{"id":3760,"date":"2026-08-27T08:15:08","date_gmt":"2026-08-27T08:15:08","guid":{"rendered":"https:\/\/firstfibertech.com\/?p=3760"},"modified":"2026-09-16T04:34:23","modified_gmt":"2026-09-16T04:34:23","slug":"manual-de-usuario-del-micro-otdr-tn1700","status":"publish","type":"post","link":"https:\/\/firstfibertech.com\/es\/blog\/tn1700-micro-otdr-user-guide\/","title":{"rendered":"Gu\u00eda del usuario del Micro OTDR TN1700"},"content":{"rendered":"\n

Safety Warning<\/strong><\/strong><\/h2>\n\n\n\n

Power Adapter<\/h3>\n\n\n\n

Input:<\/strong> AC 100-240V, 50\/60Hz, 0.8A <\/p>\n\n\n\n

Output:<\/strong> DC 5V, 1A (USB Type-C) <\/p>\n\n\n\n

Note:<\/strong> Please use a power adapter that strictly complies with these specifications. Using an incompatible adapter may result in damage to the device.<\/p>\n\n\n\n

Battery<\/h3>\n\n\n\n

This instrument contains a built-in lithium battery. To optimize battery performance, please run the instrument on battery power during your initial use until it is fully depleted before recharging.<\/p>\n\n\n\n

The initial charge should take at least 5 hours. The safe charging temperature range is -10\u00b0C to 50\u00b0C; for safety reasons, stop charging if the temperature exceeds this limit.<\/p>\n\n\n\n

If the instrument remains unused for more than 3 months, recharge the battery periodically to maintain its capacity. The recommended temperature range for long-term storage is -20\u00b0C to 45\u00b0C.<\/p>\n\n\n\n

Warning:<\/strong> Do not attempt to remove the battery yourself. Keep the device away from fire and extreme heat. Do not open, puncture, or otherwise damage the battery.<\/p>\n\n\n\n

Laser Safety Instruction<\/h3>\n\n\n\n

Laser Safety Classifications:<\/strong><\/p>\n\n\n\n

    \n
  • OTDR:<\/strong> Class II<\/li>\n\n\n\n
  • Visual Fault Locator (VFL):<\/strong> Class IIIB<\/li>\n<\/ul>\n\n\n\n

    \u26a0\ufe0f WARNING: EYE HAZARD<\/strong><\/p>\n\n\n\n

    Do Not Look Directly at the Laser:<\/strong> The lasers emitted by this device are hazardous. Never look directly into the laser output ports or the end of an optical fiber while the instrument is active or testing.<\/p>\n\n\n\n

    VFL Precautions:<\/strong> Strict caution is required when the Visual Fault Locator is turned on. Direct eye exposure to the VFL output port or the connected fiber end can cause severe eye injury.<\/p>\n\n\n\n

    Port Protection:<\/strong> Always replace the dust caps on the optical output ports whenever the instrument is not in use.<\/p>\n\n\n\n

    Know Before Testing<\/strong><\/h2>\n\n\n\n

    Live Fiber Test (In-service Test)<\/h3>\n\n\n\n
    Model<\/th>Operating Wavelength<\/th>Live Fiber Testing Support<\/th><\/tr><\/thead>
    TN1700-D22<\/td>1310 nm \/ 1550 nm<\/td>Not supported<\/td><\/tr>
    TN1700-P1<\/td>1550 nm<\/td>Supported (1310\/1490\/1577\/1610\/1625 nm)<\/td><\/tr>
    TN1700-P2<\/td>1610 nm<\/td>Supported (1310\/1490\/1550\/1577 nm)<\/td><\/tr>
    TN1700-A22<\/td>1625 nm<\/td>Supported (1310\/1490\/1550\/1577 nm)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Note:<\/strong> For supported models, live fiber testing is strictly prohibited if the optical power exceeds 0 dBm.<\/p>\n\n\n\n

    Laser Type<\/h3>\n\n\n\n

    1310\/1550 nm:<\/strong> FP-LD<\/p>\n\n\n\n

    1610 nm:<\/strong> DFB-LD<\/p>\n\n\n\n

    1625 nm:<\/strong> DFB-LD<\/p>\n\n\n\n

    1650 nm:<\/strong> DFB-LD (Optional)<\/p>\n\n\n\n

    VFL (Visual Fault Locator):<\/strong> 650 nm (red) and 515 nm (green) lasers are available as optional add-ons.<\/p>\n\n\n\n

