Designs and manufactures electronic test equipment for carrier and enterprise networks. The ConnTech 2000 model ESC, an ESCON generator, protocol analyzer, and BERT tester; model FC1, a Fibre Channel Link/BERT tester, operating at 1.0625 Gbits/sec; and model FC2, a Fibre Channel Link/ BERT tester, operating at 2.125 Gbits/sec.