1. Uvod
This manual provides comprehensive instructions for the safe and efficient operation of the Komshine QX70 Series Optical Time Domain Reflectometer (OTDR). The QX70 is a versatile instrument designed for fiber optic network testing, featuring a 7.0-inch GUI touch screen, built-in Optical Power Meter (OPM), and Visual Fault Locator (VFL).
Pred uporabo naprave natančno preberite ta priročnik, da zagotovite pravilno delovanje in preprečite poškodbe.
2. Varnostne informacije
Opozorilo: lasersko sevanje
- Do not stare directly into the optical output ports when the device is active. Invisible laser radiation may be present and can cause eye damage.
- Always use appropriate eye protection when working with fiber optic equipment.
- Ensure all connections are clean and free of debris before testing to prevent damage to the device and inaccurate readings.
- Napravo uporabljajte v določenih okoljskih pogojih, da zagotovite optimalno delovanje in dolgo življenjsko dobo.
3. Vsebina paketa
Verify that all items listed below are present in your Komshine QX70 package:
- Komshine QX70-P OTDR Unit (1)
- FC+SC+LC UPC Connectors (Set)
- Testing & Calibration Report (1)
- AC/DC Power Adapter (1)
- Quality Certification (1)
- Trace Analyzing Software CD (1)
- Internal Battery (Pre-installed) (1)
- Uporabniški priročnik (1)
- Torbica (1)

Figure 3.1: Komshine QX70 OTDR with its standard accessories, including the carrying case, user manual, and various fiber optic connectors.
4. Izdelek je končanview
The Komshine QX70 OTDR is a robust and feature-rich device designed for precise fiber optic network analysis. It integrates multiple functionalities into a single portable unit.
4.1 Ključne lastnosti
- Integrirane funkcije: Combines OTDR, Optical Power Meter (OPM), and Visual Fault Locator (VFL) in one device.
- Zaslon visoke ločljivosti: 7.0-inch TFT-LCD touch screen (640x480 resolution) for clear data visualization.
- Fast Processing: Optimized for quick test times and efficient data analysis.
- Short Dead Zones: 0.5m event dead zone and 3m attenuation blind zone for accurate short-distance measurements.
- Link Map Function: Built-in iOLM-like link map for easy identification and characterization of network components.
- Povezljivost: USB and Micro-USB interfaces for data transfer, printer connection, and PC synchronization.
- Trajna zasnova: Features a silicone keypad and robust construction, offering shock, drop, water, and dust resistance.
- Dolga življenjska doba baterije: Equipped with a 6800mAh internal lithium battery providing over 8 hours of continuous operation.

Slika 4.1: Konecview of the Komshine QX70 OTDR's primary features, highlighting its integrated functionalities and user interface.

Figure 4.2: The Komshine QX70 OTDR integrates OTDR, VFL, and OPM capabilities into a single device.

Figure 4.3: The device features a robust silicone keypad designed for durability and resistance to environmental factors.

Figure 4.4: The Komshine QX70 OTDR is built to withstand challenging environmental conditions, including shock, drops, water, and dust.
4.2 Device Layout and GUI
The QX70 features a user-friendly graphical interface accessible via its 7.0-inch touch screen. Physical buttons provide additional control for navigation and function selection.

Slika 4.5: Spredaj view of the Komshine QX70 OTDR, highlighting the display and control panel.

Figure 4.6: The intuitive GUI interface simplifies operation and provides clear visualization of measurement results, including event tables and trace graphs.
5. Nastavitev
5.1 Začetno polnjenje
Before first use, fully charge the internal lithium battery. Connect the AC/DC adapter to the device's charging port and plug it into a power outlet. The charging indicator will show the charging status. A full charge provides over 8 hours of operating life.