    Test Result Storage<\/h3>\n\n\n\n

    Storage & Memory:<\/strong><\/p>\n\n\n\n

      \n
    • Built-in memory<\/li>\n\n\n\n
    • SD card expansion slot (supports up to 32 GB)<\/li>\n<\/ul>\n\n\n\n

      \u26a0\ufe0f Important:<\/strong> Avoid overloading the SD card with excessive data, as this may slow down the device and impact overall performance.<\/em><\/p>\n\n\n\n

      Main Functions and Button Descriptions<\/strong><\/h2>\n\n\n\n
      \"TN1700<\/figure>\n\n\n\n
      <\/td>Function<\/td>Description<\/td><\/tr>
      1<\/td>VFL<\/td>Visual Fault Locator Port<\/td><\/tr>
      2<\/td>OPM<\/td>Optical Power Meter Port<\/td><\/tr>
      3<\/td>OTDR\/ LS<\/td>OTDR\/Laser Source port<\/td><\/tr>
      4<\/td>Flashlight<\/td>Short press the power button to operate<\/td><\/tr>
      5<\/td>SD card<\/td>Supports up to 32GB SD card expansion<\/td><\/tr>
      6<\/td>Power button<\/td>POWER ON\/OFF
      -Long press: power on\/off
      -Short press: Turn on\/off flashlight<\/td><\/tr>
      7<\/td>LED<\/td>-Red indicator charging, fully charged and turned off.
      -Flashing indicator: No battery installed<\/td><\/tr>
      8<\/td>USB Type C<\/td>Used for charging and transmitting data<\/td><\/tr>
      9<\/td>Reset key<\/td>Used to reset the instrument panel when a system crash occurs<\/td><\/tr>
      10<\/td>LCD<\/td>resolution: 320X480 TFT Capacitive  LCD screen, supporting multi touch control.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      Operating the TN1700<\/strong><\/h2>\n\n\n\n

      Power On<\/h3>\n\n\n\n

      Press the [Power]<\/strong> button to turn on the TN1700. Once powered on, the screen will display the main interface.<\/p>\n\n\n\n

      Power Off<\/h3>\n\n\n\n

      Long-press the [Power]<\/strong> button to shut down the device.<\/p>\n\n\n\n

      Flashlight Control<\/h3>\n\n\n\n

      While the device is on, short-press the [Power]<\/strong> button to toggle the flashlight on or off.<\/p>\n\n\n\n

      Shortcut Menu<\/h3>\n\n\n\n

      Swipe down from the top of the screen at any time to access the quick menu. Available options include: [Screenshot]<\/strong>, [Flashlight]<\/strong>, [Shutdown]<\/strong>, and [Return]<\/strong>.<\/p>\n\n\n\n

      \"TN1700<\/figure>\n\n\n\n

      System Settings<\/h3>\n\n\n\n

      Language:<\/strong> Supports English, French, Spanish, Portuguese, Italian, German, Korean, and Russian.<\/p>\n\n\n\n

      Auto Off:<\/strong> To conserve battery, the device can automatically shut down after a period of inactivity. You can customize the idle time based on your needs.<\/p>\n\n\n\n

      USB Data Export:<\/strong> Connect the instrument to a computer and enable “USB Data Export”. The device will be recognized as a USB flash drive, allowing you to easily view, manage, and transfer files.<\/p>\n\n\n\n

      Date and Time:<\/strong> If the battery is removed, the system clock will reset. You will need to reconfigure the date and time after reinstalling the battery.<\/p>\n\n\n\n

      Firmware Upgrade<\/h3>\n\n\n\n
        \n
      • Transfer the firmware upgrade package to the instrument via a USB cable.<\/li>\n\n\n\n
      • Disconnect the USB cable, then tap [Upgrade]<\/strong>.<\/li>\n\n\n\n
      • The TN1700 will automatically enter upgrade mode and complete the firmware installation.<\/li>\n<\/ul>\n\n\n\n
        \"TN1700<\/figure>\n\n\n\n

        OTDR Parameter Settings<\/strong><\/h2>\n\n\n\n

        Wavelength:<\/strong> 1310 \/ 1550 nm (Configured by instrument model)<\/em><\/p>\n\n\n\n

        Test Mode (Auto\/Manual):<\/strong><\/p>\n\n\n\n

          \n
        • Auto:<\/em> The instrument automatically selects the optimal measurement range and pulse width based on the fiber’s characteristics.<\/li>\n\n\n\n
        • Manual:<\/em> The instrument uses the exact range and pulse width specified by the user.<\/li>\n<\/ul>\n\n\n\n

