Tektronix OA 5000 - Manual

OA 5000 Series User Manual iii Contents Welcome i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contents iii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . List of Figures vii . . . . . . ....

Welcome iv Programming Setting Up the Instrument 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Controllers 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using the GPIB Interface 3-1 . . . . . . . . . . . . . . . . . . . . . ...

OA 5000 Series User Manual v Status and Events 3-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Registers 3-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Queues 3-39 . . . . . . . . . . . . . . . . . . . . . ....

OA 5000 Series User Manual vii List of Figures Figure 1-1: Installing the OA 5000 into the Power Module 1-2 . . . . . . . . . Figure 1-2: OA 5002 Front Panel 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2-1: OA 5002 Front Panel 2-2 . . . . . . . . . . . . . . . . . . . . . ...

Welcome viii List of Tables Table 3-1: BNF Symbols and Meanings 3-5 . . . . . . . . . . . . . . . . . . . . . . . . Table 3-2: Command Message Elements 3-6 . . . . . . . . . . . . . . . . . . . . . . Table 3-3: Comparison of Header On and Off Responses 3-7 . . . . . . . . . Table 3-4: Commands Commo...

OA 5000 Series User Manual ix Safety You might be eager to begin using your OA 5000, but please take a momentto review these safety precautions. They are provided for your protectionand to prevent damage to the Optical Attenuator. This safety informationapplies to all operators and service personnel...

Safety x Observe all of these precautions to ensure your personal safety and toprevent damage to either the OA 5000 or equipment connected to it. Optical Output WARNING To prevent damage to your eyes, avoid looking into the opticaloutput port while there is an optical signal connected to the inputpo...

OA 5000 Series User Manual xi Do Not Operate in Explosive Atmospheres The OA 5000 provides no explosion protection from static discharges orarcing components. Do not operate the OA 5000 in an atmosphere of explo-sive gasses.

OA 5000 Series User Manual 1 --- 1 Installation The OA 5000 Optical Attenuator is designed to operate in a TektronixTM 5000 Series Power Module or the right-hand slot of a TektronixOCP 5502. To ensure safe operation, follow all precautions listed in thePower Module’s Operator Manual. Do not attempt ...

A Quick Tour A Quick Tour 1 --- 6 Step 21: Recall the second stored setting by pressing RECALL 2 . Note that the attenuation readout is now 29.50 dB. Remember that youset STORE 2 to 21.50 dB. The display shows the value: 21.50 --- ( --- 8.00)= 29.50 dB. Step 22: Push the MODE button so that just the...

OA 5000 Series User Manual 2 --- 1 Operator Overview The User Reference section is arranged as an alphabetic list of topics. Eachtopic covers one aspect of the operation of the OA 5000. Five topics followthis operator overview: H Enabling/Disabling Attenuation H Setting Attenuation Levels H Setting ...

OA 5000 Series User Manual 2 --- 5 Setting Attenuation Levels Because the OA 5000 automatically adjusts the attenuator to correct fordifferent wavelengths, it is important, for attenuator accuracy, to correctlymatch the displayed wavelength with the wavelength of the signal going intothe unit. Setti...

OA 5000 Series User Manual 2 --- 9 Setting the GPIB Address Setting the GPIB address is accomplished using the ADDR (SET) button and the LEVEL ADJUST knobs (Figure 2-4). DISABLE MIN ATT STORE 1 RECALL 1 STORE 2 RECALL 2 REMOTE MODE SET REF COARSE FINE WAVE --- LENGTH ADDR (SET) Turning either knobch...

OA 5000 Series User Manual 2 --- 11 Setting the Reference Level You can set the display of the OA 5000 to reflect the attenuation of thesystem rather than just the attenuation provided by the OA 5000. For exam-ple, if your system insertion loss is 1.55 dB, you could set the referencevalue to --- 1.5...

OA 5000 Series User Manual 3 --- 1 Setting Up the Instrument This section tells you how to prepare the OA 5000 Optical Attenuator for usewith a remote controller or computer. The first part of this section explainshow to connect the OA 5000 to a controller or computer through the GPIB interface. The...

