In conjunction with ITS ETL SEMKO testing laboratories, Graybar has developed a Verified Independently for Performance (VIP) fiber program to test and certify 62.5/125- and 50/125-micron, fiber optic multimode cabling systems. The program meets TIA/EIA and IEEE standards.

Graybar introduced earlier versions of its VIP program, VIP 1000 and VIP 2000 several years ago to test copper channels. ITS ETL SEMKO also performed the testing and monitoring of these original programs.

“Maximizing the performance of a cabling system means supporting the networks of tomorrow, not just those in place today,” says Rob Bezjak, vice president of market development for Graybar. “Fiber still has some mystery to it, but this program removes the guesswork.”

For the location performing the program nearest you, visit