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JDS Uniphase RX3 Series User Manual

Multichannel backreflection meter
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JDS Uniphase RX3 Series User Manual

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Summary of Contents for JDS Uniphase RX3 Series

  • Page 1 sales@artisantg.com artisantg.com (217) 352-9330 | Visit our website - Click HERE...
  • Page 2 RX3 SERIES MULTICHANNEL BACKREFLECTION METER User’s Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 3 10129979 Rev. 001 • June 2005 2005 JDS Uniphase. All rights reserved Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 4: Instrumentation Support

    Instrumentation Support Regular support hours of operation are 8:00 AM - 5:00 PM ET, Monday through Friday, excluding Canadian holidays. Emergency Technical Support For emergency assistance, technical support is available 7 days a week, 24 hours a day. Dial one of the telephone numbers below and follow the voice prompts to page a specialist. North America Toll Free: 800 406-9559...
  • Page 5 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 6: Table Of Contents

    Contents Instrumentation Support ......................iii Emergency Technical Support ................iii North America .......................iii Outside North America ..................iii China iii Toll Free Access Codes by Country ..............iii Safety Information ........................vii Safety Instructions......................vii Safety Symbols.....................vii Laser Classification ....................vii Before Initializing and Operating the Unit............viii Operating the Unit ....................viii Safety Features and Compliance..................
  • Page 7 RS232 Interface Programming Example ............. 37 Customized Features and Test Data ..................39 Service ............................41 Storing and Shipping....................... 41 Claims and Repackaging ....................41 Returning Shipments to JDS Uniphase ............... 41 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 8: Safety Information

    Failure to comply with any of these instructions or with any precaution or warning contained in the user’s manual is in direct violation of the standards of design, manufacture, and intended use of the unit. JDS Uniphase assumes no liability for the customer’s failure to comply with any of these safety requirements.

  • Page 9: Before Initializing And Operating The Unit

    viii Table 2: Laser Class and Parameter Limits Parameter Specification Wavelength 850 –1650 nm Class Output power 0.32 mW (max) * Per standard IEC 60825-1 and FDA standard 21CFR1040.10 except deviation per Laser Notice No. 50 July 2001. Before Initializing and Operating the Unit Inspect the unit for any signs of damage, and read the user’s manual thoroughly.
  • Page 10 Use only the type of fuse specified by the manufacturer as appropriate for this unit. Do not use repaired fuses, and avoid any situations that can short- circuit the fuse. Unless absolutely necessary, do not attempt to adjust or perform any maintenance or repair procedure when the unit is opened and connected to a power source.

  • Page 11: Safety Features And Compliance

    There is an LED on the front panel indicating when the laser/LED source is on. Laser Safety Labeling The RX3 Series Backreflection Meter is classified per Table 2. As required by the FDA standard 21CFR1040.10, an identification label (Figure 1) is placed on the top of the unit showing name of manufacturer, address, and month and year of manufacture.
  • Page 12 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 13 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 14: General Information And Specifications

    General Information and Specifications General Information This user’s manual for the RX3 Series Multichannel Backreflection Meter contains complete operating instructions. The Multiple Connector Test System (MCTS) software is bundled with the meter; for information on using the software, see the Multiple Connector Test System Software User’s Manual (document SD000318).

  • Page 15: Backreflection Measurements

    Backreflection Measurements Reflections in optical systems can come from a number of sources. Primary sources include the fiber (Rayleigh backscatter) and Fresnel reflections that occur at the planar junction of two materials having different refractive indices, for example, connector and fiber endfaces, splices, bulk optic interfaces, and detector surfaces.

  • Page 16: Hybrid Jumpers

    Caution To prevent damage to the output port connectors, always use the measurement jumper measurements, even when measuring components with a FC/APC connector. Internal Light Sources The RX3 meter can be equipped with two internal laser sources. These are thermoelectrically cooled for added stability and can be run in both Modulated Laser mode and CW LED mode.

