NF-803 - Uncategorized Noyafa - Free user manual and instructions
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| Product Type | Network Cable Tester (RJ45/RJ11) |
| Brand | Noyafa |
| Model | NF-803 |
| Dimensions (approx.) | 130 x 70 x 25 mm |
| Weight | 150 g (main unit only) |
| Power Supply | 9V DC battery (6F22 type) |
| Testable Cables | UTP/STP, RJ45, RJ11/RJ12, BNC, USB (via adapter) |
| Functions | Cable continuity testing, wire mapping, length measurement, fault location, PoE detection |
| Display | Backlit LCD with wire map indication |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -10°C to 50°C |
| Safety Features | Overvoltage protection, low battery indicator, auto power-off |
| Maintenance | Clean with dry cloth; replace battery when low; store in dry place |
| Spare Parts / Repairability | Battery compartment accessible; no user-serviceable parts inside; contact support for repairs |
| General Information | Comes with remote unit, test leads, carrying pouch, user manual |
Frequently Asked Questions - NF-803 Noyafa
How do I test a network cable with the NF-803?
Connect the cable to the main unit and remote unit, then turn on the power. The wire map will display on the LCD to indicate continuity and wiring faults.
Why does my NF-803 show no power?
Check the 9V battery. Replace it if needed. Ensure the battery is inserted with correct polarity. The low battery indicator will flash when voltage is low.
Can I test telephone cables with this device?
Yes, the NF-803 supports RJ11/RJ12 connectors for telephone cables. Use the appropriate adapter if necessary.
What does the 'length measurement' function do?
It estimates the cable length based on capacitance measurement. Connect the cable and select the length mode; the result will be shown on the display.
How to interpret the wire map display?
The LCD shows pairs 1-8. A solid line indicates continuity. An open line means a break. A crossed line indicates a miswiring.
Does the NF-803 detect PoE?
Yes, it can detect Power over Ethernet (PoE) by checking for voltage on pairs. The PoE presence is indicated by an LED or icon on the display.
Why is the cable length reading inaccurate?
Length measurement uses capacitance, which can vary by cable type. For best accuracy, use a known reference cable or calibrate if possible. Cable temperature also affects readings.
Can I test coaxial cables?
Yes, with the optional BNC adapter. Connect the cable to the main unit and use the coax test mode if available.
How do I clean the NF-803?
Use a soft, dry cloth to wipe the casing. Avoid solvents or abrasive cleaners. Do not immerse in water. Clean the test ports with compressed air if dusty.
Where can I find replacement parts?
Contact Noyafa customer support or authorized dealers. The battery compartment is user-accessible, but internal components are not user-replaceable.
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USER MANUAL NF-803 Noyafa
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Product information
Brand : Noyafa
Model : NF-803
Category : Uncategorized