service
Support

For other
information

To write us Tektronix, Inc.

Contact your local Tektronix distributor or sales office. Or, visit
our web site for a listing of worldwide service locations.

http://www.tek.com
In North America:

1-800-TEK-WIDE (1-800-835-9433)
An operator will direct your call.

P.O. Box 1000
Wilsonville, OR 97070-1000

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Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Getting Started

Getting Started

Product Description

This chapter introduces the test system and gives an overview of the
responsibilities of the operator, technician, and system administrator.

The test system performs manufacturing product verification testing upon a fibre
channel transceiver, also called the device under test (DUT).

Using the test system, the operator can quickly verify whether the DUT is good
or bad. The test system checks specific parameters of the DUT in areas such as
bit-error-rate, optical levels, and pulse parameters. After testing the DUT, the
system displays a message telling the operator if the DUT passed or failed.
System software also documents test results for each DUT tested; this test data is
accessible by the system administrator and the technician.

Figure 1–1 shows the test system as it looks during normal operation.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

1–1

Getting Started

1–2

Figure 1–1: IGS-5034-00 Fibre Channel Transceiver Test System

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Getting Started

Figure 1–2 shows the test system with the cabinet door open in preparation for
maintenance or service.

Figure 1–2: Test system shown with the front doors open

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

1–3

Getting Started

Figure 1–3 shows the test system from the rear with the doors open.

1–4

Figure 1–3: Test system shown with the rear doors open

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Accessories

Responsibilities

Getting Started

The test system includes several accessories as follows:

H SFTP_DUT, 2 (system self test procedures)
H Technician_DUT
H Golden_DUT (2)
H Shutdown_DUT (2)

There are three different users that interface with the system: the operator, the
technician, and the system administrator. The following descriptions give a brief
overview of the responsibilities of each.

Operator Responsibilities

Technician

Responsibilities

The responsibilities of the operator are as follows:

H Executing system verification tests (SFTP_DUT and Golden_DUT tests)
H Testing production DUTs
H Interpreting system prompts
H Calling the technician to handle system errors
H Following procedures for cleanliness and static control

The responsibilities of the technician are as follows:

H Starting up the test system
H Shutting down the test system
H Reconfiguring the system for the appropriate DUT adapter and test set
H Maintaining the cleanliness of the test fixture, DUT, and static control

equipment

H Maintaining lint free gloves, sticky mats, covers, and so on

H Maintaining ground straps, shoe straps, jackets, and so on
H Changing the fiber optic cables
H Changing the air filters
H Removing instruments from the rack to send for calibration

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

1–5

Getting Started

H Reinstalling instruments and reconnecting cables on return from calibration
H Responding to system problems reported by the operator

H Interpreting error messages
H Detecting failures like fans, blowers, monitor, and so on
H Localizing problems

H Deciding when a problem requires outside assistance

H Knowing when to call for help
H Knowing what not to try to do

System Administrator

Responsibilities

The responsibilities of the system administrator are as follows:

H Responding to email notices of errors that have occurred in the test system
H Data analysis support: selecting, obtaining
H Installing and supporting data analysis software
H Assisting users in interpreting the data (technician support)
H Diagnosing what is causing the problem in the test system
H Providing interpretation of error messages for the technician
H Maintaining uucp

H Monitoring uucp log files to confirm error-free transfers
H Modifying uucp configuration files for frequency and time of calls

H Backups

H Performing system backups to preserve test results
H Maintaining free file space
H Deleting old test results from system

1–6

H Maintaining cron
H Printer tasks

H Enabling and disabling print queues
H Monitoring print queue for proper operation
H Modifying printer configuration files for new printers

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Functional Check

Getting Started

H Software Modifications

H Understanding the architecture and implementation of the test software

H Making enhancements to the test system software

To verify correct test system operation, you should perform the functional check
procedure, as described in the Operating Basics chapter of the IGS-5034-00
Fibre Channel Transceiver Test System User Manual. For more information
about these tests, refer to the Performance Verification chapter of this manual.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

1–7

Getting Started

1–8

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Reference

Reference

System Description

This chapter provides some general reference information about the test system.
Included is a brief description of the system from a technical viewpoint,
procedures for starting up and shutting down the system, and some information
about error messages.

Figures 2–1 and 2–2 show the test system instrument locations. Tables 2–1 and
2–2 list the test system instrument descriptions.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

2–1

Reference

1

2

3

15

14

13
12
11

10

4

5

6

9

8

7

Figure 2–1: Test system equipment locations, front view

2–2

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Reference

32

31

30

29
28

27

16

17

181920212223242526

Figure 2–2: Test system equipment locations, rear view

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

2–3

Reference

T able 2–1: Test system instruments

Nomenclature Description

S5FX1-85-32-P44
Option X560A

Test Fixture DetacthableTest Fixture for DUT 5

SP ARCstation 5 system
85 MHz microSPARC CPU
32 MBytes RAM
535 MByte internal hard disc drive
TurboGX graphics card
17 in color monitor

3.5 in internal floppy disc drive (Option X560A)
Sun OS 4.1.4 Operating System on Optical-CD
Port expansion SBus card - 4 Serial and 1 Parallel
Compact Keyboard for Voyager and SPARC

Index
no.

4
13

AT8A-03-04-01-02-4198 ELGAR GPIB programmable power

supply configuration AT8A-03-04-01-02-4198
2 each 7V01 (0 V to 7 V power module, 0 to 15 A)

1 each 20V01 (0 V to 20 V power module, 0 to 10 A
HFS9DG2 Data Generator Cards for HFS9003 (3 each) 8
HFS9003

Option 1R
A02463 Rack mount kit for a single Q8221 10
Q8221 Optical Power Meter 11
Q82202 Plug-in Unit Interface (1 each required for sensor) 12
CSA803A

Option 1R, 10
SD22 12.5 GHz Sampling Head for CSA803A 15
MPD-861C Marway MPD 861C power controller 1PH 24A 16
50-14000-008 Power supply for bar code scanner, 8 Vdc 17
400-53R-131 Broadband Communications Products, Inc. custom laser

Data Pattern Generator with rack mount option 9

Communication Signal Analyzer Oscilloscope rack mount

option and prescaler delete option

source instrument with rack mount.

Special Modification to Model 400 laser:

Wavelength = 780 nm

Bandwidth>750 MHz

Average optical power = +5 dBm

Extinct Ratio > 8:1

Delete Digital Input

7

14

18

2–4

Optical Switch Custom Tektronix, Inc. Optical Switch and housing for

P6701A
P6701A

Option 1

Optical/Electrical converter, 450 to 1000 nm, DC to

850 MHz, with FC connector option

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

19

inside
Optical
module
(19)

Reference

T able 2–1: Test system instruments (cont.)

Nomenclature

VXOA41
Option 01

VX4801 VXI Digitial I/O 21
Clock Generator Custom Tektronix, Inc. Fibre Channel Clock Generator 22

Description

VXI Optical Attenuator with FC input connector option 20

Index
no.

VX4320
Option 01

VX4234 VXI 4.5 Digital DMM 24
VX4240 VXI Transient Digitizer 25
VXIGPIB GPIB-VXI/C Slot 0 Controller 26
VX1410

Option 1R
A08012 FC Connector mounted on Q82214 28
Q82214 Short Wavelength Sensor (calibrated @ 780 nm) 29
FC266 SpecialTektronix, Inc. Filter with P6701A produces Fibre

FS622 Tektronix, Inc. Filter with P6701A produces Fibre Channel

Hayes 5300AM Hayes Accura 144 and Fax 144 modem with 14.4 k Baud

VXI RF Scanner 8 X 4:1 with slave interface 23

VXI Mainframe, 13 Slot with rackmount option 27

Channel 266 Mb/s transfer function (4th-Order Bessel
Thompson)

531 Mb/s transfer function (4th-Order Bessel Thompson)

capable, RS-232 serial interface

T able 2–2: Rack cabinet and test fixture hardware

30

31

32

Nomenclature Description

437-0209-01 2 bay equipment rack (36RU) includes: fan as-

semblies, power strips, copper grounding bus,
main power remote switch, side panels, rear
doors with locking assembly, vertical stabilizer kit,
top and bottom bezels, adjustable instrument

mounting bars, 4 in. swivel casters (4 per bay)
VD4080-99-1124 General Devices writing shelf and drawer 2
119-5079-00 Display Monitor rack mounting kit 3
6531-KB3M Industrial Computer rack mounted keyboard

drawer

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Location
(Figure 2–1)

1

6

2–5

Reference

Software Organizational

HARDWARE

UNIX

ADMIN.

