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- Page 1 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com Back to the Extech MO500 Series Info Page MicroMeter Optical Power Meter Operations Manual Firmware Version 1.20e September 15, 2003 Extech Part Numbers: MO500, MO510, MO520...
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Page 2: Table Of Contents
Table of Contents Preface Why Use An Optical Power Meter? Checking the MicroMeter Firmware Version Unit 1 - Introduction Description Applications General Features Keyboard Entry Method Unit 2 - Meter Functions Power ON Power Units Supported by the MicroMeter Wavelengths Supported by the MicroMeter “Zeroing”... -
Page 3: Preface
PREFACE Why Use An Optical Fiber Power Meter? Standards organizations such as the TIA or the ISO/IEC provide performance standards that the cabling plant must adhere to in order to support high-speed protocols such as Gigabit Ethernet. Fiber can be tested against these standards, ensuring that it is able to handle the high amount of traffic with a maximum amount of reliability. -
Page 4: Unit 1 Introduction
UNIT 1 INTRODUCTION Description The MicroMeter is a high accuracy, high resolution, microprocessor controlled optical power meter . The meter has a wide dynamic range making it ideal for both single and multi-mode fiber testing. It has an attractive handheld case, a backlit graphical liquid crystal display, and 18-key keypad for easy data entry . The meter comes with a small state-of-the-art UNIVERSAL adapter that is fully reliable for the use of ST, SC, FC or any 2.5 mm connectors which saves money on consumables (test cables wear out). -
Page 5: General Features
UNIT 1 INTRODUCTION General Features 2.5mm UNIVERSAL ADAPTER PORT - accepts standard 2.5mm ferrule connectors (ST, SC, FC). COMPUTER PORT - port for downloading data from the meter to a PC via serial cable. LIQUID CRYSTAL DISPLAY (LCD) - displays power readings, menus, and information necessary for operation of the meter. -
Page 6: Power On
UNIT 2 METER FUNCTIONS Operation Power On 1) Press the button. 2) After a few seconds, a screen will appear that looks like the one below, which is called Immediate Mode. dBm (ABS) Power Units dB (REL) µW (ABS) -20 45 Power Measurement Temperature... -
Page 7: Zeroing" The Micrometer
UNIT 2 METER FUNCTIONS Operation, cont. Wavelengths Measurements can be taken for four different wavelengths in the MicroMeter. These wavelengths are 850, 1300/1310, and 1550nm. All wavelengths are traceable to the National Institute of Standards and Technology (NIST). The user may toggle through these wavelengths by pressing “Zeroing”... -
Page 8: Main Menu
UNIT 2 METER FUNCTIONS Operation, cont. Main Menu Advanced meter functions can be configured from the Main Menu. Options 1 through MAIN MENU 4 are listed in a step-by-step order for certifying fiber links and will be explained in <1>SELECT LINK greater detail later in this manual. -
Page 9: Manual Reference Method
UNIT 2 METER FUNCTIONS Operation, cont. Manual Reference Method- recommended for advanced users only The Micro can be used to certify fiber links (shown in detail in the next unit) or to measure link loss by setting a manual reference. The manual reference method is used to measure the actual loss in a fiber link, and it is recommended that only those users who are very familiar with calculating link budgets should use this method. -
Page 10: Stored Data Menu
UNIT 2 METER FUNCTIONS Operation, cont. Stored Data Menu The STORED DATA menu allows the user to manipulate data that is stored in the MicroMeter. <1>VIEW/EDIT/LOAD - this option allows the user to view, edit, or load any data point that was previously stored in the MicroMeter. -
Page 11: Overview
UNIT 3 FIBER CERTIFICATION Overview The whole purpose of fiber certification with the MicroMeter is to save data points using a standards-based reference point and produce professional-looking reports for the customer. The MicroMeter is capable of storing up to 1000 data points with user-configurable fiber labels, and can certify up to four separate fiber links against the EIA/TIA 568 standard. -
Page 12: Step 1 - Select Link
UNIT 3 FIBER CERTIFICATION Fiber Certification, cont. STEP 1 - SELECT LINK 1-1) Press MENU to enter the MAIN MENU. 1-2) Press to SELECT LINK. 1-3) At the STORED LINKS menu, the currently loaded link is denoted by an asterisk. Scroll through the list of links by pressing to highlight the link to use. -
Page 13: Step 3 - Take Readings
UNIT 3 FIBER CERTIFICATION Fiber Certification, cont. wavelength as in step 2-7. Repeat steps 2-7 through 2-10 for all dBm (ABS) wavelengths the user is setting a reference for. Power Units dB (REL) µW (ABS) 2-12) Press to continue. The user will be returned to the -20 45 MAIN MENU. - Page 14 UNIT 3 FIBER CERTIFICATION Fiber Certification, cont. 4-4) Connect the MicroMeter to the PC via the download cable supplied with the meter. 4-5) Start the Reporter software on the PC. 4-6) Click the Download option on the menu bar, or the Download button on the button bar. The data points that are stored in the meter will appear in the Reporter window.
