... -Singlemode and multimode testing -Industry's fastest OTDR brand-new EXFO FTB-200 OTDR exfo otdr hot in stock ... capabilitiesmodules: First OTDR ModuleDescriptionD3-XXFTB-7200D-023B-XX, SM OTDR Module, 1310/1550 nm, 36/34 dB ... µm)D19-XXFTB-7400E-0234B-XX-VFL, SM OTDR Module, SM OTDR Module, 1310/1550/1625 nm, 42/41 ... µm)D19-XXFTB-7400E-0234B-XX-VFL, SM OTDR Module, SM OTDR Module, 1310/1550/1625 nm, 42/ ...