  • Page 17: Standard Accessories

    Standard Accessories AC power cord Laser sources (as specified at time of order) 2, 3, or 10 mm InGaAs detector, or 5 mm Ge detector (as specified at time of order) FC/PC-FC/APC hybrid measurement jumper FC/PC-FC/APC hybrid calibrated jumper FC-type detector adapter Detector cap User’s manual MCTS software and user’s manual...

  • Page 18: Specifications

    Specifications The following optical specifications describe the warranted characteristics of the instrument (Table 3). Supplementary specifications describe the typical non-warranted performance of the instrument (Error! Reference source not found.). Table 3: Optical Specifications Parameter Single-Mode (SM) Multimode (MM) Operating wavelength 1310, 1480, 1550, 1625, 1650 850, 1310, 1550 ±10 nm ±10 nm...
  • Page 19 5 mm Ge detector can accurately measure ribbon fiber connectors with up to 8 multimode or 12 single-mode fibers. Measured at ambient temperature ± 3°C. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 20: Getting Started

    Meter section. 6. Keep the packaging. Immediately inform JDS Uniphase and, if necessary, the carrier if the contents of the shipment are incomplete, if the unit or any of its components are damaged or defective, or if the unit does not pass the initial inspection.

  • Page 21: Humidity

    Humidity The unit can be operated in environments with up to 95% humidity (0 to 40 °C). Do not expose it to any environmental conditions or changes to environmental conditions that can cause condensation to form inside the unit. Ventilation The unit contains a built-in cooling fan.

  • Page 22: Powering Up The Meter

    Figure 6: Connector Cleaning (connector type can vary) 2. Apply optical grade isopropyl alcohol or optical grade ethanol (do not use rubbing alcohol) to a small area of a lint-free towel and rub the end of the ferrule over the wet area. 3.

  • Page 23: Terminating A Fiber

    Table 4: Initialized Operating State Feature Function Output Channel 1 Source 1.3 laser Measurement mode Backreflection Averaging function Data logging Multidisplay mode Factory-set value Setup Via loss (factory-set value) Operating keys All keys that could be disabled are enabled Any changes made to the BR or Power calibration are retained. Once initialized, the meter displays the backreflection on channel 1 at 1310 nm.

  • Page 24: Using Menu Functions

    The diameter of the rod must be suitable for the type of fiber connected to the output port jumper and for the wavelength in use. Termination can also be performed by using index-matching gel or terminating connectors. These methods are recommended only when measuring fairly high backreflection levels because they do not remove all the backreflection from the fiber end and they cannot be applied sufficiently close to a DUT with long jumpers.
  • Page 25 MULTI DISPL: LOG DATA: REMOTE MENU EMULATION: RX3000 RX1000 MORE MENUS INTERFACE: GPIB RS232 GPIB ADDR: SETUP VIA: REFL LOSS 1.3 REFL: -14.7 1.5 REFL: -14.8 Select source mode when in POWER mode: LASER 1.3 INT. : SETUP MENU 1.5 INT. : SOURCE MODE MENU SET ACTIVE MENU (CALIBRATE MENU)

  • Page 26: Operating And Maintenance Instructions

    Operating and Maintenance Instructions Front Panel The front panel shown in Figure 8 is for the RX3074-5G meter. Not all RX3 Series meters are exactly as shown. Figure 8: Front Panel of RX3 Series Multichannel Backreflection Meter Master Module The Master Module panel is shown in Figure 9.

  • Page 27: Optics/Detector Module

    Optics/Detector Module The optics/detector module contains the power meter. Operating Keys and Status LEDs The operating keys and LEDs are described in Table 5. Table 5: Operating Keys and Status LEDs Key/LED Description Powers the meter on (I) or off (O). The key lamp lights to indicate that the meter is powered on.