Figure 5.1: The QX70 OTDR features a high-capacity 6800mAh battery, providing extended operational time.
5.2 Vklop/izklop
- Za vklop: Press and hold the power button (usually located on the side or front panel) until the screen illuminates.
- Za izklop: Press and hold the power button until a shutdown prompt appears, then confirm. Alternatively, a quick press might bring up a power menu.
5.3 Priključitev optičnih kablov
The QX70 comes with FC, SC, and LC UPC adapters. Select the appropriate adapter for your fiber connector type.
- Ensure the fiber end-face and the OTDR's optical port are clean. Use a fiber optic cleaner if necessary.
- Attach the correct adapter to the OTDR's optical port.
- Carefully insert the fiber optic cable into the adapter. Avoid excessive force.
6. Navodila za uporabo
The Komshine QX70 offers multiple testing modes. Navigate through the touch screen interface to select the desired function.
6.1 OTDR Measurement
- From the main menu, select the "OTDR" function.
- Configure measurement parameters such as wavelength (1310/1550/1625nm), pulse width, distance range, and measurement mode (e.g., Auto, Manual).
- Connect the fiber under test to the OTDR port.
- Press the "Start" or "Measure" button to begin the test.
- The OTDR trace will be displayed on the screen, showing events like splices, connectors, and fiber ends. The iOLM link map function provides a simplified graphical representation.
- Analyze the results using the on-screen tools. Save the trace data for later analysis using the included software.
6.2 Funkcija merilnika optične moči (OPM)
- Select the "OPM" function from the main menu.
- Choose the desired wavelength (850/1300/1310/1490/1550/1625nm).
- Connect the fiber carrying the optical signal to the OPM port.
- The optical power level will be displayed in dBm or mW.
6.3 Funkcija vizualnega lokatorja napak (VFL)
- Select the "VFL" function from the main menu.
- Connect the fiber to the VFL port.
- Activate the VFL. A visible red laser light will be emitted into the fiber.
- Inspect the fiber along its path for light leakage, which indicates breaks, tight bends, or faulty connectors.
7. Vzdrževanje
7.1 Cleaning Optical Ports and Connectors
Regular cleaning of optical ports and fiber connectors is crucial for accurate measurements and to prevent damage. Use only approved fiber optic cleaning tools and methods.
- Always power off the device before cleaning optical ports.
- Use lint-free wipes and isopropyl alcohol or specialized fiber optic cleaning solutions.
- Never use abrasive materials or solvents that are not specifically designed for fiber optics.
7.2 Skrb za baterije
- Redno polnite baterijo, tudi če naprave ne uporabljate pogosto, da ohranite njeno zdravje.
- Izogibajte se pogostemu popolnemu praznjenju baterije.
- Ko naprave ne uporabljate, jo hranite na hladnem in suhem mestu.
7.3 Posodobitve programske opreme
Periodically check the Komshine official website for firmware updates. Keeping the device's software up-to-date ensures optimal performance and access to new features.
8. Odpravljanje težav
| Težava | Možen vzrok | rešitev |
|---|---|---|
| Naprava se ne vklopi. | Prazna ali izpraznjena baterija. | Connect the AC/DC adapter and charge the device. |
| Inaccurate OTDR measurements. | Dirty optical connectors/ports; incorrect parameters. | Clean all optical connections. Verify OTDR settings (wavelength, pulse width, range). |
| VFL light is dim or absent. | Dirty VFL port; VFL not activated; fiber issue. | Clean the VFL port. Ensure VFL function is enabled. Check fiber for severe bends or breaks. |
| Zaslon na dotik se ne odziva. | Začasna programska napaka; potrebna je kalibracija zaslona. | Restart the device. If issue persists, refer to the full user manual for screen calibration instructions. |
If the problem persists after attempting these solutions, please contact Komshine customer support.
9. Specifikacije
The following table details the technical specifications of the Komshine QX70-P OTDR:

Figure 9.1: Physical dimensions of the Komshine QX70 OTDR.
| Funkcija | Podrobnost |
|---|---|
| Model | QX70-P |
| Vrsta meritve | OTDR, OPM, VFL |
| Uporabna vlakna | Networks with PLC Splitters |
| Wavelengths (OTDR) | 1310nm, 1550nm, 1625nm |
| Wavelengths (OPM) | 850/1300/1310/1490/1550/1625nm |
| Dinamični razpon | Up to 32/30/28dB |
| Mrtva cona dogodka | <0.5 m |
| Attenuation Blind Zone | 3m |
| Razdalja | 4, 8, 16, 32, 64, 128, 256km |
| Pulzna širina | 10, 30, 80, 160, 320, 640, 1280, 5120, 1024ns |
| Zaslon | 7.0 inch TFT-LCD (touch screen), 640x480 resolution |
| Vmesniki | USB, Micro-USB |
| Zmogljivost pomnilnika | >10000 sledi |
| Baterija | Built-in lithium, 6800mAh, >8 hours operating life |
| Teža predmeta | 4.54 g |
| Proizvajalec | Komshine Technology Limited |
| barva | Modra |
10. Informacije o garanciji
The Komshine QX70 Series OTDR comes with a enoletna garancija od datuma nakupa. Ta garancija pokriva napake v materialu in izdelavi pri normalni uporabi.
The warranty does not cover damage caused by misuse, accident, unauthorized modification, or operation outside the specified environmental limits. Please retain your proof of purchase for warranty claims.
11. Podpora strankam
For technical assistance, troubleshooting, or warranty inquiries, please contact Komshine customer support.
- Proizvajalec: Komshine Technology Limited
- Webspletno mesto: Refer to the official Komshine website for the latest support contact information, FAQs, and software downloads.
- E-pošta/Telefon: Specific contact details are typically provided on the manufacturer's website or in the included warranty card.
When contacting support, please have your product model (QX70-P) and serial number (if applicable) ready.





