• Prolonged storage under adverse conditions • Failure to perform intended measurements or functions If necessary, return the instrument to ILX Lightwave, or authorized local ILX Lightwave distributor, for service or repair to ensure that safety features are maintained (see the contact information on page xiv).
Technical specifications including electrical ratings and weight are included within the manual. See the Table of Contents to locate the specifications and other product information. The following classifications are standard across all ILX Lightwave products: • Indoor use only • Ordinary Protection: This product is NOT protected against the harmful ingress of moisture.
Returning an Instrument If an instrument is to be shipped to ILX Lightwave for repair or service, be sure to: Obtain a Return Authorization number (RA) from ILX Customer Service. Attach a tag to the instrument identifying the owner and indicating the required service or repair.
C H A P T E R Comments, Suggestions, and Problems To ensure that you get the most out of your ILX Lightwave product, we ask that you direct any product operation or service related questions or comments to ILX Lightwave Customer Support.
High output stability for all options is achieved by using ILX Lightwave’s proven laser diode current and temperature control technology. Each MPS−8033 comes with a standard GPIB interface and to close the loop with other lab measurement instruments, the instrument provides a TTL compatible trigger which is synchronized with the output of the internally modulated signal.
1550nm and spread over a 40 nm spectral width. High output stability is achieved by using ILX Lightwave’s proven laser diode current and temperature control technology. Due to the nature of the light source, the output is intrinsically unpolarized. Select the MPS−8033/55 for 10 mW of broadband output power, or the MPS−8033/65 for 20 mW.
I N T R O D U C T I O N A N D S P E C I F I C A T I O N S C H A P T E R Available Options and Accessories Available Options and Accessories Options and accessories for the MPS−8033 sources include: Table 1.1 Available Options...
I N T R O D U C T I O N A N D S P E C I F I C A T I O N S C H A P T E R Available Options and Accessories MPS-8033 Precision Source Specifications OUTPUT Wavelength:...
I N T R O D U C T I O N A N D S P E C I F I C A T I O N S C H A P T E R Available Options and Accessories General MPS-8033 Series Specifications TRIGGER OUTPUT Type:...
C H A P T E R OCAL PERATION This chapter describes how to install, adjust, and operate the MPS−8033 series fiber optic sources. It is divided into five sections covering installation, power−up, front panel and rear panel controls, and general operation.
L O C A L O P E R A T I O N C H A P T E R Installation AC Power Considerations The 8033 can be configured to operate at nominal line voltages of 100, 120, 220, or 240 VAC. Normally, this configuration is done at the factory and need not be changed before operating the instrument.
L O C A L O P E R A T I O N C H A P T E R Introduction to the MPS-8033 Front Panel Introduction to the MPS-8033 Front Panel The MPS−8033 front panel contains LED displays, switches, and a knob for control of the laser output.
L O C A L O P E R A T I O N C H A P T E R Introduction to the MPS-8033 Front Panel MODE Section When the CW switch is pressed the CW LED illuminates indicating the internal modulation function is disabled and a continuous wave output is enabled.
L O C A L O P E R A T I O N C H A P T E R Introduction to the MPS-8033 Front Panel Press the ON switch again to turn the output off. When the output is off, the display shows the desired optical output power.
L O C A L O P E R A T I O N C H A P T E R Introduction to the MPS-8033 Front Panel GPIB Address When the unit is in LOCAL mode, pressing the LOCAL/ADR switch causes the GPIB address to be displayed.
L O C A L O P E R A T I O N C H A P T E R Introduction to the MPS-8033 Front Panel display to cycle through the available display modes. The enunciator at the right of the display indicates which display mode has been selected.
L O C A L O P E R A T I O N C H A P T E R Back Panel Controls and Connections Back Panel Controls and Connections Refer to Figure 2.4 for the following discussions of back panel controls and connectors. TTL OUT Connector The TTL OUT connector is located in the upper left hand corner of the rear panel.
L O C A L O P E R A T I O N C H A P T E R General Operating Procedures General Operating Procedures The following sections present some guidelines for operation, as well as some common operating procedures.
