User Guide Fiber Optic Connectors and Accessories FPM 101 / FLS 101 Fiber Optic Test Set 68-2047-01 Rev.
Safety Instructions • English Warning This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. Power sources • This equipment should be operated only from the power source indicated on the product. This equipment is intended to be used with a main power system with a grounded (neutral) conductor. The third (grounding) pin is a safety feature, do not attempt to bypass or disable it.
WARNING: CLASS 1 LED PRODUCT Use of controls or adjustments other than those specified in this guide may result in hazardous radiation exposure. The FLS 101 optical light source is a registered Class I LED and Laser Product. WARNING: To avoid the danger of fire and electrical shock: • Never use a voltage that is different from that for which the AC adapter is rated. • Do not plug the unit into a power outlet that is shared by other devices.
Contents Introduction............................................................ 1 Maintenance and Troubleshooting.................. 17 About this User Guide......................................... 1 About the FPM 101 and FLS 101......................... 1 Features............................................................... 1 Power Source....................................................... 2 Typical Applications.............................................. 3 Accessories..........................
Fiber Optic Test Meters • Contents vi
Introduction This introduction covers the following topics: : • About this User Guide • About the FPM 101 and FLS 101 • Features • Power Source • Typical Applications • Accessories About this User Guide This user guide covers the following products: • FPM 101 Power Meter • FLS 101 Light Source In this guide the term “link” refers to a fiber optic cable under test. The term “power meter” refers to the FPM 101 and the term “light source” refers to the FLS 101. Check the Extron website at www.
The FPM 101 Power Meter offers: • When used with a compatible light source such as the FLS 101, WAVE ID enables the power meter to automatically detect and set wavelengths, simplifying setup. • Power measurements in dBm or μW; insertion loss in dB. • 270 Hz, 330 Hz, 1 kHz, 2 kHz tone detection. The FLS 101 Light Source offers: • Integrated LED and laser light source. • WAVE ID allows a compatible power meter to automatically identify and measure a wavelength.
Typical Applications The fiber optic test kit offers these typical applications: FPM 101 Power Meter: • High power model for CATV and Telco • Enterprise/LAN for singlemode and multimode measurements • Passive optical networks (PON) testing • LAN/WAN multimode or singlemode networks FLS 101 Light Source: • Certify multimode and singlemode links per TIA/EIA standards • Certify multimode fiber links for Gigabit Ethernet (GBE) • Test Ethernet, Token Ring, and Fiber Distributed Data Interface (FDDI
Operation This section details the connection of fiber optic cables to the equipment for testing and measuring the power loss of a fiber optic source.
FPM 101 Power Meter — Controls and Connections a b c 0000 WAVE ID µW dB dBm 0.00 0000 0.00 Hz nm µW dB Hz nm d µW dB Set Ref λ e FPM 101 FIBER POWER METER f Figure 3. POWER FPM 101 Power Meter a Adapter Cap — Adapts the thread-on optical input to various fiber optic cable connectors. The FPM 101 includes an LC adapter cap which matches most Extron applications. b Optical input — Accepts the thread-on adapter cap allowing you to quickly change the fiber optic connector.
Power Up the FPM 101 The power button provides two functions: • Press and hold the power button, , for a short time until the display lights up to turn the meter on. When the meter is on, press and release the button to turn the FPM 101 off. • Press and hold the button when the meter is on to disable/enable the auto-off feature. Auto-off powers down the unit after five minutes of inactivity.
Ref/Set Button The Ref/Set button, Ref , provides two functions: • Press and hold to store the power level values for a set of reference cables, (Set), • Press and release to display previously stored references, (Ref). Test Mode: To Set a Reference 1. Refer to the sections describing connection of reference cables (see “Testing Fiber Optic Links” on page 12). 2. Set the FPM 101 to the desired measurement mode (dBm or uW) (see “dB/dBm/μW Button” in the previous section). 3.
Display Readings in Test Mode The following table lists descriptions for the LCD display readouts in various modes of operation. nm µW REF dB dBm Hz nm WAVE ID C D E F G H µW nm µW REF WAVE ID dB dBm Hz nm µW dB dBm dB dBm Single WAVE mode, or Tri WAVE mode - second page F G H I Single or Dual WAVE ID mode Figure 4. FPM 101 Display Item Field Description a Battery status indicator Displays the approximate remaining battery life. Three bars indicate the charge level.
FLS 101 Light Source — Controls and Connections The FLS 101 light source can test fiber optic links by generating the proper wavelength light for the link under test. The light source can generate multimode 850 nm and 1300 nm wavelengths, or singlemode 1310 nm and 1550 nm wavelengths. For each mode, (SM or MM), the two wavelengths can be generated one at a time or alternating between the two. NOTE: The light source can only emit light from one output port at a time.
