Manuals+

NOYAFA NF-983 (MOT-31)

NOYAFA MOT-31 All-in-One OTDR Fiber Tester User Manual

Model: NF-983 (MOT-31)

1. Introducció

The NOYAFA MOT-31 (NF-983) is a versatile all-in-one OTDR (Optical Time Domain Reflectometer) designed for comprehensive optical fiber and network cable testing. This device integrates multiple functions including OTDR, Optical Power Meter (OPM), Visual Fault Locator (VFL), Laser Source (LS), Optical Loss Test, Cable Tester, Cable Length Measurement, RJ45 TDR Test, PING, IP Scan, and Port Flashing. It is an essential tool for the maintenance, construction, and monitoring of fiber optic links and network cabling projects.

The MOT-31 features a 4-inch IPS touch screen with 800x480 resolution, providing a clear and intuitive user interface. Its robust design includes interface rubber sleeve protection to prevent damage and performance degradation from external environmental factors.

NOYAFA MOT-31 All-in-One OTDR Fiber Tester with multiple function icons
Figure 1: NOYAFA MOT-31 Multi-function OTDR Fiber Tester

2. Contingut del paquet

Marqueu la casella per als elements següents:

  • 1) NF-983 Tester
  • 2) UTP remote kit
  • 3) Manuals
  • 4) Type-C power cable
  • 5) Cotton swab
  • 6) Tool kit
  • 7) Packaging box
Contents of the NOYAFA MOT-31 package including tester, cables, and accessories
Figura 2: Llista d'embalatges

3. Dispositiu acabatview

The NOYAFA MOT-31 is designed for ease of use and durability. Below is an overview of its physical features and interfaces.

3.1. Front Panel and Controls

The device features a 4-inch IPS touch screen for interactive operation. On the right side of the screen, there are physical buttons for quick access to common functions:

  • Clau d'inici: Torna al menú principal.
  • Confirmeu la clau: Confirma seleccions o accions.
  • Clau de retorn: Navega de tornada a la pantalla anterior.
  • Tecla de zoom: Used for zooming in/out on graphs or data.
  • Tecla LED: Activa la llanterna integrada.
Davant view of NOYAFA MOT-31 with screen and labeled buttons
Figure 3: Product Information and Key Layout

3.2. Interfaces and Ports

The MOT-31 includes various ports for different testing functionalities:

  • Optical Power Meter (OPM) Port: For connecting fiber optic cables to measure optical power.
  • Visual Fault Locator (VFL) Port: Emits a red laser for visual fault detection.
  • OTDR Port / Laser Source (LS) Port: Main port for OTDR testing and stable laser source output.
  • Botó d'encesa: Per encendre/apagar el dispositiu.
  • Ranura per a targetes TF: For expandable storage (TF card not included).
  • Type-C 5V 2A Charging Interface: Per carregar el dispositiu i transferir dades.
  • UTP/RJ45 Cable Test Port: For network cable testing (optional, specific to NF-983(MOT-31)).
A dalt i a baix views of the NOYAFA MOT-31 showing labeled ports and interfaces
Figure 4: Device Interfaces

4. Configuració

4.1. Càrrega del dispositiu

The MOT-31 comes with a built-in 3.7V 4000mAh lithium-ion battery. To charge the device:

  1. Connect the provided Type-C power cable to the charging interface on the device.
  2. Connecteu l'altre extrem del cable a un adaptador de corrent de 5 V i 2 A (no inclòs) o a un port USB compatible.
  3. The power indicator will show charging status. A full charge typically takes about 3 hours and provides approximately 6 hours of normal working time.
NOYAFA MOT-31 connected to a charger via USB-C cable
Figura 5: Càrrega del dispositiu

4.2. Encès / apagat

Press and hold the Power button located on the device to turn it on or off.

5. Instruccions de funcionament

The main menu displays various function icons. Tap an icon to select the desired testing mode.

Screen showing multiple core functions of the NOYAFA MOT-31
Figure 6: Multiple Core Functions

5.1. OTDR (Optical Time Domain Reflectometer) Test

The OTDR function is used to measure fiber length, transmission attenuation, splice attenuation, and locate failures in fiber optic links. It supports dual wavelength testing (1310nm/1550nm).