L O C A L O P E R A T I O N C H A P T E R General Operating Procedures Set Reference Operation The reference level for the dB scale is set using the SET REFERENCE button. The following procedure indicates how to use this feature.
C H A P T E R EMOTE PERATION GPIB (General Purpose Interface Bus) is the common name for ANSI/IEEE Standard 488.2 1987, an industry standard for interconnecting test instruments in a system. Everything you can do from the front panel can also be done remotely, and in some cases, with more flexibility. In remote operating mode, the 8033 offers all of the features accessible from the front panel.
R E M O T E O P E R A T I O N C H A P T E R Basic GPIB Concepts Basic GPIB Concepts The information in this basic concepts discussion is normally not necessary to successfully operate the MPS−8033 through its GPIB interface, because your computer’s GPIB controller usually handles them for you.
R E M O T E O P E R A T I O N C H A P T E R Basic GPIB Concepts The GPIB Connector The standard GPIB connector consists of 16 signal lines in a 24−pin stackable connector. The extra pins are used for some twisted−pair wires.
R E M O T E O P E R A T I O N C H A P T E R Basic GPIB Concepts Other GPIB features include: • A concise and straight−forward command set • Full serial poll capability, with SRQ •...
R E M O T E O P E R A T I O N C H A P T E R Command Syntax While holding the SET REFERENCE switch, use the ADJUST knob to select the desired GPIB address. Release the SET REFERENCE switch to set the address into memory.
R E M O T E O P E R A T I O N C H A P T E R Command Syntax Terminators A program message terminator identifies the end of a command string. These are the valid terminator sequences: •...
R E M O T E O P E R A T I O N C H A P T E R Command Syntax Substitute Parameter Names For clarity in programming, the (Boolean) values of one and zero may also be represented by the appropriate substitute parameter names, as shown in Table 3.2.
R E M O T E O P E R A T I O N C H A P T E R Command Syntax Command Tree Stucture Many of the remote commands require a compound structure. This is done to distinguish between different commands of the same type.
R E M O T E O P E R A T I O N C H A P T E R Command Syntax GPIB uses a flexible representation for numeric parameters: integer, floating point, or engineering/scientific notation. There are no default values for omitted parameters. Some device−dependent GPIB commands are compound commands, in which the first mnemonic opens a path to a set of commands relating to that path.
R E M O T E O P E R A T I O N C H A P T E R Status Reporting Status Reporting Internal registers are used to inform the control program of events and conditions. The status of the MPS−8033 is held within these four internal registers: Condition: The Condition Register monitors the state of the device.
R E M O T E O P E R A T I O N C H A P T E R Status Reporting Register Structure and Contents This section provides information about the structure and contents of the different internal registers. Condition Status Register Pair Condition Status is a 16−bit register/enable−register pair with this structure: Condition Status Register...
R E M O T E O P E R A T I O N C H A P T E R Status Reporting Event Status Register Contents Event Status is a 16−bit register/enable−register pair with this structure: Evemt Status Register Copy of Status Byte 15 14 1312 11 10 7 6 5 4 3 2 1 0...
R E M O T E O P E R A T I O N C H A P T E R Status Reporting Standard Event Status Register Standard Event Status is an 8−bit register/enable−register pair with this structure: 7 6 5 4 3 2 1 0 Standard Event Status Register &...
R E M O T E O P E R A T I O N C H A P T E R Status Reporting Status Byte and Service Request Enable Register The Service Request Enable Register is logically ANDed to the Status Byte. If the result is non−zero, then bit #6 of the Status Byte is set to 1, and an SRQ interrupt is initiated.
R E M O T E O P E R A T I O N C H A P T E R ANSI/IEEE-488.2 Definitions ANSI/IEEE-488.2 Definitions The following sections contain the relevant definitions for syntax diagrams and syntax elements for the GPIB commands, as defined by the IEEE−488.2 standard.
R E M O T E O P E R A T I O N C H A P T E R Advanced Programming Advanced Programming Once you have become familiar with the command syntax and structure, you may take advantage of some programming shortcuts which are available.