Output Ports and Indicators The optical output ports require adapter caps for connection to fiber optic links and reference cables. The FLS 101 includes two LC adapter caps. e f g MM output port — LED source multimode optical output. SM output port — Laser source singlemode optical output.
Measuring Optical Power CAUTION: It is important to keep all optical connections and surfaces free from dirt, oils, or other contaminants to ensure proper operation. Always clean all test reference cables before conducting the test procedures outlined in this guide. See “Cleaning Optical Ports” on page 17 for details. To Measure Optical Power 1. Turn on the FPM 101 power meter by pressing the power button (a). 2. Select the appropriate fiber optic reference cable.
Testing Fiber Optic Links Multimode or singlemode links are easily measured using the FPM 101 power meter and FLS 101 light source. Two reference cables, transmit and receive, are required. Before an unknown fiber link can be measured, the insertion loss of the two reference cables must first be verified to be less than 0.75 dB. Test the Transmit Reference Cable: 1. Turn on the FPM 101 power meter and FLS 101 light source.
7. The normal range is -20 dBm for multimode cables, 0 dBm for singlemode, (± 1dB). NOTE: Output power for multimode cables is approximately 3 dB less when a 50 μm mandrel wrapped reference cable is used, or if the tone feature is activated. If the measured output power is outside the normal range, or the display reads HI or LO: • Clean all fiber connections and repeat step 6, or • If cleaning fails, replace the transmit reference cable, then repeat steps 3 through 7. 8.
11. Connect the receive reference cable to the FPM 101. 12. Connect the free ends of the transmit and receive reference cables together using an appropriate coupler, or use a nearby bulkhead connector. Transmit Reference Cable MM: Mandrel Wrap or SM: 1.2 inch (30 mm) Dia Loop (Shown) N Receive Reference Cable Coupler or Bulkhead N M Do Not Remove This Connection Adapter Cap 0.4 dB FLS 101 Figure 9. FPM 101 Connect the Receive Reference Cable 13.
2. Insert the link to be tested by connecting it to the free ends of the transmit and receive reference cables using appropriate couplings, or connect the reference cables to the bulkhead connections of the link as shown in figure 10 below. NOTE: Clean reference cable and link ends prior to each test. 3. Observe the displayed values. The link cable insertion loss is displayed in dB.
Using the Tone Generator The tone generator is used for fiber identification when an installer is faced with multiple unmarked links and the cable ends are not readily accessible by a single technician or are far removed from one another. The tone is inserted by the light source at one end of the link and identified at the other using the tone feature of the FPM 101.
Maintenance and Troubleshooting This section provides preventative maintenance and troubleshooting suggestions. • Cleaning Optical Ports • Repair and Calibration • Battery Replacement • Mandrels for Multimode Transmit Reference Cables • Loops for Singlemode Single Reference Cables Cleaning Optical Ports CAUTION: Before conducting the following procedures be certain the instruments are turned Off. Disconnect the external supply from the FLS 101.
Cleaning FLS 101 Optical Ports 1. Rotate the adapter base counterclockwise approximately four times. 2. Pull the adapter directly out and away from the adapter mount. 3. Dampen an optical wipe with alcohol and gently wipe the exposed ferrule. NOTE: Be certain to use 99% IPA that has not been contaminated. 4. Dry the ferrule using a new optical wipe. 5. Using a can of filtered compressed air (held vertically), blow out any remaining contaminants from the adapter. 6.
Mandrels for Multimode Transmit Reference Cables When testing multimode links using an overfilled LED source, always wrap the transmit reference cable five (5) times around the proper diameter mandrel. This is specified by TIA/EIA-568-B and improves insertion loss measurement repeatability and accuracy. Do NOT use mandrels on multimode receive reference cables or singlemode reference cables.
Reference Material This section provides technical specifications, included and replacement part numbers, and optional accessories. • Specifications • Included Accessories Specifications NOTE: These devices are class 1 laser products. They meet the safety regulations of IEC-60825, FDA 21 CFR 1040.10, and FDA 21 CFR 1040.11.
Testing ranges Measurement �������������������������� -60 to +6 dBm Tone detection ������������������������� At 850 nm: -45 to +6 dBm At all other wavelengths: -50 to +6 dBm Wavelength identification �������� At 850 nm: -45 to +6 dBm At all other wavelengths: -50 to +6 dBm Resolution �������������������������������������� 0.01 dB Accuracy ���������������������������������������� ±0.
Included Accessories Description Part Number FPM 101 power meter FLS 101 light source Batteries (4 AA) Soft Pouch LC singlemode reference cable (x2) LC multimode reference cable (x2) Light Source LC Adapter (x2) Power Meter LC Adapter Cap FPM/FLS 101 Setup Guide Fiber Optic Test Meters • Reference 22
Extron® Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase.