          Range:<\/strong> Select from 100 m up to 80 km.<\/p>\n\n\n\n

          Pulse Width:<\/strong> Select from 5 ns up to 10 \u03bcs.<\/p>\n\n\n\n

          Time:<\/strong> 5 s \/ 10 s \/ 30 s \/ 60 s \/ Real-time.<\/p>\n\n\n\n

          Refractive Index:<\/strong> The index of refraction for the fiber under test. Accuracy here directly impacts the precision of distance measurements.<\/p>\n\n\n\n

          End Threshold:<\/strong> When the optical loss at a specific location exceeds this threshold, that point is identified as the end of the fiber cable.<\/p>\n\n\n\n

          Loss Threshold:<\/strong> Used to filter event reporting; any event with a loss less than this value will be ignored.<\/p>\n\n\n\n

          \"TN1700<\/figure>\n\n\n\n

          Fiber Preparation<\/strong><\/h2>\n\n\n\n

          The TN1700 OTDR is designed to work with standard single-mode optical fibers (9 \u03bcm core diameter).<\/p>\n\n\n\n

          Please note that due to inherent OTDR testing principles, the length of the fiber under test must be between 3 meters and 80 km. Fibers shorter than 3 meters cannot be accurately measured.<\/p>\n\n\n\n

          Fiber Connector<\/h3>\n\n\n\n

          There are two types of fiber connectors: APC<\/strong> (featuring an 8\u00b0 angled end-face) and UPC\/PC<\/strong> (featuring a flat end-face).<\/p>\n\n\n\n

          \u26a0\ufe0f Warning:<\/strong> APC and UPC connectors are strictly not interchangeable. Do not attempt to modify or switch the connector type yourself. By default, the OTDR port comes factory-equipped with an SC connector.<\/em><\/p>\n\n\n\n

          Connector Cleaning Guide<\/h3>\n\n\n\n

          Please use a dedicated optical connector cleaner to clean both the OTDR port and your fiber connectors.<\/p>\n\n\n\n

            \n
          • To clean the OTDR port:<\/strong> Remove the entire<\/em> dust cap from the tip of the cleaner.<\/li>\n\n\n\n
          • To clean a fiber connector:<\/strong> Remove only the top half<\/em> of the dust cap from the cleaner tip.<\/li>\n<\/ul>\n\n\n\n

            Start a Test<\/strong><\/h2>\n\n\n\n

            Starting the OTDR Test<\/h3>\n\n\n\n

            Once the cleaning process is complete, carefully insert the fiber connector into the OTDR port.<\/p>\n\n\n\n

            Curve Part<\/td><\/tr>
            WL<\/td>Wavelength<\/td><\/tr>
            PW<\/td>Pulse width<\/td><\/tr>
            Y<\/td>Vertical axis scale in dB<\/td><\/tr>
            A<\/td>The position of cursor A in distance, and
            loss at current position<\/td><\/tr>
            B<\/td>The position of cursor B in distance, and
            loss at current position<\/td><\/tr>
            A-B<\/td>Distance between A and B
            Loss value between A and B<\/td><\/tr>
            Event List Part<\/td><\/tr>
            Number<\/td>Event number from near end to far end<\/td><\/tr>
            Type<\/td>Attenuation event or reflect event<\/td><\/tr>
            Distance<\/td>The distance from first event to current event. Km in unit<\/td><\/tr>
            Loss<\/td>The loss value at current event  dB in unit<\/td><\/tr>
            Avg.Loss<\/td>The average loss\/km from first event to current event<\/td><\/tr>
            T.Loss<\/td>The total loss from first event to current event  dB in unit<\/td><\/tr>
            Reflect<\/td>The reflect signal value dB in unit<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
            \"TN1700<\/figure>\n\n\n\n

            To save OTDR Testing Results<\/h3>\n\n\n\n

            After testing is done, press [Save] button to save OTDR testing results.<\/p>\n\n\n\n

            <\/td>Description<\/td><\/tr>
            Cap<\/td>Toggle uppercase\/lowercase letters<\/td><\/tr>
            Clr<\/td>Clear current input<\/td><\/tr>
            Back<\/td>Delete one letter from right side to left side<\/td><\/tr>
            <<\/td>Move cursor from right to left and then insert a letter<\/td><\/tr>
            ><\/td>Move cursor from left to right and then insert a letter<\/td><\/tr>
            Quit<\/td>Back to OTDR testing and do not save current curve<\/td><\/tr>
            \\OTDR<\/td>Save to TN1700<\/td><\/tr>
            \\SD<\/td>Save to SD card<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

