SFP-OC48-SR= OC-48c/STM-16 pluggable short-reach (2 km) transceiver module, 1310-nm wavelength, LC connector SFP-OC48-SR= SFP-OC48-SR= CISCO OPTICAL TRANSCEIVER OC-3/OC-12/OC-48 SFP Transceiver Description SFP-OC48-LR2= OC-48c/STM-16 pluggable long-reach (80 km) transceiver module, 1550-nm wavelength, LC connector SFP-OC48-IR1= OC-48c/STM-16 pluggable intermediate-reach (15 km) transceiver module, 1310-nm wavelength, LC connector SFP-OC48-SR= OC-48c/STM-16 pluggable short-reach (2 km) transceiver module, 1310-nm wavelength, LC connector SFP-OC12-LR2= OC-12/STM-4 pluggable long-reach (80 km) transceiver module, 1550-nm wavelength, LC connector SFP-OC12-LR1= OC-12/STM-4 pluggable long-reach (40 km) transceiver module, 1310-nm wavelength, LC connector SFP-OC12-IR1= OC-12/STM-4 pluggable intermediate-reach (15 km) transceiver module, 1310-nm wavelength SFP-OC12-SR= OC-12/STM-4 pluggable short-reach (2 km) transceiver module, 1310-nm wavelength, LC connector SFP-OC12-MM= OC-12/STM-4 pluggable short-reach (2 km) transceiver module, 1310-nm wavelength, MMF, LC connector SFP-OC3-LR2= OC-3/STM-1 pluggable long-reach (80 km) transceiver module, 1550-nm wavelength, LC connector SFP-OC3-LR1= OC-3/STM-1 pluggable long-reach (40 km) transceiver module, 1310-nm wavelength, LC connector SFP-OC3-IR1= OC-3/STM-1 pluggable intermediate-reach (15 km) transceiver module, 1310-nm wavelength, LC connector SFP-OC3-SR= OC-3/STM-1 pluggable short-reach (2 km) transceiver module, 1310-nm wavelength, LC connector SFP-OC3-MM= OC-3/STM-1 pluggable short-reach (2 km) transceiver module, 1310-nm wavelength, MMF, LC connector