LinkRunner® AT 4000 Smart Network & Cable Tester

Description

The LinkRunner® AT 4000 Smart Network & Cable Tester is a high-performance, multifunctional tool designed for modern network professionals working in Multigigabit and fiber Ethernet environments. Combining advanced diagnostics, comprehensive AutoTest capabilities, and sophisticated network discovery features, it delivers powerful troubleshooting and validation for complex networks.

Built for network engineers and technicians managing moves, adds, and changes in dynamic network infrastructures, the LinkRunner AT 4000 offers deeper network visibility, faster fault isolation, and efficient documentation.

Key Features & Benefits:

• Advanced Network Discovery & Mapping:
  Automatically discovers and generates a real-time topology map of your entire network, offering instant visibility and improved management through the Link-Live™ reporting and analysis platform.

• Comprehensive AutoTest:
  Performs an 8-step AutoTest to validate every aspect of network connectivity — including DHCP, DNS, gateway availability, PoE, and link speed — ensuring reliable and consistent performance.

• Link Speed & Duplex Verification:
  Instantly verifies link speed and duplex settings for 10/100 Mbps and 1 Gbps connections, with multigigabit detection for 2.5G, 5G, and 10G NBASE-T links.

• Advanced PoE Testing:
  Tests PoE up to 90W (802.3bt standard) under real load conditions to confirm safe and reliable power delivery to connected devices like IP cameras, VoIP phones, and wireless access points.

• Sophisticated Network Cable Diagnostics:
  Accurately tests cable length, detects wiring faults, and assesses signal integrity, helping to quickly locate and resolve physical infrastructure issues.

• Path Analysis & Packet Capture:
  Includes layer 2 and 3 path analysis to trace data paths between the tester and a destination IP or URL, and features packet capture functionality for deeper inspection of network traffic.

• Intuitive Touchscreen Interface:
  Features a bright 5.0-inch color LCD with a responsive touchscreen for easy navigation and streamlined operation in the field.

• Rugged, Portable Design:
  MIL-PRF-28800F Class 3 rated for durability in demanding environments, making it ideal for use in both enterprise and industrial network settings.

With its broad feature set and intuitive operation, the LinkRunner AT 4000 empowers network professionals to quickly resolve complex network issues, validate installations, and maintain optimal network performance.