EXFO America Inc. TK-200-S1-8130-SONET Test kit including FTB-200 Compact Platform 10Gb/s Next-Generation Transport Blazer Test Module Optical Interface: -SFP Transceiver (up to 2.5G) must be specified (see options below). Optical reach will be determined by SFP, -XFP Transceiver (10G) must