SFP Types
- Short Wavelength (SWL)
- Long Wavelength (LWL)
- Extended Long Wavelength (ELWL)
- Wave Division Multiplexing (WDM)
SWL Fiber Optic SFP Module – Based on short-wavelength 850 nm lasers supporting 2 and 4 Gbit/sec link speeds. This SFP module supports 50/62.5µ, multi-mode fiber optic cables, 50µ cable is recommended.
Note: Short-wavelength SPF modules may be labeled MM (for multi-mode), SW, or SWL (for short-wavelength laser).
LWL Fiber Optic SFP Module – Based on long-wavelength 1310nm lasers supporting 2 and 4 Gbit/sec link speeds. This SFP module supports 9µ single-mode fiber optic cables.
ELWL Fiber Optic SFP Module – Based on long-wavelength 1550nm lasers supporting 2 Gbit/sec link speeds. This SFP module supports 9µ single-mode fiber optic cables and distances over 50 km.
WDM Fiber Optic SFP Module – Based on various wavelength lasers ranging from 1470nm to 1610nm supporting 2 Gbit/sec link speeds. Requires external xWDM mux/demux module to transmit multiple wavelengths simultaneously over a single fiber optic cable. WDM devices support long-distance connectivity to 100 km and beyond.
TST_ST01_B20_1:admin> sfpshow Area 0: id (sw) Vendor: FINISAR CORP. Serial No: U85066V Area 1: id (sw) Vendor: FINISAR CORP. Serial No: H11XSF9 . . . [truncated] TST_ST01_B20_1:admin> sfpshow 0 Identifier: 3 SFP Connector: 7 LC Transceiver: 150c402001000000 100,200,400_MB/s M5,M6 sw Inter_dist Encoding: 1 8B10B Baud Rate: 42 (units 100 megabaud) Length 9u: 0 (units km) Length 9u: 0 (units 100 meters) Length 50u: 15 (units 10 meters) Length 62.5u:7 (units 10 meters) Length Cu: 0 (units 1 meter) Vendor Name: FINISAR CORP. Vendor OUI: 00:90:65 Vendor PN: FTRJ8524P2BNV Vendor Rev: A Wavelength: 850 (units nm) Options: 0032 Loss_of_Sig,Tx_Disable BR Max: 0 BR Min: 0 Serial No: U85066V Date Code: 050729 Temperature: 28 Centigrade Current: 6.678 mAmps Voltage: 3319.4 mVolts RX Power: 408.0 uWatts TX Power: 311.9 uWatts TST_ST01_B20_1:admin>
Passive/Active Copper SFP Module
The Copper (Cu) SFP module is based on the High-Speed Serial Data Connection HSSDC2 interface standards. The module provides a female HSSDC2 connector. Passive and Active Copper cables are currently being qualified.
All of the supported SFPs are of the intelligent variety, which means on-board information about the SFP transceiver can be viewed with the sfpShow command.