tekit NF-308
NF-308 Multipurpose Network Cable Tester User Manual
Model: NF-308 | Brand: tekit
Introducció
The tekit NF-308 Multipurpose Network Cable Tester is a versatile tool designed for comprehensive cable testing. It allows a single user to perform continuity checks, identify wire errors, and measure cable length for various cable types including 5E, 6E, telephone, coaxial, and USB cables. Its portable design and long battery life make it ideal for field use.

Figure 1: NF-308 Main Tester, Receiver, and Remote Identifier.
Característiques principals:
- One person operation for cable continuity checks.
- Directly hunts 5E, 6E, telephone, coaxial, USB, and other metal cables.
- Identifies wire errors: open, short, jumper wire, reverse connection, or cross-talk interference.
- Determines the distance of open and short circuits.
- Measures length for network cables, telephone cables, etc.
- Portable unit with extended battery life (up to 50 hours standby).
- Automatic time-delay shut-off and backlight for convenience.

Figure 2: Multi-functionality of the NF-308 Cable Tester.
Contingut del paquet
Verifiqueu que tots els elements que s'enumeren a continuació s'inclouen al vostre paquet:
- 1 x Main Tester (NF-308)
- 1 x Receiver (NF-308-S)
- 1 x Remote Identifier (NF-308-R)
- 1 x cable RJ45
- 1 x cable RJ11
- 1 x Cable with Crocodile Clamp
- 1 x BNC Converter Cable
- 1 x Auriculars
- 1 x Manual d'instruccions (aquest document)
- 1 x bossa de transport

Figure 3: Complete Package Contents.
Configuració
Instal·lació de la bateria:
The NF-308 Main Tester and Receiver require 9V laminated batteries (not included). Follow these steps to install the batteries:
- Locate the battery compartment on the back of the Main Tester and the Receiver.
- Feu lliscar la tapa de la bateria.
- Insert a 9V battery, ensuring correct polarity (+/-).
- Tanqueu la tapa de la bateria amb seguretat.

Figure 4: Battery Compartments of Main Tester and Receiver.
Cables de connexió:
The NF-308 features various ports for different cable types:
- RJ45 Master Port (M): For connecting the main end of network cables.
- LOOPBACK RJ45 Port (L): For loopback testing of network cables.
- Hunting RJ45 Port: Used with the receiver for cable hunting.
- Remote Identifier RJ45 Port (R): Connects to the remote identifier for end-to-end testing.
- BNC and RJ11 Converters: For coaxial and telephone line testing.
- Port USB: For USB cable testing.

Figure 5: NF-308 Tester Ports.
Instruccions de funcionament
The NF-308 offers multiple testing modes accessible via its intuitive interface.

Figure 6: NF-308 Main Menu Display.
1. Wiremap Test (Continuity Check):
This function checks the continuity and wiring sequence of network cables (STP/UTP twin twisted cable), coaxial cables, and telephone lines.
- Connect one end of the cable to the Main Tester's appropriate port (e.g., RJ45 Master Port for network cable).
- Connect the other end of the cable to the Remote Identifier (NF-308-R).
- Turn on the Main Tester. Select "WireMap" from the menu.
- The display will show the wiring sequence and identify any open, short, jumper, reverse, or cross-talk errors.

Figure 7: Performing a Wiremap Test.
2. Cable Hunting (Tracing):
Use this function to locate specific cables among a bundle or trace their path.
- Connect one end of the cable to the Main Tester's "Hunting RJ45 Port" or use the crocodile clamp cable for non-RJ45 wires.
- Turn on the Main Tester and select the hunting mode.
- Use the Receiver (NF-308-S) to trace the cable. The receiver will emit an audible tone that increases in volume as it gets closer to the target cable.
- Adjust the receiver's sensitivity (VOL) as needed.

Figure 8: PoE Live Line Finding with the Receiver.
3. Length Measurement:
Measure the length of network cables and telephone cables, and determine the distance to open or short circuits.
- Connect the cable to be measured to the Main Tester. For accurate measurement, ensure the cable is not connected to any active network devices.
- Select "Pair/Length" from the menu.
- The tester will display the cable length in meters or feet.
- If an open or short circuit is detected, the distance to the fault will be indicated.
- Calibració: For optimal accuracy, calibrate the device using a known cable length greater than 5 meters.
4. Port Flashing:
This feature helps identify the port on a switch or router to which a cable is connected by causing the port's LED to flash.
- Connect the Main Tester to one end of the network cable.
- Connect the other end of the cable to a port on the network switch/router.
- Select "Port Flash" from the menu.
- Observe the LEDs on the switch/router; the connected port's LED will flash, allowing for easy identification.
5. Polarity Test:
The NF-308 can perform a positive and negative polarity test, useful for certain wiring configurations.
- Connect the cable to the appropriate port on the Main Tester.
- Select the polarity test function (refer to the device's on-screen menu if not explicitly listed as "Polarity Test").
- The display will indicate the polarity status.
Manteniment
- Neteja: Feu servir un drap suau i sec per netejar el dispositiu. No utilitzeu productes de neteja abrasius ni dissolvents.
- Emmagatzematge: Store the NF-308 in a cool, dry place, away from direct sunlight and extreme temperatures. When not in use for extended periods, remove the batteries to prevent leakage.
- Substitució de la bateria: Replace batteries when the low battery indicator appears on the display to ensure accurate readings and proper operation.
- Manipulació: Handle the device with care to avoid dropping or physical impact, which could damage internal components.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El dispositiu no s'encén. | Piles gastades o instal·lades incorrectament. | Check battery polarity. Replace with fresh 9V batteries. |
| Inaccurate length measurement. | Cable not properly calibrated or connected to active device. | Ensure cable is disconnected from all network devices. Perform length calibration with a known cable length (>5M). |
| No tone from receiver during hunting. | Receiver battery low, sensitivity too low, or main tester not in hunting mode. | Check receiver battery. Increase receiver volume/sensitivity. Ensure main tester is in hunting mode. |
| Wiremap shows errors on a good cable. | Poor connection or damaged remote identifier. | Ensure all connections are secure. Test with a different remote identifier if available. |
Especificacions
| Paràmetre | Valor |
|---|---|
| Model | NF-308 |
| Main Tester Dimensions | 185 x 105 x 50 mm |
| Dimensions del receptor | 218 x 46 x 29 mm |
| Font d'alimentació | Two 9V laminated batteries (not included) |
| Mostra | Special 4*16 character big screen LCD lattice |
| Cable Types Tested | STP/UTP twin twisted cable, coaxial cable, telephone line |
| Cable Types Detected | 5E, 6E, telephone wire, coaxial cable, USB cable and other metal wires |
| Temperatura ambient | -1 °C a +60 °C |
| Tester Ports | RJ45 master port (M), LOOPBACK RJ45 port (L), Hunting RJ45 port, Remote identifier RJ45 port (R), BNC and RJ11 converters |
| LAN Cable Scope | 1 to 350 M (3 to 200 ft) |
| Precisió de calibratge | 3% (+/- 0.5M or +/- 1.5 ft) (calibrating cable > 5M) |
| Shipment Accuracy | 5% (+/- 0.5 M or +/- 1.5 ft) (AMP, AT and T Class 5 cable) |
| Calibració de longitud | Més de 5M |
Suport
For further assistance or technical support regarding your tekit NF-308 Multipurpose Network Cable Tester, please refer to the contact information provided by your retailer or visit the official tekit weblloc.
Si us plau, conserveu el rebut de compra per a qualsevol reclamació de garantia.
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