DATA

LOGGING

Figure 2–3 shows the organization of the various software functional blocks.

Flow

Printer Port

lpr config.

DUT Test Results

Modem

uucp Logins

uucp config.

System Admin.

SFTP Results

Keyboard

SEQUENCE

& CONTROL

HARDWARE

SPECIFIC

TEST CODE

DUT Tester SFTP

test1

test2

test3

test...

Instrumentation

Operator I/O

Test Operator

Figure 2–3: Software organizational flow chart

Test Executive

test1

test2

test3

test...

Bar Code Scanner

DUT

2–6

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

System Privileges

Test Files

Reference

The technician has access to all standard UNIX utilities, has read-only access to
diagnostic and test result files, and is able to restart the test system application
software. The technician accesses the login prompt by inserting the Technician
DUT in place of the test DUT to exit the test system software. When the prompt
appears the technician can unlock the drawer holding the keyboard and access the
UNIX system.

The system administrator has root privileges: read and write access to all files on
the system. The system administrator is responsible for file system maintenance
and deletion of old test result files to maintain free space in the file system.

A separate file is created each time a part is inserted into the test fixture to be
tested. The name of that file is the same as the bar code identity of the part. If a
part is tested a second time, and the previous test result file is still on the system,
a numeric suffix is appended to the file name to distinguish the file.

Test File Format

An index file is created each day that the test system is in operation. All parts
tested during that day have an entry appended to that index file. The name of the
index file contains the time and date of creation. Creating a new index file each
day limits the size of the index file and makes it feasible to send the file from the
test system to the system administrator workstation via uucp.

Each time the System Functional Test Procedure is executed, the results of the
test are written to a file. The name of the file contains the time and date the
procedure was executed.

Test files follow a defined format and contain additional information, which
includes the result, the limits of the test, and the Pass/Fail information.

T est Record File Format. The test record file contains information as follows:

H Module bar code identifier
H Module test start date and time
H Keyword <additional information>
H Keyword <additional information>
H ...
H Module test end date and time

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

2–7

Reference

A “Keyword” is one of the test result variables, such as Optical_Power or
Extinction_Ratio.

T est Record Index File Format. The test record index file contains information as
follows:

H Index creation date and time
H Module 1 bar code identifier
H Module 1 test start date and time
H Module 1 test end date and time
H Module 1 pass/fail
H Module 2 bar code identifier
H ...

Sending Test Files

Test files are sent automatically by uucp. If you suspect a problem with test file
transmission, contact the system administrator.

System Startup Procedure

To start up the test system, follow these steps:

1. Check that the test fixture is empty; if not, remove any DUT present.

2. Access the Sun workstation keyboard; it is located in a locked drawer

3. Power on the test system using the power switch located in the upper right

beneath the test fixture.

corner of the equipment rack. If power does not appear, examine the Marway
Power Controller (right rear). The main breaker should be in the ON
position. The Standby switch should be in the Remote position for front
panel operation or in the Local position to bypass the front panel. As it starts
up, the workstation monitor displays status information and other messages.

2–8

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Reference

NOTE. Occasionally, the test system may report error conditions during the
power-up sequence. This is usually due to some anomaly that occurred during
shutdown (for example, if the system went down due to a power outage rather
than an orderly shutdown). The system is often able to recover from these error
conditions on its own. If the system responds with the login prompt with no
further intervention on your part, you should assume that the system recovered
correctly from the reported errors.

If, however, the system reports errors and asks for input (for example, regarding
disposition of files), the system has entered an unknown condition. Do not
attempt to interact further with the system. Call the system administrator for
assistance and report the condition of the system, along with any error messages
displayed.

4. At the login prompt, enter “test” as shown:



↵

Changing the DUT Type

After a few moments, the system returns a [test] prompt.

5. Wait one minute.

6. Type “wd” as shown:

 

7. When the system displays “READY FOR DUT” it is ready for production

testing.

8. Wait 20 minutes for the test system hardware to warm up.
This completes the power-up procedure.

To change the type of DUT being tested, follow these steps:

1. Open the test fixture lid.

2. To remove the DUT adapter currently in the test fixture (if any) loosen the

four screws on the DUT adapter, and carefully lift the adapter out of the test
fixture. Use the two “jack” levers to disengage the adapter.

↵

3. Place the new adapter in the test fixture, carefully align the pairs of interface

connectors underneath the adapter, and gently press the adapter into place.

4. Tighten the four screws on the DUT adapter finger-tight.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

2–9

Reference

System Shutdown Procedure

To shut down the system, follow these steps:

1. Access the Sun workstation keyboard. (It is located in a locked drawer.)

2. Insert the Shutdown DUT in the test fixture. The system responds with a

number of error messages (this is normal—you don’t need to respond) and a
series of shutdown messages.

3. At the # prompt, enter “/etc/halt” as shown:

Power Failure

# 

4. Wait about 20 seconds for several messages and finally the # prompt to

reappear.

5. When the # prompt reappears, power off the system by pressing the power

switch in the upper right corner of the test system.
Do not attempt to login to the computer until the system is powered back on.

If the test system has gone down due to a power failure, you will have to restart
the system. Follow the System Startup Procedure on page 2–8.

If power was removed from the system without first performing the shutdown
procedure, the next power-up of the system will take longer than normal. In this
situation the standard UNIX power-up will perform a check of the file system to
determine that there has been no damage done to the file system. If no problems
are found operation will continue as usual after this point. However, it is possible
that the data files that were open at the time of the power failure may not be
present on the system or that they may be truncated. If damage has been done to
the file system then standard UNIX system administration may be needed to
recover from the problems.

↵

GPIB Addresses

2–10

Each instrument on the GPIB bus has a unique address. All instruments
connected to the GPIB bus must have different addresses, and the addresses must
match what the test system software expects to see.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Reference

Table 2–3 shows the GPIB addresses expected by the system software for the
individual instruments. The address assigned to each instrument is not the factory
default address. Whenever an instrument is reinstalled (for example, after
calibration or repair) the instrument GPIB address must be set or confirmed
before starting production tests.

T able 2–3: Instrument GPIB addresses

Error Messages

National Instrument

Instrument

VXIC National Instrument Slot 0
Controller

VX4240 Transient Digitizer 2 1 1
VX4234 DMM 3 1 2
VX4320 RF Scanner 4 1 3
VX4801 Digital I/O 6 1 4
VXOA41 Optical Attenuator 7 1 5
CSA803A Oscilloscope 8 2 na
HFS9003 Data Generator 9 3 na
AT8000 Programmable Power Supply 10 4 na
Q8221 Optical Power Meter 11 5 na

device number

1 1 0

Primary
GPIB address

Secondary
GPIB address

There are two main categories of error messages: ERROR messages and FAIL
messages.

ERROR Messages

These messages often indicate a system problem, such as a bad cable. If the
system reports an error to a specific instrument, you should check the commu­nication path for that instrument, including GPIB and cable connections.

If you suspect a specific instrument is causing problems, you should run the
functional check using the SFTP_DUT. If the DUT passes the functional check
part of the test, then run the Golden_DUT portion of the test. If the Golden_DUT
passes the test, you should assume that the production DUT caused the error
message. If the Golden_DUT portion of the test fails, the path loss values may be
out of bounds. Check the optical connections.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

2–11

Reference

FAIL Messages

Special Error Messages

FAIL messages are usually due to a bad DUT. If you suspect a system error,
perform the functional check using the SFTP_DUT and the Golden_DUT. If the
system passes the functional check, you should assume that the production DUT
caused the error message.

The operator may refer to the technician when they see the following messages:
“Bad Scan” Message. The test fixture is unable to read the bar code on the DUT.

The operator should already have checked that the bar code is correctly placed
and undamaged. If the bar code labels are OK, the bar code scanner may be out
of alignment.