  • Page 28: Rear Panel

    Rear Panel The back of the meter is shown in Figure 10 and the rear-panel features are described in Table Figure 10: Rear Panel of Multimode RX3 Meter Table 6: Rear-Panel Features Feature Description BRIGHTNESS Controls the brightness of the front-panel display. CONTRAST Controls the contrast of the front-panel display.

  • Page 29: Measuring Backreflection

    8. Clean and connect the output connector of the measurement jumper to the detector adapter on the front of the meter. 9. Press the SETUP key. The offset value (equal to twice the measured loss) is briefly displayed. The key lamp lights to indicate that the meter is using the measured offset value to calculate the backreflection.

  • Page 30: Backreflection Accuracy And Range

    points that is caused by the fiber, all connections and the DUT, for example, the area within the dashed line in Figure 12. Figure 12: Measuring Backreflection 6. If necessary, terminate the fiber for BR again, just before the DUT, to eliminate the backreflection caused by the fiber and all connections before the DUT.

  • Page 31: Setting Up The Meter For Loss And Power Measurements

    Setting Up the Meter for Loss and Power Measurements To prepare the meter for loss and power measurements: 1. Ensure that the meter is powered off. 2. Set the power switch to I (on), and select the Restore Last Settings or Initialize option. 3.

  • Page 32: Measuring Absolute Power

    If the SETUP key is pressed when the meter is set to either Backreflection or Power mode, the meter measures the loss of connectors and calculates the offset to be used in the backreflection measurements. The meter also zeros the reference power (for example, REF). Therefore, once the setup for a jumper has been performed in either mode, the meter is ready to display the backreflection or loss of the DUT attached to that jumper.

  • Page 33: Power Accuracy

    Figure 14: Measuring Relative Power 7. Press the key to measure and display the loss at another wavelength. Power Accuracy The absolute accuracy of power measurements made with the meter depends on the power level to be measured. To ensure accurate power measurements, store the dark signal frequently or at least before each measurement.

  • Page 34: Multidisplay Mode

    Multidisplay Mode The meter features a multidisplay function to facilitate data viewing during multiple-port testing or during measurements that involve ribbon fiber. This function enables the meter to make and display backreflection or loss measurements in groups of four. To set multidisplay mode: 1.

  • Page 35: Setup Using A Reference Reflector

    If the data logging function is used with a computer, the computer must be either continuously waiting for data or serial polling the GPIB interface to test whether the meter is trying to send data. To deactivate the data logging function: 1.

  • Page 36: Disabling Functions

    2. Turn the power switch to I (on). 3. Select the Initialize option during power-up; or repeat the preceding procedure, selecting LOSS rather than REFLECTION in step 4. Disabling Functions When the RX3 meter is initialized at power-up, all sources, outputs, and keys are active. The user can disable sources, outputs, and keys to prevent their accidental or erroneous use.

  • Page 37: Messages And Symbols

    Messages and Symbols The messages and symbols that can be displayed by the RX3 meter are described in Table 8. Table 8: Display Messages and Symbols Display Description RX3-00 VX.XX Displayed momentarily during the power-up sequence, indicating the software version (X.XX). BACKREFLECTION Backreflection mode ABS POWER...

  • Page 38: Troubleshooting

    Displayed momentarily when the Setup function was successfully completed in Absolute or Relative Power mode. Troubleshooting If any problem described in this section persists, contact JDS Uniphase or your local representative. All backreflection measurement is affected by the loss before the DUT and by reflections before and after the DUT.
  • Page 39 Connector Loss and Backreflection Ensure that the loss and backreflection levels of all the connectors are low and stable. Long Cables Terminate long cables near the DUTs or connectors being tested to eliminate backreflections from the fiber. Laser Stability If the message INPUT HIGH or INPUT LOW is displayed, lower the hinged door of the output module, connect one of the internal FC/APC connector to the detector, and press the POWER key.

