... longer) in Telco and Broadband networks. Please call or email for information about other length OTDR fiber boxes and Network Simulators, which ... fiberSingle-mode, SMF-281000 m (3281 ft) x1, x2 — connectors for multimode cables, specify type (e.g. ST, SC)y1, y2 ... — connectors for single-mode cables, specify type (e.g. ST, SC, FC ...