            File Management<\/h3>\n\n\n\n
              \n
            • Rename a File:<\/strong> Navigate to the File Management interface, select the desired file, and press the [Rename]<\/strong> button to enter a new name.<\/li>\n\n\n\n
            • Delete a File:<\/strong> Navigate to the File Management interface, select the file you wish to remove, and press the [Delete]<\/strong> button.<\/li>\n<\/ul>\n\n\n\n
              \"TN1700<\/figure>\n\n\n\n

              Event Map<\/h3>\n\n\n\n
              Name<\/td>Description<\/td><\/tr>
              Number<\/td>Event number from near end to far end<\/td><\/tr>
              Type<\/td>Attenuation event or reflection event<\/td><\/tr>
              Distance<\/td>The distance from first event to current event.Km in unit<\/td><\/tr>
              Loss<\/td>The loss value at current event, dB in unit<\/td><\/tr>
              Avg.Loss<\/td>The average loss\/km from first event to current event<\/td><\/tr>
              T.Loss<\/td>The total loss from first event to current event dB in unit<\/td><\/tr>
              Reflect<\/td>The reflected signal value (in dB)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
              \"TN1700<\/figure>\n\n\n\n

              * To view the OTDR trace, press the [OTDR]<\/strong> button to open the trace display interface.<\/p>\n\n\n\n

              Light Source (OLS) Module<\/strong><\/h2>\n\n\n\n

              The Laser Source function utilizes the same internal laser module as the OTDR, ensuring their operating wavelengths are identical.<\/p>\n\n\n\n

              Turn On\/Off<\/h3>\n\n\n\n

              Press the [Start]<\/strong> button to activate the laser source. When active, the laser icon in the center of the screen will turn red. When deactivated, the icon will revert to gray.<\/p>\n\n\n\n

              Change Wavelength<\/h3>\n\n\n\n

              Press the [Wave Switch]<\/strong> button to toggle between wavelengths. (Note<\/em>: Available wavelengths depend on your specific OTDR model.)<\/em><\/p>\n\n\n\n

              Change Frequency<\/h3>\n\n\n\n

              Press the [Freq Switch]<\/strong> button to adjust the modulation frequency. Available options are CW (Continuous Wave), 270 Hz, 330 Hz, 1 kHz, and 2 kHz.<\/p>\n\n\n\n

              Exit<\/h3>\n\n\n\n

              Press the [Quit]<\/strong> button to return to the main interface.<\/p>\n\n\n\n

              \u26a0\ufe0f WARNING: EYE HAZARD<\/strong> <\/p>\n\n\n\n

              Never look directly into the laser output port. The emitted laser is invisible but extremely hazardous to the eyes.<\/p>\n\n\n\n

              \"TN1700<\/figure>\n\n\n\n

              Optical Power Meter (OPM) Module<\/strong><\/h2>\n\n\n\n

              Turn On<\/h3>\n\n\n\n

              Press the [Start]<\/strong> button to activate the Optical Power Meter.<\/p>\n\n\n\n

              Change Wavelength<\/h3>\n\n\n\n

              Press the [Wave Switch]<\/strong> button to select the desired wavelength. Available options are 850 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm, 1625 nm, and 1650 nm.<\/p>\n\n\n\n

              Set Reference (REF)<\/h3>\n\n\n\n

              Press the [REF]<\/strong> button to set the current optical power reading as your reference baseline (for relative power measurements).<\/p>\n\n\n\n

              Set Zero<\/h3>\n\n\n\n

              Press the [Zero]<\/strong> button to perform a zero calibration, ensuring measurement accuracy.<\/p>\n\n\n\n

              Exit<\/h3>\n\n\n\n

              Press the [Quit]<\/strong> button to return to the main interface.<\/p>\n\n\n\n

              User Calibration<\/h3>\n\n\n\n

              Users can manually calibrate the Optical Power Meter (OPM) to ensure ongoing measurement accuracy. Follow these steps:<\/p>\n\n\n\n

                \n
              1. Select Wavelength:<\/strong> Access the ‘Wavelength’ menu to select the specific wavelength you wish to calibrate.<\/li>\n\n\n\n
              2. Adjust Power Value:<\/strong> Move the cursor to highlight the power input field. Use the [Up]<\/strong> and [Down]<\/strong> directional keys to match the standard reference power value.<\/li>\n\n\n\n
              3. Confirm and Exit:<\/strong> Press the [OK]<\/strong> button to confirm your adjustment, then exit the interface to complete the calibration process.<\/li>\n<\/ol>\n\n\n\n
                \"TN1700<\/figure>\n\n\n\n