  • Page 40: Calibrating The Meter

    Calibrating the Meter Annual calibration of the meter by JDS Uniphase is recommended. In addition, to ensure the accuracy of backreflection, loss, and power measurements, the calibration of the meter needs to be checked periodically and adjusted, if required. Use only the calibrated hybrid jumper for all calibration procedures.

  • Page 41: Power Calibration Adjustment

    The value displayed on the RX3 meter must match the reference value that appears in the inspection report and on the label of the calibrated jumper. If these values do not match, ensure that the FC/APC connector is properly connected to the meter, and clean all the connectors.

  • Page 42: Maintaining The Meter

    2. Clean and connect the FC/APC connector (green boot) of the calibrated jumper to an output port of the meter. 3. Press the or key to select the required output port. 4. Press the key to select the wavelength at which the calibration check is to be performed (choose either wavelength, as you will check both).
  • Page 43 5. Raise the output module door, and press the push-button fastener to secure it. To avoid damaging the input and output port fibers, make one or two large loops in the fibers when raising the door. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 44: Programming Guide

    (backreflection), AP (absolute power), or RP (relative power). Both interfaces can be set to emulate the interface command set of JDS Uniphase RX1000 Series Backreflection and Loss Test Sets. In RX1000 emulation mode, the measurements displayed by the RX3 meter include the prefixes BR+, PR=, and L= to identify backreflection, power, and loss measurements, respectively.

  • Page 45: Setting The Gpib Interface Address

    Table 10: GPIB Functions Mnemonic Function Name Source handshake, complete capability. Acceptor handshake, complete capability. Basic talker, serial poll, unaddressed if MLA. Basic listener, unaddressed if MTA. No service request capability. Remote/local, complete capability. Parallel poll, no capability. Device clear, no capability. Device trigger, no capability.

  • Page 46: Status Codes Of The Serial Poll Register

    Table 11: GPIB Standard Commands Command Operation REMOTE ENABLE Lockout keypad. RETURN TO LOCAL Enable keypad. INTERFACE CLEAR Resets the interface to the default setting. ENTER Read measurement. OUTPUT Write a device-dependent command. SPOLL Serial poll. Status Codes of the Serial Poll Register The status codes of the serial poll register are listed in Table 12.

  • Page 47: Rs232 Interface

    Command Operation A09E Measure dark signal A11E TO A30E Set output channel (command = channel number +10). A41E Select 1.3 source if available. A42E Select 1.5 source if available . A45E Set relative power reference. A46E Perform Setup measurements. A47E Measure BR A50E Set BR...

  • Page 48: Setting The Rs232 Serial Interface

    Setting the RS232 Serial Interface To set the RS232 interface: 1. Press the MENU key. 2. Press the soft key labeled REMOTE MENU. 3. Press the soft key labeled EMULATION: RX3. 4. Press the soft key labeled INTERFACE: RS232. The GPIB address is displayed. 5.

  • Page 49: Programming Examples

    Command Operation (table continued) A08E Switch to Backreflection mode. A09E Measure dark signal A11E TO A30E Set output channel (command = channel number 10). A41E Select 1.3 source if available. A42E Select 0.85 source if available. A45E Set relative power reference. A46E Perform SETUP measurements.

  • Page 50: Rs232 Interface Programming Example

    RS232 Interface Programming Example The following sample program, written in MS-DOS Qbasic, controls the RX3 meter. All RS232 messages must end with the terminating sequence <CR>. OPEN "COM1 : 1200, N, 8, 2" AS #1 PRINT #1, "A00E" ' lockout keypad PRINT #1, "A08E"...
  • Page 51 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 52: Customized Features And Test Data

    Customized Features and Test Data Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 53 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 54: Service

    The unit or any of its components are damaged or defective The unit does not pass the initial inspection In the event of carrier responsibility, JDS Uniphase will allow for the repair or replacement of the unit while a claim against the carrier is being processed.

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