EXFO America Inc. TK-200-S1-8120-SONET Test kit including FTB-200 Compact Platform - 2.5Gb/s Transport Blazer Test Module Optical Interface: -SFP Transceiver must be specified (see options below). Optical reach will be determined by SFP. Optical Rates: -Default rate: OC-3 or STM-1, Electri