CWDM
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CWDM stands for Coarse Wavelength Divison Multiplexing.
With this technology you can send up from 4 to 16 different "colors" over a fiber-optical-cable. The edge of CWDM to normal fiber-optical-cable is, that you have a mutch higher speed and so you can send mutch more data over one cable than with a normal optical-technology. An other difference is the range, the CWDM have a range of over 50km.
The difference to DWDM is:
- cheaper, because the laser are not cooled.
- greater distance between the fiber
- shorter range
Following GBICs and SFPs are compatible with CWDM
Cisco compatible GBICs:
- CWDM-GBIC-1470
- CWDM-GBIC-1490
- CWDM-GBIC-1510
- CWDM-GBIC-1530
- CWDM-GBIC-1550
- CWDM-GBIC-1590
- CWDM-GBIC-1610
Cisco compatible SFPs: