The OC-3 Small Form-Factor Long-Reach-2 Pluggable (SFP3L2) plugs into ADTRAN OC-3 modules designed to accept Small Form-Factor pluggables. Installed into an appropriate host module, the SFP3L2 provides an OC-3 tributary interface to the supporting system. The SFP3L2 retimes and maps up to three STS-1s or one STS-3c from the OC-3 interface to the high-speed Optical Multiplexer Modules.PRODUCT FEATURES:SONET OC-3 (155.52 Mb/s) 1550 nm, long-reach (LR-2), single-mode, 2-fiber operation;Digital diagnostics via the menus of the host module.This 1550nm Optics SFP is the optical transceiver that slides onto the baseboard (P/N 1184543L4).