Fast Ethernet LAN products have a wide range of new features and capabilities. Auto-sensing, Auto-negotiation and Full Duplex capabilities are optional requirements to the Fast Ethernet (IEEE 802.3u) standard.

Knowing equipment capabilities is essential to optimizing network system performance. In just three seconds, this LANMaster tester decodes the Link Signals and displays the exact configuration of the equipment connected to the Link. The Model 20 verifies Link connectivity to the far end, tests for reported faults and determines polarity of the outlet or cable. This tester require a 9-volt battery (included).