It is a new category of testers in the industry that meets the emerging needs of network technicians who do not install new cabling but need to troubleshoot operating networks.This testers perform tests that decide whether an existing cabling link will support the requirements for Fast Ethernet (100BASE-TX)Voice over Internet Protocol(VoIP)or Gigabit Ethernet.These test tools furthermore allow the network technician to quickly isolate cabling problems from network protocol or addressing problems

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