“No Lock” Message. Something is wrong with the solenoid lock assembly in the
test fixture. The following conditions are the most likely to cause this message:

H Power to the solenoid is disrupted
H Mechanical components of the solenoid lock assembly are damaged or

misaligned (see the exploded view diagram of the test fixture in the
Diagrams chapter of this manual)

H The solenoid itself is damaged
When the “No Lock” message occurs, you should call the system administrator.
“Optics did not engage” Message. The test fixture was unable to connect the

duplex SC optical cable to the DUT.
“Optics did not disengage” Message. The test fixture was unable to disconnect the

duplex SC optical cable to the DUT.

2–12

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Specifications

Specifications

Table 3–1 lists system-level characteristics.

T able 3–1: Test system characteristics

Characteristic Description

System Warm-up T ime 20 minutes
Ambient Temperature
Weight 1000 lbs (approximate)
Power Consumption < 24 A

For specifications pertaining to an individual instrument, refer to the manual(s)
for that instrument.

20_ C to 30_ C

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

3–1

Specifications

3–2

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

WARNING

The following servicing instructions are for use only by qualified personnel. To
avoid injury, do not perform any servicing other than that stated in the operating
instructions unless you are qualified to do so. Refer to all Safety Summaries
before performing any service.

System Overview

System Overview

WARNING. Class IIIb laser product present in this system. Personnel servicing
this equipment must be fully trained in laser safety procedures.

For normal production testing, the operator inserts the DUT into the test fixture,
captures the DUT, and closes the lid. The action of closing the lid initiates the
software routines to perform the tests. (A lid switch communicates to the
software, through digital I/O, that the test fixture is closed and ready.)

The electrical connections are made by way of pogo probes. When the test is
complete, the software activates an electrical solenoid to release the lid and the
display screen displays whether the DUT is good or bad. The lid is then opened
to its full extent so that the DUT can then be quickly exchanged for the next
DUT to be tested and the lid closed for the next test. An RS-232 interfaced bar
code scanner is included in the test fixture. The test fixture prevents any
hazardous laser beams from escaping the enclosure.

All test and measurement resources are standard catalog equipment which have
passed the appropriate governing regulations.

An RS-232 modem interface is provided for remote monitoring. The modem is
located inside the locked system cabinets. An appropriate phone connection
should be made to the modem inside the cabinet.

Human Interface

Power is turned on by a switch located at the top right of the test system. This
switch energizes a power controller which distributes power to the test system.
Test system interaction with the operator has been discussed in the previous
paragraphs. Technician (or system administrator) access to the test system can be
made by way of the keyboard, which is normally locked in its drawer.

Laser Light Sources

WARNING. Class IIIb laser product present. Do not disconnect optical fibers
unless required to do so for servicing. Observe laser safety precautions for active
laser components and attached optical fibers. Failure to observe these precau­tions can result in permanent eye damage.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

4–1

System Overview

The test system has three sources of laser light:

H An active DUT inserted into the test fixture with power applied
H The Symbol Technologies, Inc. LS 1220 bar code scanner
H The Broadband Communications Products, Inc. laser source instrument

This section describes the conditions involving laser safety and the measures
taken during system design and integration to minimize potential laser exposure
to users.

External Exposure: Test

Fixture Fibers

When the system doors are closed and locked the only optical path leading to
external emission of laser light is the DUT Rcv fiber connector inside the test
fixture.

Laser light from this port can be exposed only when there is no DUT in the test
fixture. The origin of this laser light is the BCP laser source.

The following measures are implemented in the system to protect the operator
from possible exposure to the BCP laser source at the exposed test fixture DUT
Rcv fiber connector:

H Under normal operating conditions, the system software always configures

the optical switches such that the BCP laser is not routed to the test fixture
connectors when the lid is open.

H The test fixture lid is locked and unlocked under software control to prevent

opening the lid during testing.

H The electrical hardware is prevented from completing the optical path to the

class III laser while the lid is open.

H In the event of optical switch control power loss, the default relaxation

position of the switches is to route the BCP laser signal away from the test
fixture connectors.

4–2

Interior Exposure

H Under normal operating conditions, the system software always disables the

optical attenuator output which blocks the output of the class III laser.

H The test fixture lid is captured in a trough so that when the lid is closed there

are no possible line-of-sight exposures available to laser light.

For technicians with access to the interior of the system, there are optical ports
which carry Class IIIb light levels and can pose laser exposure danger to the
human eye if proper precautions are not taken.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Test Fixture

System Overview

Some of the capabilities of the system which allow interior access to the system
without risk of exposure to the laser light are as follows:

H All laser light is carried through optical fibers, and cannot expose the human

eye while these fibers and their connections are intact.

H The BCP laser source is equipped with a power key, which allows the key

controller to lock the BCP laser source in the OFF position regardless of
system power.

The following text describes test fixture components.

Circuit Boards

Power

Optical Interconnections

Micro Switches

The test fixture has two custom circuit boards integrated into the test fixture.
These circuit boards are mounted on the inside of the test fixture.

One circuit board is attached to the main portion of the test fixture. The other is
attached to the removable DUT Adapter.

Pogo probe receptacles are mounted directly through the back side of the DUT
Adapter circuit board, and protrude into the test fixture. These pogo probes are
visible when the lid of the test fixture is open and there is not a DUT inserted in
the test fixture. (For information about the pogo probes, refer to Replacing the
Pogo Probes on page 7–8.)

The various microswitches mounted in the test fixture also have their signals
routed to the circuit board. The microswitches each have individual connectors.

The AT8000 provides three independent power supplies: +5 V for the test fixture,
+12 V for the solenoid, and +5 V for the DUT.

Standard fiber optic cables and connectors are used throughout; these fiber optic
components are 50 m-multimode compatible.

The test fixture is equipped with three microswitches to indicate certain states of
mechanical action. The three states include lid closure, successful insertion of
fiber optics into the DUT, and locked lid.

Solenoid Lock

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

The latching mechanism of the test fixture lid is equipped with a solenoid. The
solenoid, when driven, pulls a locking pin into place so that the lid of the test
fixture cannot be opened. When the solenoid is no longer driven, a spring returns
the locking pin to its original position such that the lid is no longer locked and
the operator may then open the lid.

4–3

System Overview

Logic

Table 4–1 describes the logic levels, the corresponding physical state of the
microswitches and the solenoid.

T able 4–1: Logic levels vs. microswitch and solenoid physical states

Signal (1x2 header color;

1-red; 2-brown)

LID CLOSED Lid of test fixture is open Lid is closed
LOCKED The locking pin is NOT in place Locking pin is in place; lid is prevented from being

FIBRE Engaged The fiber-to-DUT connection is OK The fiber-to-DUT connection is faulty
LID SOLENOID Current is allowed to flow through solenoid; solenoid

Optics valve Current activates valve for piston Air drives piston to release cable connection

Digital Control Signals

Physical state when digital I/O channel is high Physical state when digital I/O channel is low

opened

No current flow in solenoid; spring tries to force

tries to pull locking pin into LOCKED position

locking pin into UNlocked position

The VX4801 is capable of configuring its channels for either logical input or
output. The logic level of the instrument used is TTL, and the current drive
capabilities of its signals are limited.

The Digital I/O instrument has two separate channels of 48 digital signals each.
Each channel of 48 signals is divided into six 8-bit registers. The Digital I/O
instrument can be configured for TTL input or output in 8-bit blocks only.

High Speed Inputs

Outputs

Error Detector

The inputs and the accompanying clock which drive the DUT are carried from
the HFS9003 to the circuit board. On the circuit board these signals are termi­nated through 50 Ω to ground.

All of the TTL output signals received from the DUT (through the pogo probes)
are buffered before being sent to the 50 Ω connectors on the circuit board.

The buffering includes line drivers, which drop the signal of the original TTL
levels down to approximately 0.3 volt peak-peak.

The BER test of the system relies entirely upon the word comparator located on
the main circuit board.

4–4

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

System Workstation

System Overview

The entire test system is controlled though a single computer. This computer
(UNIX workstation) provides control over serial communication and GPIB
communication.