Setting Up the Instrument Programming 3 --- 2 GPIB Connector Figure 3-1: GPIB Connector Location GPIB Requirements Observe these rules when using your OA 5000 with a GPIB network: H Each device on the bus must be assigned a unique device address; notwo devices can share the same device address. H Do...

OA 5000 Series User Manual 3 --- 5 Command Syntax You can control the OA 5000 through the GPIB using a large group of com-mands and queries. This section describes the syntax these commands andqueries use and the conventions the OA 5000 uses to process them. Thecommands and queries themselves are li...

Command Syntax OA 5000 Series User Manual 3 --- 7 Commands Commands cause the OA 5000 to perform a specific function or change oneof its settings. Commands have the structure: H [:]<Header>[<Space><Argument>[<Separator><Argu- ment>]...] Queries Queries cause the OA 5000...

Command Syntax Programming 3 --- 8 H Enter commands in upper or lower case. H Precede any command with blank characters. Blank characters includeany combination of the ASCII control characters 00 through 09 and 0Bthrough 20 hexadecimal (0 through 9 and 11 through 32 decimal). H The OA 5000 ignores c...

Command Syntax OA 5000 Series User Manual 3 --- 9 is a valid message that sets the attenuation to 15 dB, the display modeto dB, and responds with the disable status and the adjusting status.Concatenated commands and queries are executed in the order re-ceived. Here are some invalid concatenations: H...

Command Syntax Programming 3 --- 10 The argument of a command may be in one of several forms. The individualdescriptions of each command tell which argument types to use with thatcommand. Block Arguments One OA 5000 command utilizes a block argument form: Symbol Meaning <Block> A block of data...

Command Syntax OA 5000 Series User Manual 3 --- 11 Symbol Meaning <NR1> Signed integer value <NR2> Floating point value without an exponent <NR3> Floating point value with an exponent <NRf> Flexible numeric argument {NR1|NR2|NR3} . A suffix com- posed of a multiplier (letter ...

Commands Programming 3 --- 16 <QString>::= <Message>;[<Command>] <Command> is the command that caused the error and may be returned when a command error is detected by the OA 5000. As much of the com-mand will be returned as possible without exceeding the 60 character limit o...

Commands OA 5000 Series User Manual 3 --- 17 ATTen:DB? ATTen:DBR? ATTen:DB <NRf> ATTen:DBR <NRf> ATTen:MIN ATTen:MIN? ATTen? ATTen : DBR <space> ? MIN DB DBR DB ? <NRf> MIN ? If you make a query without an argument (for example, ATTen?), the re-sponse is the same as that for ...

Commands Programming 3 --- 20 DESE 209 sets the DESER to binary 11010001, which enables the PON, URQ, EXE,and OPC bits. DESE? might return the string :DESE 186 , showing that the DESER contains the binary value 10111010. DISable To query or set the status of the light shutter, use the DISable term. ...

Commands OA 5000 Series User Manual 3 --- 25 Table 3-6: FACTORY Front Panel Settings (Cont.) Front Panel Parameter Setting DISABLE OFF WAVELENGTH 1300 The FACTORY command does not alter the following items: H The state of the GPIB (IEEE Std 488.2) interfaces. H The selected GPIB address. H Calibrati...

OA 5000 Series User Manual 3 --- 35 Status and Events The OA 5000 provides a status and event reporting system for the GPIBinterfaces. This system informs you of certain significant events that occurwithin the OA 5000. The OA 5000 status handling system consists of five 8-bit registers and twoqueues...

Status and Events OA 5000 Series User Manual 3 --- 37 Table 3-9: SBR Bit Functions Bit Function 7 (MSB) Not used (always 0). 6 RQS (Request Service ), obtained from a serial poll. Shows that the OA 5000 requests service from the GPIB controller. 6 MSS (Master Status Summary), obtained from *STB? que...

Status and Events Programming 3 --- 38 The Event Status Enable Register (ESER) — is shown in Figure 3-9. It controls which types of events are summarized by the Event Status Bit(ESB) in the SBR. Use the *ESE command to set the bits in the ESER, and use the *ESE?query to read it. PON URQ CME EXE DDE ...