  1. From the main menu, tap the 'OTDR' icon.
  2. Connect the fiber optic cable to the OTDR port.
  3. Select 'Auto OTDR Test' for automatic pulse width and measurement duration settings (test time is typically 5 seconds).
  4. Alternatively, you can manually set parameters such as wavelength (1310nm or 1550nm), pulse width, and range.
  5. Initiate the test. The device will display the OTDR trace, event list, and event map.
  6. The 'Event Map' provides an intelligent link analysis, automatically identifying connectors, welding points, and other events, making it easy to read and analyze.
  7. Test reports can be saved in SOR or PDF format.
NOYAFA MOT-31 performing an OTDR test, showing a fiber trace and dual wavelength support
Figure 7: High Performance OTDR Test
NOYAFA MOT-31 displaying an event map for intelligent link analysis
Figure 8: Event Map Intelligent Link Analysis
NOYAFA MOT-31 performing an Auto OTDR Test
Figure 9: Auto OTDR Test

5.2. Mesurador de potència òptica (OPM)

The OPM function measures the optical power of a fiber optic signal. It supports six wavelengths: 850nm, 1300nm, 1310nm, 1490nm, 1550nm, and 1625nm.

  1. From the main menu, tap the 'OPM' icon.
  2. Connect the measured fiber to the OPM port.
  3. Seleccioneu la longitud d'ona desitjada per a la mesura.
  4. The screen will display the optical power in dBm and relative power in dB.
NOYAFA MOT-31 displaying optical power meter readings
Figure 10: Optical Power Meter Function
NOYAFA MOT-31 performing an Optical Loss Test
Figure 11: Optical Loss Test

5.3. Localitzador visual d'errors (VFL)

The VFL emits a strong red light to quickly locate faults in fiber optic cables by identifying light leakage points.

  1. From the main menu, tap the 'VFL' icon.
  2. Connect the fiber optic cable to the VFL port.
  3. Select the desired mode (Steady mode, Evacive 1Hz, Evacive 2Hz) and duration.
  4. The red light will be emitted, allowing visual inspection for breaks or bends in the fiber.
  5. ADVERTIMENT: Avoid looking directly at the laser source. Damage to the eyes, to avoid eye contact.
NOYAFA MOT-31 performing a Visual Fault Location test with red light emitted
Figure 12: Strong Red Light Fast Fault Location

5.4. Laser Source (LS)

The Laser Source function provides a stable optical power output for various fiber optic applications. It supports wavelengths of 1310nm and 1550nm, with multiple modulation frequencies.

  1. From the main menu, tap the 'Laser Source' icon.
  2. Connect the fiber optic cable to the OTDR/LS port.
  3. Select the desired wavelength (1310nm or 1550nm) and mode (CW, 270Hz, 330Hz, 1000Hz, 2000Hz).
  4. Ajusteu el nivell de potència segons calgui.
  5. ADVERTIMENT: Avoid looking directly at the laser source. Damage to the eyes, to avoid eye contact.
NOYAFA MOT-31 displaying Laser Source settings with wavelength and frequency options
Figure 13: Stable Laser Source

5.5. Cable Test (UTP/RJ45)

This function supports cable sequence testing, length measurement, and RJ45 TDR tests for network cables.

  1. From the main menu, tap the 'Cable Tester' or 'Cable Length' icon.
  2. Connect the RJ45 cable to the UTP/RJ45 Cable Test port. For length measurement, you may need to select the cable type (e.g., UTP CAT 5E).
  3. For RJ45 TDR test, the device can detect open, short, and breakpoint faults.
  4. The screen will display the wiring sequence, continuity status, or cable length.
NOYAFA MOT-31 performing a Cable Test, Length Test, and RJ45 TDR Test
Figure 14: Cable Test / Length Test / RJ45 TDR Test

5.6. Network Test Functions

The NF-983 (MOT-31) model includes advanced network testing capabilities:

  • Prova PING: Verifies network connectivity to a host.
  • Escaneig IP: Discovers active devices on a network.
  • Port intermitent: Helps identify network ports by flashing the link light.
  • LLDP (Link Layer Discovery Protocol): Discovers network topology and device information.
  • PPPOE (Point-to-Point Protocol over Ethernet): Tests PPPOE connection status.

