The 90R Series has three types of fusion splicers suitable for 4-fiber ribbon, 12-fiber ribbon and 16-fiber ribbon. The each type mass fusion splicer has a wide heating area for maximum fibers that can be spliced. The wide electrode gap melts the fibers uniformly and has real-time arc discharge control by analyzing the arc’s brightness intensity. The 90R series does not have active core alignment mechanisms, however, during the discharge, fiber surface tension effects minimize preexisting offsets.