Non-compliant SFP types
White Rabbit standard SFP types
1310/1490nm single strand
White Rabbit should follow the 1000BASE-BX10 standard and use 1310/1490nm* pairs with a single LC connector. See SFP for compatible types.
Non-compliant SFP types
1550/1310nm single strand
The following SFP transceivers use 1550/1310nm, which is not compliant to the 1000BASE-BX10 standard. Therefore they should not be used in White Rabbit installations.
Brand | Switch side | Node side | Remarks |
Optoway | SPB-7710LG | SPB-7610LG | wavelengths 1550/1310nm instead of 1490/1310nm (Tom) |
TP-Link | TL-SM321A | TL-SM321B | wavelengths 1550/1310nm instead of 1490/1310nm (Achim) |
1271/1331nm single strand
The following SFP transceivers use 1271/1331nm DFB laser, which is not compliant to the 1000BASE-BX10 standard, but with 10GBASE-LR/LW. Therefore they should not be used in White Rabbit installations. However, for specific applications where it is important to have a much closer spacing of the wavelengths, it may be interesting to use these types.
Brand | Switch side | Node side | Remarks |
Finisar | FTLX2071D3xx | FTLX2071D3xx | 10km reach 10GBASE-LR/LW full-duplex on SMF single strand. Wavelengths 1271/1331 nm instead of 1490/1310nm (Erik) |
1470nm to 1610nm in 20nm steps dual strand
The following SFP transceivers use DFB lasers with wavelengths from
1470nm to 1610nm in 20nm steps* (selected on purchase). This is not
compliant to the 1000BASE-BX10 standard, but with 1000BASE-ZX or other
speeds. Therefore they should not be used in White Rabbit
installations. However, for specific applications where it is important
to have a specific wavelength to be sent over CWDM networks (coarse
wavelength division multiplexing), it may be interesting to use these
types.
Some types are even specified for a transmission over 120 km.
Achim Vollhardt, Erik van der Bij - 28 January 2013