The system contains the following items: SPARCstation 5 system, Sun OS 4.1.4
Operating System (SC-P), 85 MHz microSPARC CPU, 32 MBytes RAM,
535 MByte internal hard disk drive, TurboGX graphics card, 17 inch color
monitor and 3.5 inch internal floppy disc drive (Option X560A).

Instrument name SP ARCstation 5 UNIX Workstation with Sun OS 4.1.4
Vendor Sun Microsystems Incorporated
Ordering information S5FX1-85-32-P44 , Option X560A

Quantity: one (1)

Ordering information SC-P

Quantity: one (1)

Workstation Accessories

Additional hardware includes a SUN-X-SB-400P (Port expansion SBus card - 4
Serial and 1 Parallel), a Compact keyboard for Voyager and SPARC series
systems (#320-1194) and a 6 foot keyboard Mini-DIN to mini-DIN cable
(#530-1442).

Instrument name SUN-X-SB-400P Port expansion SBus card

Vendor SunExpress (division of Sun Microsystems Inc.)
Ordering information SUN-X-SB-400P

Ordering information 320-1 194

Ordering information 530-1442

320-1 194 Compact keyboard for Voyager and SPARC
530-1442.Mini-DIN to mini-DIN cable

Quantity: one (1)

Quantity: one (1)

Quantity: one (1)

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

4–5

System Overview

GPIB Sun Interface

Modem

The Sun SPARC5 does not come equipped with an IEEE488 (GPIB) interface.
GPIB is provided through the addition of a National Instruments GPIB-SPRC-B
which interfaces to the Sun SBus and includes the needed software.

Instrument name GPIB-SPRC-B
Vendor National Instruments
Ordering information 776789-01

Quantity: one (1)

The modem is required for remote login to and from the site workstation and the
System Administrator workstation. The modem should be capable of baud rates
of 14,000 or higher, and be Hayes compatible in protocol.

Bar Code Scanner

Instrument name Modem: 5300AM Accura 144 and Fax 144
Vendor Hayes Microcomputer Products

PO Box 105203
Atlanta, GA 30348

Ordering information 5300AM

Quantity: one (1)

The Bar Code Scanner is used to read the DUT serial number located on each
DUT in a bar code format. The scanner is mounted as an integral part to the test
fixture. The optical scan beam is visible (standard 680nm type). This bar code
scanner uses an RS-232 interface. It is designed to read type 39 bar codes.

Instrument name LS 1220
Vendor Symbol Technologies, Inc.

116 Wilbur Place, Bohemia, NY 11716
Tel: [phone] or 1-800-SCAN-234
Fax: [phone]
Local Rep:
Systems Technical Sales
6950 S.W. Hampton St., Suite 308, T igard, OR 97223
Tel: [phone]
Fax: [phone]

Ordering information LS 1220-I200A

Quantity: one (1)

4–6

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Bar Code Scanner Power Supply

The power supply for the scanner is a 110 Vac to 8 Vdc adapter.

Instrument name 50-14000-008
Vendor Systems Technical Sales

Ordering information 50-14000-008

Pattern Generator Mainframe

The programmable pattern generator is comprised of a mainframe and data
generator cards. The HFS9003 is a mainframe that accommodates three data
generator cards.

System Overview

6950 S.W. Hampton St., Suite 308, T igard, OR 97223
Tel: [phone]
Fax: [phone]

Quantity: one (1)

Data Generator Cards

The HFS9003 can support up 12 channels of high speed stimulus. Although the
MIM1063 requirement is for 20 channels, the test fixture demultiplexes the 10
data bits from the HFS to create the 20 bits needed for the MIM1063. The two
remaining HFS channels are used for clocking the DUT and the test fixture.

Instrument name HFS9003 Three-Slot Mainframe
Vendor Tektronix, Inc.
Ordering information

(Mainframe)

HFS9003
Option 1R
Quantity: one (1)

Each Data Generator card provides 4 output channels. A total of 12 output
channels provide parallel 10-bit words, DUT clock, and the test fixture clock.

Instrument name HFS9DG2
Vendor Tektronix, Inc.
Ordering information

(modular cards)

HFS9DG2
Quantity: three (3)

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

4–7

System Overview

Optical to Electrical Converter

The Optical-to-Electrical Converter for this system is the Tektronix P6701A; this
converter is housed with the Optical Switch Module.

Instrument name P6701A Optical-to-Electrical Converter (FC input connector)
Vendor Tektronix, Inc.
Ordering information P6701A

Fiber Channel Filters

The system uses two filters: a Tektronix FS622 SONET filter and a custom-made
filter.

The Fibre Channel FC-PH specifications (A.1.2.2) states that all measurements
on the pulse parameters of the Fibre Channel Tx signal are to be made with an
O/E Converter and Filter combination which have a specific combined frequency
response. Such a combined frequency response is defined as a low pass fourth
order Bessel-Thompson curve with the 3 dB point at 0.75 the data rate (such as

0.75 x 265.625 MHz).

Option 01
Quantity: one (1)

In order to provide such a filter, Tektronix has provided the system with a custom
built FFC266. The FFC266 uses a filter component from an outside vendor that
is installed in a mechanical package identical to the Tektronix FS Sonet Filters
(FS52, FS156, and FS622).

Instrument name FFC266 filtering component (minus mechanical package)
Vendor Integrated Microwave

local Rep:Allis N.W.
Tony DeVore 206-828-0444

Ordering information part number 914325 (FFC266)

Instrument name FS622 Filter
Vendor Tektronix, Inc.
Ordering information FS622 Filter

Quantity: one (1)

4–8

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Digital Oscilloscope

Sampling Head

System Overview

The CSA803A digital sampling oscilloscope is used to measure all time domain
aspects of the DUT signals. It requires the presence of a sampling head such as
the SD22. Equipped with the SD22, the CSA803A gives 12.5 GHz of bandwidth.
This is used for Mask testing, Extinction Ratio measurements, and all high speed
timing measurements (rise and fall times, RC0, RC1, and Byte Sync width).

Instrument name CSA803A
Vendor Tektronix, Inc.
Ordering information

(Mainframe)

CSA803A
Option 1R, 10
Quantity: one (1)

The CSA803A digital sampling oscilloscope is used to measure all time domain
aspects of the DUT signals. It requires a sampling head, such as the SD22.

Digital Multimeter

Instrument name SD22
Vendor Tektronix, Inc.
Ordering information

(Mainframe)

SD22
Quantity: one (1)

The Digital Multimeter is a 4.5 digit DMM.

Instrument name VX4234
Vendor Tektronix, Inc.
Ordering information VX4234

Quantity: one (1)

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

4–9

System Overview

Optical Attenuator

RF Scanner

An Optical attenuator in the system simulates fiber-loss errors (reduce DUT
received power to test limits).

Instrument name VXOA41
Vendor Tektronix, Inc.
Ordering information VXOA41

Option 01
Quantity: one (1)

A programmable scanner routes signals between various sources and acquisition
instruments.

Instrument name VX4320
Vendor Tektronix, Inc.
Ordering information VX4320

Option 01
Quantity: one (1)

Digital I/O Interface

The Digital I/O instrument sources and receives the low frequency input and
output digital signals going to and coming from the test fixture.

Instrument name VX4801
Vendor Tektronix, Inc.
Ordering information VX4801

Quantity: one (1)

4–10

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Laser Transmitter

System Overview

The saturation BER test for the DUT requires an optical power of at least 0 dBm
at the receiver of the DUT. To achieve this power, a laser transmitter with
sufficient bandwidth and power is required. The power output of the laser
transmitter must overcome the optical losses incurred as the laser signal is routed
through the system, through the attenuator, and finally to the DUT receiver (a
loss of approximately 4 dB).

WARNING. The Model 400 Laser Transmitter is a Class IIIb laser product. The

following label on the equipment indicates hazard:

Observe laser safety precautions for active laser components and attached

optical fibers. Failure to observe these precautions can result in permanent eye

damage.

A laser transmitter is supplied by BCP for use in the system. This product is a
modified model 400 BCP transmitter that produces approximately 5dBm of
average power, greater than 750 MHz bandwidth, and only an analog input. The
digital input is deleted.

Instrument name 400-53R-131
Vendor BCP Inc.