R E M O T E O P E R A T I O N C H A P T E R Error Messages Error Messages Error messages may appear on the 8033 display when error conditions occur which force the output off or reflect hardware errors in the 8033.
R E M O T E O P E R A T I O N C H A P T E R Command Timing The output (response) data of the 8033 is sent in blocks of up to 80 bytes in length. It is sent using high speed DMA within the 8033, but may be of indefinite length.
R E M O T E O P E R A T I O N C H A P T E R Command Timing Remote Interface Messages The following sections are intended as a reference for using the 8033 with the GPIB option when an understanding of the lower level interface messages is required.
C H A P T E R OMMAND EFERENCE This is a reference guide for GPIB commands that your MPS−8033 responds to, including both common and device dependent commands. It contains a reference section for all of the device− dependent commands, including those which may only be accessed via remote operation. Therefore, it is of primary interest to users who wish to utilize the GPIB option.
C O M M A N D R E F E R E N C E C H A P T E R Notes about Syntax Commands and Queries There are two types of device communication: commands, which tell the device to do something and do not return anything;...
C O M M A N D R E F E R E N C E C H A P T E R Notes about Syntax GPIB Command Reference Summary This section contains all of the device−dependent commands for the 8033, listed in alphabetical order.
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C O M M A N D R E F E R E N C E C H A P T E R Notes about Syntax Table 4.1 Command Reference Parameters Name Expected Function Used to set the optical output power. LAS:POW NONE Returns the output power in the selected display units.
C O M M A N D R E F E R E N C E C H A P T E R Notes about Syntax Command Paths The 8033 commands are structured in a tree format as shown in Figure 4.2. Each of the legal paths is listed below, followed by its list of path options, each of which is followed by the commands themselves.
C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference GPIB Command Reference The following pages contain a reference for all MPS−8033 GPIB commands. This reference contains useful information for both local and remote operation of the 8033.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference CAL: OMMON EVICE EPENDENT RONT ANEL The CAL: command path is used to get to the MPS−8033’s laser output calibration commands. The following commands can be reached directly from the CAL: command path.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference CAL:USER1 OMMON EVICE EPENDENT RONT ANEL The CAL:USER1 command will cause the 8033 to set the first calibration point into memory. Parameters None.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference Action Clears status event registers: Event Status, Event Status Enable, and Error Queue. Note Useful to clear registers before enabling service requests (SRQ).
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference DISplay? OMMON EVICE EPENDENT RONT ANEL The DISplay? query returns the value shown on the display. Parameters None.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference ENABle:COND OMMON EVICE EPENDENT RONT ANEL The ENABle:COND command sets the condition status enable register for the 8033. This register is a filter which is logically ANDed to the condition register.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference ENABle:EVEnt OMMON EVICE EPENDENT RONT ANEL The ENABle:EVEnt command sets the status event enable register for the 8033. This register is a filter which is logically ANDed to the event register.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference ENABle:OUTOFF OMMON EVICE EPENDENT RONT ANEL The ENABle:OUTOFF command sets the outoff register for the 8033. This register is a filter which allows certain conditions to turn off the laser output.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference *ESE <nrf value> OMMON EVICE EPENDENT Event Status Enable RONT ANEL Action Enables bits in the standard event status enable register. Response The value must be between 0 and 255.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference *ESE? OMMON EVICE EPENDENT Event Status Enable? RONT ANEL Action Requests the value in the standard event status enable register. Response The value must be between 0 and 255.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference *ESR? OMMON EVICE EPENDENT Standard Event Status Register? RONT ANEL Action Requests the value in the standard event status register. Response The value must be between 0 and 255.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference EVEnt? OMMON EVICE EPENDENT RONT ANEL The EVEnt? query returns the value of the status event register. Parameters None.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference LASer:DEC OMMON EVICE EPENDENT RONT ANEL The LASer:DEC command decrements the laser output power by the preset STEP value. Parameters None.