                Visual Light Source (VFL) Module<\/strong><\/h2>\n\n\n\n

                The VFL supports two operating modes: CW (Continuous Wave) and 2 Hz (Flashing).<\/p>\n\n\n\n

                Mode Selection<\/h3>\n\n\n\n

                Press the [CW]<\/strong> button to activate continuous illumination. Press the [2Hz]<\/strong> button to activate the flashing mode.<\/p>\n\n\n\n

                Turn Off<\/h3>\n\n\n\n

                Press the [Shutdown]<\/strong> button to turn off the VFL. When deactivated, the laser icon in the center of the screen will revert to gray. When active, it will turn red.<\/p>\n\n\n\n

                Exit<\/h3>\n\n\n\n

                Press the [Quit]<\/strong> button, then press [OK]<\/strong> to return to the main interface.<\/p>\n\n\n\n

                \u26a0\ufe0f WARNING: EYE HAZARD<\/strong> <\/p>\n\n\n\n

                Never look directly into the VFL output port. This module emits a bright red laser that can cause severe eye damage.<\/p>\n\n\n\n

                \"TN1700<\/figure>\n\n\n\n

                Loss Tester Module<\/strong><\/h2>\n\n\n\n

                The Loss Tester module simultaneously activates the internal Laser Source (transmitter) and the Optical Power Meter (receiver) to measure the total insertion loss of a fiber optic link.<\/p>\n\n\n\n

                Testing Procedure:<\/strong><\/p>\n\n\n\n

                  \n
                1. Preparation:<\/strong> Connect the Laser Source port to the OPM port using a standard reference patch cord. Then, open the ‘Loss Test’<\/strong> module from the main interface.<\/li>\n\n\n\n
                2. Select Wavelength:<\/strong> Press the [Wavelength]<\/strong> button to select your desired testing wavelength.<\/li>\n\n\n\n
                3. Set Reference:<\/strong> Allow the laser source to stabilize (a 5-minute warm-up is recommended). Press the [Reference]<\/strong> button. The Relative Power<\/em> will reset to 0.00 dB<\/strong>, and the Reference Value<\/em> will display the current absolute output power of the laser.<\/li>\n\n\n\n
                4. Connect the Target Fiber:<\/strong> Carefully disconnect the reference cord from the OPM port (\u26a0\ufe0f Note:<\/strong> Do not disconnect the cord from the Laser Source port, as this will invalidate your reference)<\/em>. Use an adapter to connect the fiber under test (FUT) in series between the reference cord and the OPM port.<\/li>\n\n\n\n
                5. Read the Result:<\/strong> The Relative Power<\/em> value now displayed on the screen indicates the exact insertion loss of the tested fiber.<\/li>\n<\/ol>\n\n\n\n

                  <\/p>\n\n\n\n

                  <\/p>\n\n\n\n

                  \"TN1700<\/figure>\n\n\n\n
                  \"TN1700<\/figure>\n\n\n\n

                  <\/p>\n","protected":false},"excerpt":{"rendered":"

                  Safety Warning Power Adapter Input: AC 100-240V, 50\/60Hz, 0.8A Output: DC 5V, 1A (USB Type-C) Note: Please use a power adapter that strictly complies with these specifications. Using an incompatible adapter may result in damage to the device. Battery This instrument contains a built-in lithium battery. To optimize battery performance, please run the instrument on … Leer m\u00e1s<\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[97],"tags":[],"class_list":["post-3760","post","type-post","status-publish","format-standard","hentry","category-otdr-tn1700"],"_links":{"self":[{"href":"https:\/\/firstfibertech.com\/es\/wp-json\/wp\/v2\/posts\/3760","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/firstfibertech.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/firstfibertech.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/firstfibertech.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/firstfibertech.com\/es\/wp-json\/wp\/v2\/comments?post=3760"}],"version-history":[{"count":9,"href":"https:\/\/firstfibertech.com\/es\/wp-json\/wp\/v2\/posts\/3760\/revisions"}],"predecessor-version":[{"id":3951,"href":"https:\/\/firstfibertech.com\/es\/wp-json\/wp\/v2\/posts\/3760\/revisions\/3951"}],"wp:attachment":[{"href":"https:\/\/firstfibertech.com\/es\/wp-json\/wp\/v2\/media?parent=3760"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/firstfibertech.com\/es\/wp-json\/wp\/v2\/categories?post=3760"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/firstfibertech.com\/es\/wp-json\/wp\/v2\/tags?post=3760"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}