305 East Drive, Suite A
Melbourne, FL 32904
Tel: [phone]
Fax: [phone]
Contact: Whit Cotten, VP Marketing

Ordering information 400-53R-131

Quantity: one (1)

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

4–11

System Overview

Power Supply

Optical Switches (1x2)

The ELGAR AT8000 power supply provides power to the DUT, the test fixture
logic, and the test fixture solenoids. The supply configuration includes GPIB,
front panel keyboard, two 7V01 (0 V to 7 V; 0 to 15 A) power modules, and one
20V01 (0 V to 20 V; 0 to 10 A) power module.

Instrument name AT-8000 ELGAR GPIB programmable power supply
Vendor Tektronix, Inc.
Ordering information A T8A-03-04-01-02-4198

Quantity: one (1)

The various optical paths in the system are routed by 1x2 optical switches.
Detailed Description: 1 X 2 Bypass Multimode Optical Switch, 50/125/250 um
Fiber Type, 3 mm Heavy Duty Leads, 33 cm 1 cm Lead Length, and FC/PC
Connector (each end).

Optical Splitter

These switches are located within the Optical Switch module.

Instrument name 7-99421-1, 1x2 Bypass Switch
Vendor AMP Global Passive Products Division

2525 E. Bayshore Rd.
Palo Alto, CA 94303
Phone: [phone]

Ordering information 7-99421-1

Quantity: four (4)

The optical splitter routes the DUT transmit to the DUT receive, and, at the same
time, views the DUT transmitter eye pattern with the oscilloscope.

Detailed Description: number of ports = 1 x 2, divide ratio= 50/50, fiber type =
50/125 m-multiple mode, package = orange, 3 mm, heavy duty, lead length
minimum = 35

 2 cm, wavelength = 780 nm, connector = FC/PC (each end).

4–12

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Optical Jumper Cables

System Overview

Instrument name AC1 100-TED596 50/50 Optical Coupler/Splitter
Vendor JDS-Fitel, Inc.

570 West Hunt Club Road
Nepean, Ontario, Canada, K2G 5W8
Phone: [phone]
Fax: [phone]

Ordering information AC1 100-TED596

Quantity: four (1)

Three multiple mode fiber optic cables connect the optical modules. These are
50/125 m Fiber Type, 3 mm Heavy Duty Leads, 40 cm long with FC/PC
connectors (each end).

Part name PC-2J-040CM, FC to FC fiber jumpers
Vendor Seiko USA

Torrence, CA
Contact: Terese Padjen
Phone:
[phone]

Ordering information PC-2J-040CM

Quantity: three (3)

Duplex Optical Cable

The optical cable used to interface the DUT optics to the test system is a multiple
mode duplex optical cable, 2m long, 50um fiber type with male SC connectors at
each end. As this cable has a short insertion life, replacements should be kept in
stock.

Part name C038946, SC Duplex Cable Assembly
Vendor Alcoa Fujikura Ltd.

T el: 1-800-395-4388
Rep:
Debbie Christopher
T el: 1-800-395-4388

Ordering information C038946

Quantity: one (1)

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

4–13

System Overview

Pogo Pins for Test Fixture ECB

Several different styles (IDI Series 0 and 1) of spring contact “pogo” pins and
receptacles are required to probe the DUT inside the test fixture as follows:

H MIM1063 uses: SX0A2.2G (80 each), SX0H2.2G (4 each), and

RX0WW.016 (84 each)

H OESW uses: SX0U2.2G (4 each), RX0WW.016 (4 each), SX1A2G (20

each), and R1RP (20 each)

H MIM266 and MIM531 use: SX1A2G (53 each), and R1RP (53 each)

Part name Series SL, Size 1
Vendor Interconnect Devices Inc.

Ordering information Quantity: see above

address: 5101 Richland Ave.;
Kansas City , KS 66106
T el: 913-342-5544
Fax: [phone]

Lock Solenoid

The test fixture has a solenoid which drives the locking pin of the latch. The
solenoid is used to lock the lid to prevent the operator from inadvertently opening
the test fixture during the middle of a test. This is a 12 VDC tubular solenoid
with approx. 32

Ω impedance; 15 ounce pulling force at 12 VDC and rated for

continuous use (such as when current is driving the solenoid as long as lid is
locked).

Part name Tubular Solenoid
Vendor GUARDIAN Electric Manufacturing Co.

address: Woodstock, Illinois 60098.
Available from Newark.

Ordering information T 6x12-CONT-12D

Quantity: one (1)

4–14

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Performance Verification

Performance Verification

This chapter describes how to check that the test system is performing correctly.

Equipment Required

To perform this procedure you need the following items:
H SFTP_DUT; a special DUT that has internal connections different than that

of a standard DUT.

H Golden_DUT; a special DUT with “guaranteed good” performance specifica-

tions. There is a Golden_DUT for each type of fibre channel transceiver.

NOTE. The SFTP_DUT and Golden_DUT have special bar codes. If these bar
codes are damaged, misaligned, or incorrect, the test system cannot correctly
recognize the DUTs.

Performance V erification Procedure

There are two procedures you can follow to verify the performance of the
system: the System Self Test procedure and the System Performance Verification
procedure.

System Self Test

To run the System Self Test, install the SFTP_DUT in the test fixture, and then
close the lid to start the test. When the System Self Test is initiated, the software
queries every instrument on the GPIB bus. Once communications have been
established, every instrument is asked for its ID which is compared to the
expected value. All instruments with self-test capability are requested to initiate
the self test and report the results to the system controller. The results of the self
test, along with the time it was run, are stored in the system log file.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

5–1

Performance Verification

If any instrument does not respond, responds with the wrong ID, or fails its self
test, this information is reported to the operator. The individual instrument which
is reported as not operational should be evaluated using its own service manual.

After the GPIB communications phase of the SFTP test, the instrument verifies
as many electrical connections as possible.

System Performance

Verification

Due to the mixed signal (optical and electrical) nature of this test system, it is
impossible to completely self test the system. As a result, the performance of the
optical portions of the test fixture are tested with a DUT which has been
previously calibrated and is known to perform within certain bounds. The DUT
used for this purpose is the Golden_DUT.

Once the Golden_DUT is installed in the test fixture and the lid is closed, the
system performs the functional and performance tests on the Golden_DUT. Any
results outside acceptable bounds are noted. This tests the functional aspects of
the system.

5–2

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Adjustment Procedures

Adjustment Procedures

This chapter describes the optical pathloss calibration and how to adjust the bar
code scanner.

Optical Pathloss

The procedure used here requires checking the power at the system’s optical
switch input from the Attenuator (laser source) as a reference. Then the optical
transmit path from the DUT to the power meter is checked by using a jumper to
the laser source. After that, a jumper is placed to loop the DUT transmit to the
DUT receive and the remaining losses found. This eliminates the need to handle
the BCP output directly and thus reduce the possibility of exposure to the high
power (Class III) source.

During this procedure, care is taken to minimize the risk of exposure to the
Class III laser source. At each step of this procedure, the optical attenuator is
used to block the light output of the laser source. The optical output of the
attenuator is enabled only when the technician responds to the computer prompt
which causes the measurements to begin. At the completion of the
measurements for a given set of steps, the output of the laser is once again
blocked by the attenuator. In addition, the attenuator controls the output power to
less than 0 dBm.

To execute the pathloss calibration procedure, type the following while in the
“test” directory:

<test directory prompt> pathloss

This begins the computer prompted procedure. This procedure compares the
measured results against an expected range of values. If the actual measurement
is out of range. the procedure is terminated and a suitable advisory message is
displayed to aid in resolving the problem.

Step 1: Access the optical connections from the rear of the system rack and
measure the optical power from the laser source as a reference.

The first step is to measure a reference power level against which all other path
measurements are compared to compute the relative pathloss. The following
messages appears at the beginning of the procedure.

DANGER: Accessible Class III laser in use!

Disable laser source before connecting and
disconnecting optical cable to high power BCP laser.
Do not look directly into laser light. Permanent eye
damage may result.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

6–1

Adjustment Procedures

Step:

1. Unlock the rear door (behind the computer display).

2. The Fixture must be installed with the lid closed for

the entire procedure.

3. At the VXOA41 Attenuator, disconnect the optical cable

attached to the connector labeled 'OPTICAL OUT.'