5.7. Llanterna

The built-in white LED flashlight is useful for working in low-light conditions.

NOYAFA MOT-31 with its white LED flashlight illuminated
Figure 15: White LED Flashlight

Video 1: Product demonstration showing various functions and interfaces.

6. Especificacions

The following table details the technical specifications of the NOYAFA MOT-31 (NF-983) OTDR Fiber Tester:

ParàmetreValue (1310nm)Value (1550nm)
Wavelength Optional*13101550
Dynamic range Optional*2624
Amplada del pols5, 10, 20, 30, 50, 80, 160, 300, 500, 800, 1000, 2000, 4000, 6000, 10000, 20000, XNUMX
Interval de proves≤150 Km
Event blind zone≤1.6m
Attenuation blind zone≤8m
Linealitat± 0.05dB/dB
Llindar de pèrdua0.05
Loss resolution ratio0.01
Resolució de distància mínima0.05
Samppunt de ling32-128
Incertesa de la distància± (1 m + 5x10-5x distance + sampinterval de ling)
Distance scope0.5, 1, 2.5, 10, 25, 50, 100, 200
Typical real-time1s
Refreshing durationEs poden seleccionar 5 segons, 10 segons, 15 segons, 30 segons, 1 min, 2 min i 3 min
EmmagatzematgeFLASH (EMMC) + TF card
Tipus d'interfícieSC-PC

Note: Technical specifications are based on typical PC model connector measurements and do not account for optical fiber refractivity uncertainty. Dynamic range is measured with maximum pulse width and 3 minutes average time (200km/20000ns/3min). Blind zone measurements are for reflection events within 5KM with 45dB reflection strength, using minimum pulse width.

7. Manteniment

7.1. Neteja

  • Netegeu la pantalla regularment amb un drap suau i sense pelusa.
  • Use the provided cotton swabs to gently clean optical ports to ensure accurate measurements.
  • Manteniu el dispositiu lliure de pols i residus.

7.2. Emmagatzematge

  • Guardeu el dispositiu a la seva funda protectora quan no l'utilitzeu.
  • Eviteu exposar el dispositiu a temperatures extremes, humitat o llum solar directa.

7.3. Cura de la bateria

  • Charge the battery regularly, even if the device is not used frequently, to maintain battery health.
  • Eviteu esgotar completament la bateria abans de tornar-la a carregar.

8. Solució De Problemes

8.1. El dispositiu no s'encén

  • Ensure the battery is sufficiently charged. Connect the device to the charger and try again.
  • Check the power cable and adapter for any damage.

8.2. Inaccurate Measurements

  • Clean all optical ports and fiber connectors using a cotton swab.
  • Ensure the correct wavelength is selected for the test.
  • Verify that fiber connections are secure and free from bends or damage.
  • For OTDR tests, ensure appropriate pulse width and range settings are used for the fiber length being tested.

8.3. La pantalla tàctil no respon

  • Reinicieu el dispositiu.
  • Assegureu-vos que la pantalla estigui neta i seca.

8.4. Data Transfer Issues

  • Ensure the device is properly connected to the computer via the Type-C USB cable.
  • Check if the device is recognized by the computer's operating system.
  • Verify that the necessary drivers are installed on your computer (if applicable).

9. Consells d'usuari

  • Gestió de dades: The 5V 2A Type-C charger port can also be used as a data interface. Connect the device to a computer to easily copy and manage test files (e.g., SOR, PDF reports) for printing or further analysis.
  • La seguretat primer: Always heed the warnings about avoiding direct eye contact with the laser sources (VFL and LS) to prevent eye damage.
  • Optimal OTDR Testing: For best results in OTDR testing, ensure the fiber is clean and the test parameters (wavelength, pulse width, range) are appropriately configured for the fiber length and type.

10. Garantia i Suport

For warranty information, technical support, or service inquiries, please refer to the official NOYAFA weblloc web o poseu-vos en contacte amb el vostre distribuïdor local. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.

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