Status and Events OA 5000 Series User Manual 3 --- 39 The OA 5000 status and event reporting system contains two queues: theOutput Queue and the Event Queue. The Output Queue The Output Queue stores up to 8000 bytes of a query response while it iswaiting to be output. The Output Queue is emptied eac...

Status and Events Programming 3 --- 40 Device Event Status Enable Register (DESER) Standard Event Status Register (SESR) Event Status Enable Register (ESER) Status Byte Register (SBR) Service Request Enable Register (SRER) EventQueue OutputQueue EventEventEvent ByteByteByte 1 2 3 4 6 7 5 PON URQ CME...

Status and Events OA 5000 Series User Manual 3 --- 41 Tables 3-10 through 3-15 list all the programming interface messages theOA 5000 generates in response to commands and queries. For most messages, a secondary message from the OA 5000 gives moredetail about the cause of the error or the meaning of...

OA 5000 Series User Manual A --- 1 Appendix A: Accessories Some accessories are included with the OA 5000. If you wish to purchaseoptional accessories, or purchase additional standard accessories, see aTektronix products catalog or contact your local Tektronix field representa-tive. H This manual, t...

OA 5000 Series User Manual A --- 3 Appendix B: Specifications The performance characteristics described in this appendix (Tables A-1through A-3) are valid under the following conditions: H The instrument must have been calibrated at an ambient temperaturebetween +20 _ C and +30 _ C. H The instrument...

OA 5000 Series User Manual A --- 7 Appendix C: Interface Specifications This appendix describes details of the remote interface of the OpticalAttenuator, that is, the GPIB. Normally, you will not need this information touse the OA 5000, but the information is useful when connecting to control-lers o...

OA 5000 Series User Manual A --- 13 Appendix E: Packing for Shipment If you ship the OA 5000, pack it in the original shipping carton and packingmaterial. If the original packing material is not available, package the instru-ment as follows: Step 1: Obtain a corrugated cardboard shipping carton with...

OA 5000 Series User Manual A --- 15 Appendix F: Maintenance This appendix describes how to perform routine maintenance on theOA 5000 Series Optical Attenuators. There are no user-serviceable parts inthe OA 5000. Should your instrument need service, contact your nearestTektronix service representativ...

OA 5000 Series User Manual A --- 21 Appendix G: Product Verification Refer to Table 4-1 for a list of the equipment required to verify the perfor-mance of your OA 5000 Series instrument. Table 4-1: Equipment Required for Performance Verification Description Minimum Use Specifications Recommendation ...

Appendix G: Product Verification Appendices A --- 22 Table 4-1: Equipment Required for Performance Verification Description Recommendation Minimum Use Specifications OA 5022,Optical inputand output fiber 1 to 5 m long, 62.5/125 m, FC/PC to FC/PC 2 Tektronix174-2322-00 OA 5032,Optical inputand output...

Appendix G: Product Verification OA 5000 Series User Manual A --- 23 Step 1: Push the MODE button until ATT is backlit and -REF is not backlit (these LEDs are green); H The MODE button itself should now be backlit (this LED is red). Step 2: Push the MIN ATT button; this will cause the instrument to ...

Appendix G: Product Verification Appendices A --- 24 H Set the WAVELENGTH(nm) display to read “ 1300 ”. H Push the WAVELENGTH button once more; check that the button is no longer backlit and that the MODE button is backlit. (After exiting the wavelength mode, the instrument may require a second or t...

OA 5000 Series User Manual A --- 31 Appendix H: Replaceable Parts This chapter contains a list of the components that are replaceable for theOA 5002, OA 5012, OA 5022, and OA 5032 Optical Attenuators. As de-scribed below, use this list to identify and order replacement parts. Replacement parts are a...

Appendix H: Replaceable Parts Appendices A --- 32 Indentation System This parts list is indented to show the relationship between items. Thefollowing example is of the indentation system used in the Descriptioncolumn: 1 2 3 4 5 Name & Description Assembly and/or ComponentAttaching parts for Asse...