The LanMaster 20 link tester tests for 100Base-TX Fast Ethernet and 10Base-T standard Ethernet. The unit can be placed into a hub, switch, network interface card, or wall outlet or attached to a cable with an RJ-45 coupler. The LanMaster decodes the link signals and displays the exact configuration of the equipment connected to the link. The device verifies link connectivity to the far end, tests for reported faults, and determines polarity of the outlet or cable. An RJ-45 coupler and 9-volt battery are included.
JENSEN TOOLS INC.