OC-12 SR-1/STM I-4 or OC-12 IR-1/STM S-4.1 SFP Optical Transceiver is a Small Form Factor Pluggable (SFP) transceivers are compatible with the SFP Multi-Sourcing Agreement (MSA). They comply with SONET and SDH standards at OC-12 IR-1/STM S-4.1 and OC-12 SR/STM I-4. 

OC-3 LR-2/STM L-1.2 SFP Optical Transceiver is a Small Form Factor Pluggable (SFP) transceivers are compatible with the SFP Multi-Source Agreement (MSA). They comply with SONET and SDH standards at OC-3 LR-2/STM L-1.2. Digital diagnostics functions are available via the 2-wire serial bus specified in the SFP MSA.

OC-3 SR-1/STM I-1 or OC-3 IR-1/STM S-1.1 SFP Optical Transceiver is a Small Form Factor Pluggable (SFP) transceivers are compatible with the SFP Multi-Sourcing Agreement (MSA). They comply with SONET and SDH standards at OC-3 IR-1/STM S-1.1 and OC-3 SR/STM I-1, and are suitable for Fast Ethernet applications. 

OC-48/STM-16 CWDM 50km SFP Optical Transceiver is a CWDM Small Form Factor Pluggable (SFP) transceivers are designed for operation in Metro Access Rings and Point-to-Point networks using SONET, Gigabit Ethernet and Fibre Channel networking equipment. 

OC-48/STM-16 Fixed Channel DWDM 120km SFP Optical Transceiveris a Small Form Factor Pluggable SFP transceivers designed for use in Dense Wavelength-Division Multiplexing (DWDM) links, for up to 120km link lengths and up to 2.7G bit rates.