Tektronix OA 5000 Appendix F: Maintenance

OA 5000 Series User Manual A --- 1 5

Appendix F: Maintenance

This appendix describes how toperform routine maintenance on the

OA 5000 Series OpticalAttenuators. There are no user-serviceable parts in

the OA 5000. Should yourinstrument need service, contact your nearest

Tektronixservice representative.

The followingmaintenance procedures are discussed in this chapter.

HCleaning the Optical Port

HChanging Optical PortConnectors

If the OA 5000 performance appears degraded, the opticalfiber and optical

port may be dirty.Clean the fiber connector with a clean cloth. To clean an

optical port, perform the followingsteps:

1. Turnthe power supply off or pull the OA 5000 out of the power module.

2. Use a Phillips screwdriver to remove t he four screws that secure the

bulkhead connector to the frontpanel (see Figure A-1 on page A ---16).

3. Gently pullthe bulkhead out of the unit and unscrew the fiber connector.

Be careful not to pullbeyond the fiber slack. If there is insufficient slack

or if youaccidently push the disconnected fiber back into the instru-

ment, then perform the followingthree steps:

a. Using a flat-blade screwdriver,turn the securing screw on the right-

side cover 90_counter-clockwiseand remove the side cover (See

Figure A-1).

b. Youwill now have access to the optical fiber. Unscrew it from the

bulkhead if necessary or push itback through the front panel.

c. Reinstall the cover when finished. Turnthe securing screw to lock

the side cover.

4. Using a soft, lint-free cloth with a h igh-quality glass cleaner, clean the tip

of the fiber cable.

5. If available, use low-pressure compressedair or canned air to blow any

dirt out of the bulkhead connector.If compressed air is not available,

then the bulkhead will have to be taken apart and cleaned. Refer to the

Changing the OpticalPort Connectors procedure, on page A ---17, for

informationabout bulkhead disassembly.

6. After cleaning the bulkhead, reconnect the fiber and installthe bulk-

head. Be sure to reinstall the dust coverchain.

Cleaning the

Optical Ports

Contents

Main Page WARRANTY Page ECDeclarationofConformity Page Welcome Page Contents A Quick Tour User Reference Programming Appendices Page List of Figures List of Tables Safety Symbols and Terms Specific Precautions Page Page Page Page Installation CAUTION Removing the OA 5000 A Quick Tour Preset the OA 5000 Storing and Recalling Settings Setting a Reference Value Settings at Power Up Page Page Operator Overview The User Reference Section Operator Overview 2 --- 2 Figure 2-1: OA 5002 Front Panel User Reference Enabling/Disabling Attenuation WARNING Page Setting Attenuation Levels Specifying the Wavele ngth Setting the Attenuation Level Page Page Setting the GPIB Address Page Setting the Reference Level Measuring Insertion Loss Approximating Signal Power Page Storing and Recalling Attenuation Levels Page Page Page Setting Up the Instrument Controllers Using the GPIB Interface GPIB Requirements Setting the GPIB Address Page Command Syntax Clearing the OA 5000 ATT:DB 10 Command and Query Structure Commands Queries Headers in QueryResponses Command Entry Abbreviating Commands Concatenating Commands Message Terminators Argument Types Block Arguments Numeric Arguments Syntax Diagrams Page Commands Common Commands and Queries Device Commands and Queries ADJusting? (Query Only) ALLev? (Query Only) Page BLRN *CAL? (Query Only) *CLS (No Query Form) DESE DISable DISPlay *ESE *ESR? (Query Only) EVEnt? (Query Only) EVMSG? (Query Only) EVQty? (Query Only) FACTORY (No Query Form) HEADer *IDN? (Query Only) *LRN?orSET? *OPC *PSC RECall (No Query Form) REFerence *RST (No Query Form) *SRE *STB? (Query Only) STORe (Store Attenuation) *TST? (Query Only) VERBOSE *WAI (No Query Form) WAVelength Status and Events Registers Status Registers The Standard Event Status Register (SESR) The Status Byte Register (SBR) Enable Registers The Device Event Status Enable Register (DESER) The Event Status Enable Register (ESER) The Service Request Enable Register (SRER) The Enable Registers and the *PSC Command The Output Queue The Event Queue Queues Event Handling Sequence Status and Events Conflicts 3 --- 4 0 Programming Messages Page Page Page Page Page Appendix A: Accessories Standard Accessories Optional Accessories Page Appendix B: Specifications Page Page Page Appendix C: Interface Specifications Interface Messages Page GPIB Function Subsets Page Appendix D: Using the *OPC Query/Command Page Appendix E: Packing for Shipment Page Appendix F: Maintenance Cleaning the Optical Ports Page Changing the Optical Port Connectors Page Page Page Appendix G: Product Verification Equipment List Power Up Display Modes GPIB Address Setting Attenuation Range Shutter Attenuation and the DISABLE button 1310 nm: Page 1550 nm: 850 nm (except OA 5002): Page Appendix H: Replaceable Parts Item Names Parts Ordering Information Using the Replaceable Parts List Indentation System Abbreviations Page AppendixH: Replaceable Parts A --- 3 4 Appendices CROSS INDEX --- MFR. CODE NUMBER TO MANUFACTURER AppendixH: Replaceable Parts OA 5000 Series User Manual A --- 3 5 Page Page Page Index A B C D E F G H N O P Q R T U V W