HFBR-152xETZ/HFBR-252xETZ Robust VL Devices Broadcom HFBR-1521ETZ and HFBR-1522 transmitters and HFBR-2521ETZ and HFBR-2522ETZ receivers are Robust Versatile Link (VL) series fiber optic devices designed to help eliminate any electromagnetic interference, crosstalk, and electrical ground problems that are common with copper wire solutions. This makes Broadcom HFBR-152xETZ and HFBR-252xETZ Robust VL fiber optic devices suitable for use in system control or drives in wind turbines and solar farms, traction inverters in trains, and other industrial applications and medical systems.