4. At the Optical Switch Module, disconnect the optical cable

attached to the connector labeled 'OPTICAL OUTPUT To Power

Meter.'

5. Attach the free end of the optical cable to the VXOA41

'OPTICAL OUT.' The Q82214 Sensor should now be attached
to the VXOA41 Attenuator.

The first thing that the procedure checks is if the test fixture lid has been closed.
If it has not, the procedure terminates and displays the following message:

**** Fixture Lid must be CLOSED!

If this occurs, you must restart the procedure as shown above, or testing
continues. If the measured power is between +3 dBm and –3 dBm, the step has
been successfully completed with the following message momentarily displayed
(three seconds):

Ref Optical Power from laser source = <value> dBm

If the measured power is not between +3 dBm and –3 dBm, one of the following
messages displays and the procedure terminates.

If the power is greater than +3 dBm:

*** ERROR Optical Power is too high

BCP laser may need recalibration

If the power is between –3 dBm and –10 dBm:

*** ERROR Optical Power is too low

Check optical cable connections
Optical cables may need cleaning
BCP laser and or VXOA41 may need recalibration

6–2

If the power is less than –10 dBm:

*** ERROR Optical Power is too low

Check optical cable connections
Verify that BCP key switch is in ON position

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Adjustment Procedures

Optical cables may need cleaning
BCP laser and or VXOA41 may need recalibration

Step 2: Measure optical power at the DUT transmit through total path.
The next step is to measure the optical power from the output of the optical

attenuator through the DUT transmit paths, to the oscilloscope and to the power
meter. The following messages display:

DANGER: Accessible Class III laser in use! Disable laser source

before connecting and disconnecting optical cable to
high power BCP laser. Do not look directly into laser
light. Permanent eye damage may result.

Step:

6. Reconnect the Q82214 Sensor to the Optical Switch connector
labeled 'OPTICAL OUTPUT to Power Meter.'

7. Connect the VXOA41 Attenuator output to the PC-to-SC
adapter and attach it to the Duplex-SC cable end at the
DUT Transmit.

Press <cr> when ready. Type s<cr> to skip.

The first DUT transmission path measured starts at OS1 (optical switch
number 1), through OS3, to OS2, to OS4 and then to the power meter. Hence the
notation of “Optical Power OS1–3–2–4.” If the measured power is between
0 dBm and –8 dBm, the step has been successfully completed with the following
message momentarily displayed (three seconds):

Optical Power OS1-3-2-4 = <value> dBm

If the measured power is not between 0 dBm and –8 dBm, one of the following
messages displays and the procedure terminates.

       

*** ERROR Optical Power is too high

BCP laser may need recalibration

         

*** ERROR Optical Power is too low

Check optical cable connections
Optical cables may need cleaning
BCP laser and or VXOA41 may need recalibration

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

6–3

Adjustment Procedures

       

*** ERROR Optical Power is too low

Check optical cable connections
Verify that BCP key switch is in ON position
Optical cables may need cleaning
Optical Switch Module may have failed
BCP laser and or VXOA41 may need recalibration

The next DUT transmission path measured starts at OS1 (optical switch
number 1) through OS4 to the power meter. Hence the notation of “Optical
Power OS1–4.” If the measured power is between +3 dBm and –3 dBm, the step
has been successfully completed and the following message is displayed for
about 3 seconds:

Optical Power OS1-4 = <value> dBm

If the measured power is not between +3 dBm and –3 dBm, one of the following
messages displays and the procedure terminates.

If the power is greater than +3 dBm:

*** ERROR Optical Power is too high

BCP laser may need recalibration

If the power is between –3 dBm and –10 dBm:

*** ERROR Optical Power is too low

Check optical cable connections
Optical cables may need cleaning
BCP laser and or VXOA41 may need recalibration

If the power is less than –10 dBm:

*** ERROR Optical Power is too low

Check optical cable connections
Verify that BCP key switch is in ON position
Optical cables may need cleaning
Optical Switch Module may have failed
BCP laser and or VXOA41 may need recalibration

The final DUT transmission path measured starts at OS1 (optical switch
number 1), through the optical splitter to the P6701A OE (Optical to Electrical)
converter. Hence the notation of “Optical Power at OE Converter.” If the
measured power is between 0 dBm and –9 dBm, the step has been successfully
completed with the following message is displayed for about 3 seconds:

6–4

Optical Power at OE Convertor = <value> dBm

If the measured power is not between 0 dBm and –9 dBm, one of the following
messages displays and the procedure terminates.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

If the power is greater than 0 dBm:

*** ERROR Optical Power is too high

BCP laser may need recalibration

If the power is between –9 dBm and –15 dBm:

*** ERROR Optical Power is too low

Check optical cable connections
Optical cables may need cleaning
BCP laser and or VXOA41 may need recalibration

If the power is less than –15 dBm

*** ERROR Optical Power is too low

Check optical cable connections
Verify that BCP key switch is in ON position
Optical cables may need cleaning
Optical Switch Module may have failed
BCP laser and or VXOA41 may need recalibration\n");

Adjustment Procedures

Step 4: Measure loss from attenuator to DUT receive. This is used when setting
the power levels for Receiver Sensitivity and Receiver Saturation.

This step measures the power loss from the optical attenuator through OS3, to
OS2, through an optical jumper connecting the DUT transmit to the DUT
receive, to OS1, to OS4 and to the power meter. This result is given the name
“Optical Power OS3–2–1–4.” This is followed by the final measurement of loss
from the optical attenuator through OS3, to OS2, to OS4 and to the power meter.
The result from this measurement is given the name “Optical Power OS3–2–4.”
The following message is displayed:

DANGER: Accessible Class III laser in use! Disable laser source

before connecting and disconnecting optical cable to
high power BCP laser. Do not look directly into laser
light. Permanent eye damage may result.

Step:

8. Reconnect the VXOA41 Attenuator to the Optical Switch
connector labeled 'OPTICAL INPUT from Attenuator and
remove PC-to-SC adapter.'

9. Connect an SC-to-SC optical jumper cable at the DUT end.

Press <cr> when ready. Type s<cr> to skip.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

6–5

Adjustment Procedures

If the measured power for OS3–2–1–4 is between +3 dBm and –5 dBm, the step
has been successfully completed with the following message is displayed for
about 3 seconds:

Optical Power OS3-2-1-4 = <value> dBm

If the measured power is not between +3 dBm and –5 dBm, one of the following
messages displays and the procedure terminates.

If the power is greater than +3 dBm:

*** ERROR Optical Power is too high

BCP laser may need recalibration

If the power is between –5 dBm and –10 dBm:

*** ERROR Optical Power is too low

Check optical cable connections
Optical cables may need cleaning
BCP laser and or VXOA41 may need recalibration

If the power is less than –10 dBm:

*** ERROR Optical Power is too low

Check optical cable connections
Verify that BCP key switch is in ON position
Optical cables may need cleaning
Optical Switch Module may have failed
BCP laser and or VXOA41 may need recalibration

If the measured power for OS3–2–4 is between +3 dBm and –5 dBm, the step
has been successfully completed with the following message is displayed for
about 3 seconds:

Optical Power OS3-2-1-4 = <value> dBm

If the measured power is not between +3 dBm and –5 dBm, one of the following
messages displays and the procedure terminates.

If the power is greater than +3 dBm:

*** ERROR Optical Power is too high

BCP laser may need recalibration

If the power is between –5 dBm and –10 dBm:

6–6

*** ERROR Optical Power is too low

Check optical cable connections
Optical cables may need cleaning
BCP laser and or VXOA41 may need recalibration

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Adjustment Procedures

If the power is less than –10 dBm:

*** ERROR Optical Power is too low

Check optical cable connections
Verify that BCP key switch is in ON position
Optical cables may need cleaning
Optical Switch Module may have failed
BCP laser and or VXOA41 may need recalibration

Step 5: Completion of the procedure and preparation to resume production
testing.

This step marks the completion of the manual manipulation of cables. The
following message is displayed:

DANGER: Accessible Class III laser in use! Disable laser source

before connecting and disconnecting optical cable to
high power BCP laser. Do not look directly into laser
light. Permanent eye damage may result.