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference LASer:MODulation:CW OMMON EVICE EPENDENT RONT ANEL The LASer:MODulation:CW command selects the continuous wave mode. Parameters None.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference LASer:MODulation:FREQ? OMMON EVICE EPENDENT RONT ANEL The LASer:MODulation:FREQ? query returns the value of the internal modulation frequency. Parameters None.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference LASer:OUTput? OMMON EVICE EPENDENT RONT ANEL The LASer:OUTput? query returns the output on/off status. Parameters None.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference LASer:POWer? OMMON EVICE EPENDENT RONT ANEL The LASer:POWer? query returns the optical output power in the units of the present display mode. Parameters None.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference LASer:REFerence? OMMON EVICE EPENDENT RONT ANEL The LASer:REFerence? query returns the reference power in the units of the present display mode. Parameters None.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference LASer:STEP? OMMON EVICE EPENDENT RONT ANEL The LASer:STEP? query returns the step size in the units of the present display mode. Parameters None.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference MODE: OMMON EVICE EPENDENT RONT ANEL The MODE: command path is used to get to the MPS−8033’s display control commands. The following commands can be reached directly from the MODE: command path.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference MODE:DBM OMMON EVICE EPENDENT RONT ANEL The MODE:DBM command activates the dBm display mode. The dBm scale is defined as decibels from a 1 mW reference.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference MODE:Watt? OMMON EVICE EPENDENT RONT ANEL The MODE:Watt? query returns the status of the DISPLAY mode with regard to the mW scale. Parameters None.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference *OPC? OMMON EVICE EPENDENT Operation Complete Query RONT ANEL Action Places an ASCII character 1 into the intrument’s Output Queue when all pending operations have been finished.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference *PRE? OMMON EVICE EPENDENT RONT ANEL Action Determines the contents of the PARALLEL POLL ENABLE REGISTER. Response The value must be between 0 and 65535.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference Action Requests the state of the power−on status clear flag. Response The enable registers are saved through power OFF/ON. The enable registers are cleared during power ON.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference *PUD? OMMON EVICE EPENDENT RONT ANEL Action Requests the factory−stored identification string. Response (sample) #2218210123413YN091201XXX Arbitrary block data string identifier 21 digits in this string...
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference *SRE <nrf value> OMMON EVICE EPENDENT Service Request Enable RONT ANEL Action Enables bits in the service request enable register. Values Standard Event Summary (ESB) (MAV) Message Available...
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference *STB? OMMON EVICE EPENDENT Status Byte? RONT ANEL Action Requests the value in the status byte register. Values Standard Event Summary (ESB) (MAV) Message Available...
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference TERM OMMON EVICE EPENDENT RONT ANEL The TERM command allows the programmer to select the message terminator type for GPIB messages.
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C O M M A N D R E F E R E N C E C H A P T E R GPIB Command Reference TIME? OMMON EVICE EPENDENT RONT ANEL The TIME? query allows the programmer to determine how much time has passed since the 8033 was last powered up.
C O M M A N D R E F E R E N C E C H A P T E R Programming Examples Error Messages Error messages may appear on the display when error conditions occur in the 8033. In remote operation, the current error list can be read by issuing the "ERR?"...
C H A P T E R Programming Examples Programming Example: An MPS-8033 Driver Mps8033dvr(Device_id,Command$,Response$,Err$) ’ A subroutine to drive the ILX Lightwave MPS−8033 Fiber Optic Source. This driver ’ provides bus timeout protection and looks for device dependent errors.
C H A P T E R Programming Examples Programming Example: Laser output turn on subroutine SUB Turnon8033(Device_id,On_ok%) ’ A subroutine to turn on the laser in the ILX Lightwave MPS−8033 Fiber Optic Source. CALL Mps8033dvr(Device_id,"LAS:OUT ’ Turn on laser ON",Response$,Err$)
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C H A P T E R AINTENANCE This chapter describes how to maintain the MPS−8033. Included are sections covering calibration, fuse replacement, line voltage selection, and disassembly. THE SERVICE PROCEDURES DESCRIBED IN THIS CHAPTER ARE FOR USE BY QUALIFIED PERSONNEL ONLY. POTENTIALLY LETHAL VOLTAGES EXIST WITHIN THE MPS−8033.
