





The NF-8108 Lan cable Tester represents a new generation of network diagnostic tools, integrating AC filter and analog signaling functions into a single, user-friendly device. It offers three flexible working modes to adapt to diverse cabling scenarios:
AC Filter Mode: Eliminates interference from AC signals for clear, accurate cable tracing
Analog Mode: Delivers stable analog signals for reliable tracking of hidden or bundled cables
PoE Mode: Specialized for testing Power over Ethernet (PoE) cables without damaging connected devices

Equipped with advanced cable length measurement and fault location technology, this RJ45 cable tester precisely calculates cable length and pinpoints fault locations (e.g., breaks, shorts) within a 200-meter range. Its powerful positioning capabilities make it suitable for any work environment—from small office setups to large-scale data centers.
This network cable tester kit combines 5 essential functions to cover all your cabling needs:
1. Cable length measurement (up to 200m)
2. Cable fault testing (locates breaks, shorts, and mismatches)
3. PoE testing (verifies PoE compatibility and power supply)
4. Hub blink (identifies specific network ports)
5. Non-Contact Voltage (NCV) detection (avoids electric shock risks)
With all these features in one device, it’s an indispensable tool for cabling engineers, IT technicians, and network installers.
PoE Information Testing: Clearly identifies which pins supply power, detects real-time voltage output, and verifies compliance with IEEE 802.3af/at standards—ensuring your PoE devices (cameras, access points) receive safe, stable power.
Hub Blink Function: Quickly locates target network ports by triggering the LED light on 10M/100M Hubs or Switches to flash. No more guesswork when managing complex network layouts!
Continuity Testing: Checks the physical status of STP (Shielded Twisted Pair) and UTP (Unshielded Twisted Pair) lan cables, verifying proper connection and identifying open circuits or cross-connections.
NCV Detection: Safely detects the presence of AC voltage (50V-1000V) without direct contact—protecting you from electric shocks while troubleshooting near power lines or live cables.
In large-scale corporate environments, maintaining network integrity is paramount. Cable testers are indispensable for initial installation, troubleshooting intermittent drops, and performing routine maintenance. Technicians use them to verify cable pinouts (T568A/B), measure cable length, identify opens, shorts, and miswires, ensuring that every connection from the patch panel to the workstation meets performance standards for reliable data, voice, and PoE delivery.
For Internet Service Providers and telecom technicians, a network cable tester is a primary diagnostic tool. It is used to qualify and certify installed lines in residential and commercial buildings. This ensures the physical layer is sound before activating service, drastically reducing customer callback rates. It quickly isolates faults to a specific segment, saving valuable time during installations and repairs.
Modern IP-based security systems, including cameras and access control units, rely on structured cabling, often using Power over Ethernet (PoE). Installers use cable testers to verify both data integrity and PoE capability before mounting critical hardware. This preemptive check prevents costly rework and ensures cameras and sensors receive power and communicate reliably with the network recorder.
In industrial settings like factories and PLC (Programmable Logic Controller) environments, robust network connectivity is critical for automation and control. Cable testers are used to diagnose issues in harsh environments where vibration, temperature, and EMI can cause cable degradation. Ensuring a fault-free physical layer is the first step in maintaining the uptime of mission-critical operational technology (OT) networks.
A: It is a handheld device used to verify the electrical connectivity and pin configuration of Ethernet or LAN cables.
A: It quickly identifies faults like open wires, short circuits, or miswiring, saving time during installation or troubleshooting.
A: Connect the main unit to one end of the cable and the remote to the other. The device will indicate pass/fail status for each wire via LED lights.
A: Basic testers check continuity, while advanced models can measure cable length, signal strength, and pinpoint exact fault locations.
Fangbei, a premier manufacturer specializing in network connectors, terminals, electronic components, and cutting-edge network tools.

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