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Page 15: Unit 4 Appendices
UNIT 4 APPENDICES Appendix A - Decibel Review The MicroMeter meter has a decibel(dB) range that spans 75dB. The whole purpose of your meter is to measure light energy in decibels. But what exactly is a decibel? It is not uncommon for a technician to be using an optical power meter and not understand what a decibel really is. -
Page 16: Appendix B - Dynamic Range Review
UNIT 4 APPENDICES UNIT 3 APPENDICES Appendix A - Decibel Review, cont. There are other decibels to consider. The decibel we previously described is”dB” is called relative. This is because it is a ratio as was explained. With ratios there is no way to tell what absolute value we had at the start or end of a link. To solve the problem we can always reference our optical power to a fixed value of one milliwatt (1 mW). - Page 17 UNIT 4 APPENDICES UNIT 3 APPENDICES Appendix C - Glossary, cont. Bandwidth. The transmission capacity of a system. Buffering. 1. A protective material extruded directly on the fiber coating to protect the fiber from the environment (tight buffering). 2. Extruding a tube around the coated fiber to allow isolation of the fiber from stresses on the cable (loose buffered) Buffer Tubes.
- Page 18 UNIT 4 APPENDICES UNIT 3 APPENDICES Appendix C - Glossary, cont. Equipment Room. A centralized space for telecommunications equipment that serves the occupants of the building. Equipment housed herein is considered distinct from a telecommunications closet because of its nature or complexity of the equipment.
- Page 19 UNIT 4 APPENDICES UNIT 3 APPENDICES Appendix C - Glossary, cont. Multi-mode Fiber. A type of optical fiber that supports more than one propagating mode. Numeric Aperture (NA). The number that expresses the light-gathering ability of a fiber. Optical Time Domain Reflectometry (OTDR). A method of evaluating optical fibers based on detecting backscattered (reflected) light.
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Page 20: Appendix D - Micrometer Specifications
UNIT 4 APPENDICES UNIT 3 APPENDICES Appendix D - MicroMeter Specifications Detector Type:------------------------------- Ge (2mm) Calibrated Wavelengths:---------------------- 850, 1300/1310, 1550 Measurement Range:--------------------------- +5 to -70 dBm (+ versions) Accuracy:------------------------------------ +0.15 dB Resolution:---------------------------------- 0.01 Battery Life:-------------------------------- up to 200 hours (9V) Connector Type:------------------------------ Universal 2.5mm Operating Temperature:----------------------- -10 to 55 C Storage Temperature:------------------------- -30 to 70 C... -
Page 21: Appendix F - Cleaning And Care Instructions
UNIT 4 APPENDICES UNIT 3 APPENDICES Appendix F - Cleaning and Care Instructions The MicroMeter is a sensitive piece of scientific equipment. Great care should be taken when handling and cleaning it. HANDLING TIPS 1) Do NOT drop any piece of scientific equipment, e.g. the MicroMeter. Damage may occur to the case or electronic components on the circuit board may become dislodged, and inaccuracy may occur. -
Page 22: Appendix G - Accessories
UNIT 4 APPENDICES UNIT 3 APPENDICES Appendix G - Optional Accessories PR600 - Mini Serial Thermal Printer with Cable CB600 - Cable for PR600 Printer LE200ST - 850nm LED Source w/ST input LE210ST - 1300nm LED Source w/ST input LE210SC - 1300nm LED Source w/SC input LE220ST - 850nm &... -
Page 23: Appendix H - Link Budget Calculation Worksheet
UNIT 4 APPENDICES UNIT 3 APPENDICES Appendix H - Link Budget Calculation Worksheet Operating Wavelength Fiber Type Passive Cable System Attenuation Fiber Loss at Operating Wavelength (Distance x Fiber Loss) Total Cable Distance Individual Fiber Loss (at operating wavelength) dB/km Total Fiber Loss Connector Loss (Connector Loss x Connector Pairs) Individual Connector Loss... -
Page 24: Appendix I - Reference Jumper Setup
99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com Back to the Extech MO500 Series Info Page 4-10 Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - FAX 781.665.0780 - TestEquipmentDepot.com...
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