Table 5.1 Recommended Test Equipment for Calibration Description Mfg./Model Specification Optical Power Meter ILX Lightwave OMM−6810B Power Range .100 to 100 mW Fiber Optic Patch Cord SMF with FC/APC Connector, 3 meters Environmental Conditions Calibrate the instrument under nominal laboratory conditions. We recommend calibration at 23 °C ±1.0 °C.
M A I N T E N A N C E C H A P T E R Calibration Overview Local Operation Optical Power Calibration The following procedure is for manual calibration of the MPS−8033 optical output power. Remote calibration is discussed in Remote Operation Optical Power Calibration on page 78. The instrument utilizes a 3−point calibration to characterize the power response of the source’s laser diode.
M A I N T E N A N C E C H A P T E R Calibration Overview Remote Operation Optical Power Calibration The following procedure is for calibration of the MPS−8033 optical power via GPIB. The 8033 utilizes a 3−point calibration to characterize the power response of the internal laser diode.
CAL:RECALL When this command is issued the present calibration values are lost and the default calibration is reset. ILX Lightwave recommends a user calibration after you execute this command. Cleaning the Internal Fiber Optic Connector Occasionally the fiber optic output connector on the 8033 becomes dirty. This section describes two procedures for cleaning the end of the output fiber.
M A I N T E N A N C E C H A P T E R Calibration Overview Second method: this procedure requires some disassembly of the 8033 and should be performed with caution. Make sure that the instrument is off and unplugged before beginning this procedure. Lay the instrument on its side, remove the two screws securing the bottom panel and remove the panel.
C H A P T E R ROUBLESHOOTING This chapter is intended to be used as a guide when the MPS−8033 does not perform as expected. It is not a service manual, rather a guide to alleviating basic problems that can arise during operation.
T R O U B L E S H O O T I N G C H A P T E R Hardware Troubleshooting Guide Table 6.1 Hardware Troubleshooting Symptoms Causes and Corrective Actions Output is on but there is no Check the patch cord and the connection with the 8033 and other test •...
A P P E N D I X RROR ESSAGES When errors occur, messages may appear on the 8033 display. In remote operation, the current error list can be read by issuing the "ERR?" query. When this is done, a string will be returned containing all of the error messages which are currently in the error message queue.
C H A P T E R Error Message Reference The errors codes are numerically divided into areas of operation. Errors which pertain to the following areas are listed in the ranges shown in Table A.1. Table A.1 Error Code Classifications Error Code Range Area of Operation E−001 to E−099...
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C H A P T E R Error Message Reference Table A.2 Error Code Descriptions Error Code Explanation E−202 <PROGRAM DATA> will not convert to valid type. E−203 Security violation, command is not available without clearance. E−204 <PROGRAM DATA> suffix type is not valid. E−205 <PROGRAM DATA>...
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A P P E N D I X UICK TART UIDE This chapter contains information that allows you to quickly install, configure, and operate the MPS− 8033. Installation Check to make sure the voltage printed on the back panel of the instrument matches the power−line voltage in your area.
C H A P T E R Operation Operation The following paragraphs briefly explain the operation of each function of the MPS−8033. DISPLAY Use the DISPLAY switch to toggle the display units between linear scale (mW), log scale relative to 1 mW (dBm) and log scale relative to a user defined reference (dB).
A P P E N D I X GPIB S YSTEM ONTROLLER ONFIGURATION This appendix provides a guide for setting up the GPIB System Controller for remote control of the MPS−8033. Routine GPIB operation is described in Chapter 3, Remote Operation and Chapter 4, Command Reference.
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I N D E X GPIB 17, 18 OCIS 67 address 12, 20 operating 7, 15 basic concepts 18 operation complete 30, 63, 71 cable connections 18 OQIS 67 command types 42 output off 49 commands 21, 24, 37, 38 enable register 34 connector 14 forced 33...
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I N D E X safety 2, 7 sequential/overlapped commands 33 service request enable register 29, 30 service, contact information xiv SET REFERENCE switch 9 setting references 16 specifications broadband source 4 general 5 precision source 4 standard event status register 29 status byte 26, 29, 30 suffix 37 suffix unit 23...
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