Step:

10. Disconnect the SC-to-SC optical jumper cable.

11. Replace protective covers on all adapters.

Press <cr> when completed.

When completed the results are summarized in the following displayed message:

Results:

Ref_Power_BCP_Atten <value in dBm>
Pathloss_Rx_To_Power_Meter <value in dB>
Pathloss_Tx_To_Power_Meter <value in dB>
Pathloss_Tx_To_OE <value in dB>
Pathloss_OS1-3-2-4 <value in dB>
Pathloss_OS3-2-4 <value in dB>

After the results are listed, the next step is decide whether or not to save the
results for use by the tester. The following message displays:

Do you want to save these new values? (y=yes n=no)

If yes, type the letter y and return. The following message displays as an
acknowledgement:

Values have been saved.

Otherwise the message is:

Values not saved.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

6–7

Adjustment Procedures

Finally, close the rear system door and type the instruction below to enter the
new results into the system environment. Without this step, the new results,
although saved, are not used for the tests. This message prompts you to enter
them into the environment.

Procedure Completed:

Close and lock the rear door.

Type the following to update the environment variables:

source path_vars

Bar Code Scanner Positioning

To position the bar code scanner, follow these steps:

1. Loosen (1/4 turn) the two adjustment screws shown in Figure 6–1.

2. Position the scanner by sliding he screw heads along the slots.

3. Gently tighten the screws when complete.

Adjust

6–8

Do not adjust

Figure 6–1: Bar code scanner adjustment screws

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Maintenance

Maintenance

Special DUTs

The system needs regular maintenance for best performance, which includes
changing air filters in the VX1410 mainframe, cleaning or replacing the test
fixture fiber optic cables, and replacing test fixture Pogo probes. This chapter
includes information about removing and replacing test system modules, and
some information about troubleshooting.

The special DUTs (SFTP_DUT, Technician DUT, Golden_DUT, and
System_Shutdown_DUT) should be kept in a static-safe enclosed case. This
limits dust accumulation and protect the DUTs. Visual inspection upon every
usage of these DUTs is recommended to ensure that they are not damaged.

The Golden DUT performance should be verified on a monthly basis. If it does
not produce acceptable results, then the optical signal paths should be verified
and the fiber optic cable should be cleaned.

To create a new Golden DUT, place a Golden bar code label on a DUT which is
known to pass all tests. Be sure that the bar code label is for the correct type of
DUT type (

MIMG).

Static Precautions

To create a new SFTP_DUT, you must build one using the schematic in the
Diagrams section, and then place an SFTP bar code label on the DUT.

The DUTs being tested are sensitive to static damage. When working with static­sensitive devices, you must observe standard anti-static precautions as follows:

CAUTION. Failure to observe these anti-static precautions can result in damage
to the DUT. Damage to electrical components may not be immediately apparent.
Always follow the precautionary measures when handling static-sensitive DUTs.

H Minimize handling of static-sensitive DUTs.
H Transport and store static-sensitive DUTs in their original containers or on

conductive foam. Label any package that contains static-sensitive DUTs.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

7–1

Maintenance

H Discharge static voltage from your body by wearing a wrist strap when

handling these DUTs. Handling of these DUTs should be performed only at a
static-free workstation by qualified personnel. (See Figure 7–1 for wrist strap
connection location.)

H Do not put anything capable of generating or holding a static charge on the

work surface.

H Avoid handling DUTs in areas that have a floor or work-surface covering

capable of generating a static charge.

H Pick up DUTs by the body, never by the leads or pins.
H Do not slide DUTs over any surface.

CAUTION. The body of the test fixture is capable of holding a static charge. An
ionizer is provided to nullify any static buildup on the test fixture. Make sure that
the ionizer is powered on and that the ionizer air flow toward the test fixture is
not obstructed.

7–2

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Maintenance

Grounding jacks for wrist strap plug

Figure 7–1: Wrist strap grounding connections

Inspection, Cleaning, and Routine Replacement Procedures

Regular inspection and cleaning of the system is required for proper operation.

General Cleanliness

It is important that the test system and its surrounding area be kept clean and
dust-free. Doing so reduces maintenance costs, down time, and ultimately
increases the accuracy and reliability of the test results.

It is also important that the DUT is handled properly, so that it does not add any
further dust or dirt to the test fixture. Keep the optical connectors on the DUT
covered at all times except when testing.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

7–3

Maintenance

Cleaning and Replacing

the Fiber Optic Cables

Under normal operation the only fiber optic cables which are exposed to the
environment are the cables which connect to the DUTs. These cables are Duplex
SC cable type and the exposed ends are enclosed in the test fixture. This reduces
the exposure to dust and particulate contamination. However, these connectors
are inserted into many DUT couplings repeatedly during a day. This may result
in degradation of the fiber terminations.

Having clean fiber optic cables is critical to the performance of this system.

CAUTION. It is important that the fiber optic cables are kept clean at all times.
Dirty cables can result is loss of optical power, variable optical connections, or
damage to the DUT.

Cleaning the Fiber Optic Cables. If the test fixture fiber optic cable is suspected of
particulate contamination (for example if the power output of the DUT is not
reproducible) then it should be cleaned. To clean the fiber cable open the test
fixture. The fiber connector ends are accessible at this time. To clean the fibers
follow the directions on the fiber optic cleaning kit. If power readings still
fluctuate it is advisable to change the fiber optic cable.

Replacing the Fiber Optic Cables. The frequency of replacement for the cable
depends on the cleanliness and physical tolerances of the DUTs inserted into the
test fixture.

WARNING. Class IIIb laser product accessible during this procedure. The
following label on the equipment indicates hazard:

Invisible laser radiation is present when the fiber is disconnected from the
bulkhead. Wear laser safety goggles. Always avoid direct exposure to the beam.
Failure to do so can result in permanent eye damage.

To replace the fiber optic cable, follow these steps:

1. Insert the Technician_DUT into the test fixture and close the lid. This exits

the automatic test program.

2. When the system returns a prompt, open the test fixture and remove the

Technician DUT.

7–4

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Maintenance

3. Remove the old duplex fiber from the test fixture by removing the four

screws that retain the cable. Figure 7–2 shows the location of the screws.

Duplex fiber

Cable retainer

screws (4)

Figure 7–2: Position of duplex optic fiber in test fixture and screw locations

4. Feed the duplex end (with housing) of the new fiber through the conduit of

the test fixture located to the left of the lid. Figure 7–3 shows a duplex fiber.

Figure 7–3: Duplex fiber optic cables

5. From the rear of the system (door opened), carefully pull the cable through

so that you can later insert the cable ends into the SC connections on the
optical switched module.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

7–5

Maintenance

6. Insert the SC cable into the optical module located on the right side of the

VX1410 mainframe.

7. From the front of the system, attach the optical cable to the sliding actuator

(reverse of step 4).

8. Reinvoke the auto test program by entering “wd” at the UNIX prompt.

Inspecting the Test Fixture

The test fixture has precise mechanical assemblies. It should be inspected every
day for signs of obvious wear, such as bent pins. Care should be taken to ensure
that excess dust does not accumulate inside the test fixture. The bar code scanner
portion of the test fixture should be visually inspected for items that could block
its scanning range.

Replacing a DUT Adapter. To replace the DUT adapter, follow these steps:

1. Open the test fixture lid.

2. To remove a DUT adapter currently in the test fixture (if any), loosen the

four screws on the DUT adapter, carefully lift it out of the test fixture, and
use the two “jack” levers to disengage the adapter.

3. To install a DUT adapter, carefully align the pairs of interface connectors

underneath the adapter and gently press the adapter into place.

4. For the OESW DUT adapter, disconnect the four coaxial cables.

5. Place the correct DUT adapter into the test fixture and tighten the four

screws on the DUT adapter finger-tight.

Replacing the Base Unit. The base unit is the part that connects to the lever and
assembly. To replace the base unit, follow these steps:

7–6

1. Remove two 7/64 screws and remove the hose.

2. Remove the conduit.

3. Pull down the release lever and lift the base unit up and out from the system.

4. To install a base unit, place the supports in the cradle and align the unit. The

cradle captures the base unit so it cannot fall to the ground.

5. Reinstall the hose from the front of the system.
Figure 7–4 shows how to remove the test fixture.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Loosen two screws to

remove conduit clamp.

