Network Cable Tester TU-468L

Product Overview

The Network Cable Tester TU-468L is a compact, easy-to-use tester designed for quick verification of Ethernet and telephone cables. It checks continuity, pair mapping, open/short conditions and provides a clear LED sequence to speed up cable troubleshooting on site.

Key Features

• Supports RJ45 (Ethernet) and RJ11 (telephone) cable testing
• Two operating modes: S (slow automatic) and M (manual)
• Main tester and detachable remote tester for testing installed runs and patch leads
• LED sequence indication for fast pair mapping and fault identification
• Compact size: 105 x 110 mm, portable for field use
• Power supply: 9V battery (not included)

Technical Specifications

• Model: TU-468L
• Size: 105 x 110 mm
• Power: 9V battery (not included)
• Connectors: RJ45 (8 pins) and RJ11 (6 pins)
• Indicator sequence – Main tester: 1-2-3-4-5-6-7-8-G
• Remote tester mapping:
  • RJ45: 1-2-3-4-5-6-7-8-G
  • RJ11: 1-2-3-4-5-6

How to Use

1. Install a 9V battery in the main tester (battery not included).
2. Plug one end of the cable into the main tester and the other end into the remote tester.
3. Select mode: S for slow automatic testing, M for manual step-through testing.
4. Power on the main tester. Observe the LED indicators on both main and remote units.
5. Normal result: LEDs light sequentially from pin 1 to G (ground) indicating correct continuity and pair order.
6. If LEDs skip, double up, or stop, interpret as open, short, split pair, or miswire and re-test accordingly.

Interpreting Results

• Sequential 1-2-3-4-5-6-7-8-G on both units: cable is correctly wired and continuous.
• Missing LED(s): open or broken conductor.
• Multiple LEDs lighting simultaneously or out of order: short or pair split/miswire.
• RJ11 testing: only pins 1 through 6 are used and will sequence accordingly on the remote unit.

Typical Applications

• Installation and verification of Ethernet patch cables and network drops
• Testing telephone handset and wall jack cables (RJ11)
• Troubleshooting patch panels, switches, wall outlets, and cable runs
• Field service and quick diagnostics for IT and telecom technicians

Package Contents

• 1 set Network Cable Tester (main tester plus remote tester)

Notes and Safety

• 9V battery is required but not included. Remove the battery when storing the unit long term.
• Do not use the tester on live telephone or powered network lines; disconnect the line before testing.
• Keep the device dry and operate within normal indoor temperature ranges to ensure reliable results.