Maintenance

Pull lever to disconnect

fixture assembly.

Press to

unlock lever.

Figure 7–4: Test fixture removal

Replacing the Air Filters

Disconnect air
supply hose.

The test system, in general, uses unfiltered air flow except for the VX1410
mainframe. The frequency of replacement for its filter depends on the cleanliness
of the ambient environment. At a minimum, the filter should be checked at least
every three months.

The filter is accessed from the front of the system. Figure 7–5 shows the location
of the filter.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

7–7

Maintenance

VX1410 Mainframe

Figure 7–5: Accessing fan filter

Replacing the Pogo

Probes

Filter

Intake grill

Fan Filter Replacement. To replace the fan filter, follow these steps:

1. Remove the four screws holding the intake grill below the test fixture and

remove the grill.

2. Replace the filter and reinstall the grill.

Spring loaded Pogo probes are used to interface electrically to the DUT. Each of
these Pogo probes consists of two pieces: a probe tip with integrated spring and a
receptacle for the probe tip. (See Figure 7–6.)

7–8

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Maintenance

The receptacles for each probe are soldered into the circuit board mounted on the
underside of the test fixture. Corresponding to each receptacle location is a hole
in the delrin (machined, hard, black plastic) block of the test fixture; this provides
protection for the Pogo probes against possible damage.

DUT

Pogo probe assembly
(Spring loaded)

Delrin block

Receptacle

Figure 7–6: The Pogo probes

Damaged Pogo probes in the test fixture must be replaced. Damage to Pogo
probes is not limited to bent probes. During normal use, the probe can become
damaged internally, causing it to be permanently depressed below the level of the
others. Although it may be effective on a short-term basis to simply lift up the
probe to the level of the others, it is better to replace the probe with a new one.

To replace the Pogo probes, follow these steps:

1. Remove the damaged Pogo probe by lifting it straight up and out of its

receptacle. See Figure 7–7.

CAUTION. When pushing a Pogo probe down into its position, very little force is
required to seat the probe into its position. Excessive downward force seats the
Pogo probe at too low a height and possibly damages its receptacle.

2. Place a new Pogo probe into the Pogo receptacle. Using a narrow tool such

as a small hex (allen) wrench or center punch, gently depress the probe until
it is seated. When it is fully seated, the probe should sit at the same height as
the others.

This completes the Pogo probe replacement procedure.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

7–9

Maintenance

DUT

Pogo probe

Delrin block

Receptacle

DUT adapter
circuit board

Figure 7–7: Through-hole Pogo probe replacement

To replace the receptacle, follow these steps:

1. Use the Delrin block as a spacer to set the Pogo probes to the correct height.

2. Solder the receptacle into place.

This completes the receptacle replacement procedure.

Calibration

7–10

Individual instruments should be maintained and calibrated at regular intervals of
one year.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Troubleshooting Procedures

The test system can provide rudimentary functional and operational
troubleshooting of the system itself in case there is a failure. This section
describes how the system should be diagnosed for any problems.

If there appears to be a problem with the system, follow these steps:

1. Observe all instruments and ensure that the power indication light is on. Turn

on any instruments that appear to be off. If the instrument cannot be turned
on then refer to the individual instrument service manual for recommended
service procedures.

2. Verify all GPIB addresses.

3. After all instruments are on, place the SFTP DUT in the test fixture and close

the lid. This causes the system software to verify that all programmable
instruments are on the communications bus. The SFTP also causes all
instruments to undergo any internal self test routines that they have.

Maintenance

NOTE. If there is a GPIB communication error it is always a good idea to open
the back of the system rack and ensure that all GPIB cables are properly
mounted. The system cannot differentiate between a bad GPIB connection and an
instrument that does not respond.

4. If the instrument identification phase of the SFTP passes then the continuity

test is performed. This tests as many electrical signal paths as possible.

NOTE. If power to the test fixture is interrupted, the test system hangs. The system
cannot monitor test fixture power.

5. If the continuity test passes then place the Golden DUT in the test fixture and

close the lid. The performance of the Golden DUT has been verified to meet
all of the fibre channel specifications. The system runs all functional and
performance tests on the Golden DUT. Any significant variations are noted.

If the system passes these tests then there is probably a problem with the DUT(s)
in question. If the problem persists please call your Tektronix service
representative.

NOTE. The modem communication path is not tested by the system. This is the
responsibility of the system administrator.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

7–11

Maintenance

Other Test Procedures

Some aspects of the system cannot be tested with the self test procedure.
Following is a list of the items whose performance must be independently
verified.

Computer

Bar Code Scanner

The computer is not tested via the SFTP routine. If no messages appear on the
screen then there is most likely a problem with the computer or the computer
system. Refer to the computer system manual to ensure that the computer is
working properly.

If a valid DUT is placed in the test fixture, and no message appears or the
message says “BAD SCAN” then one of the following problems is probably
occurring:

H The DUT is misaligned. Check that the DUT is properly aligned. If the DUT

is properly aligned then check to make sure that the bar code is readable.

H The bar code scanner operation can be checked by closing the test fixture

with no DUT. There is a bar code in the top of the test fixture which the bar
code scanner reads when the lid is closed. If the scanner reads this bar code
correctly, the system should display “READY FOR DUT.” If the bar code
scanner cannot read the bar code, the system displays a “BAD SCAN”
message.

Module Removal and Replacement

Occasionally, instruments must be removed from the test system for calibration
or repair. The following text describes some rules to observe when removing or
replacing test system instruments.

Removing Instruments

7–12

NOTE. Do not remove or replace the Marway Power Controller from the test
system. Contact your Tektronix representative for servicing information.

When removing a plug-in module from an instrument or an instrument from the
rack, you need to follow some rules.

Removing Plug-In Modules. When removing a plug-in module from an instrument,
you must first turn off power to the instrument before removing the plug-in
module.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Maintenance

Removing Instruments. To remove an instrument from the rack, follow these
steps:

1. Turn off power to the instrument

2. Unplug the instrument power cord.

3. Remove the instrument GPIB cable, grounding cable, and other connections,

if any.

4. Remove the instrument.

Replacing Instruments

When replacing a plug-in module in an instrument or an instrument in the rack,
you need to follow some rules.

Replacing Plug-In Modules. When replacing a plug-in module in an instrument,
follow these steps:

1. Turn off power to the instrument before replacing the plug-in module.

2. Make sure that the replacement module is exactly the same type of module

and that it is replaced in exactly the same slot.

3. Turn on power to the instrument.

4. Verify that the module GPIB address is set correctly. (Refer to GPIB

Addresses on page 2–10.) Check with the system administrator to make sure
that the listed GPIB addresses are current.

5. Execute the Performance Verification procedure (page 5–1) using the SFTP

DUT and the Golden DUT.

Installing Instruments. When replacing an instrument in the rack, follow these
steps:

1. Make sure that the replacement instrument is exactly the same type of

instrument and that it is replaced in exactly the same slot.

2. Replace the instrument grounding cable.

3. Replace the instrument GPIB cable and other connections, if any.

4. Plug in the instrument power cord.

5. Turn on power to the instrument.

6. Verify that the instrument GPIB address is set correctly. (Refer to GPIB

Addresses on page 2–10.) Check with the system administrator to make sure
that the listed GPIB addresses are current.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

7–13

Maintenance

7. Execute the Performance Verification procedure (page 5–1) using the SFTP

DUT and the Golden DUT.

Servicing the Test Fixture

Loosen two screws to

remove conduit clamp.

If the test fixture needs to be serviced, it can be removed as shown in Figure 7–8.

NOTE. The test fixture has the formal part description of IGS-1578-35. Use this
part number when contacting Tektronix concerning the test fixture.

Pull lever to disconnect

fixture assembly.

Figure 7–8: Test fixture removal

7–14

Press to

unlock lever.

Disconnect air
supply hose.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

Diagrams

Diagrams

This section contains wiring diagrams for the test system, and schematic
diagrams for the test fixture. For instrument-level diagrams, refer to the
individual instrument manuals.

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System

8–1

Diagrams

8–2

Technician Procedures: IGS-5034-00 Fibre Channel Transceiver Test System