https://www.wdmlight.com/CWDM-OADM.html
The add-drop multiplexing passive wavelength division card is generally used
in the intermediate nodes of chain or ring-type network, which can selectively
receive and transmit or upload and download some wavelength division channels
from the transmission signal without affecting the transmission of other
channels. The single CWDM add-and-drop multiplexer card supports up to 8
channels add-drop separately in two different directions.
Types of DWDM/CWDM OADM
Functional Structure
Specification
|
Number of channels |
1 |
2 |
4 |
8 |
|
Occupied slot number |
1 |
1 |
1 |
2 |
|
Wavelength range |
CWDM: 1271nm to 1611nm |
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|
Insertion loss |
< 1 dB |
< 1.5 dB |
< 2.5 dB |
< 3.5 dB |
|
Isolation ratio of adjacent channels |
> 30 dB |
> 30 dB |
> 30 dB |
> 30 dB |
|
Isolation ratio of non-adjacent channels |
> 40 dB |
> 40 dB |
> 40 dB |
> 40 dB |
|
Return loss |
> 45 dB |
> 45 dB |
> 45 dB |
> 45 dB |
|
Direction |
> 50 dB |
> 50 dB |
> 50 dB |
> 50 dB |
|
Interface type |
All interfaces are LC type |
|||
|
Work temperature |
-40～85℃ |
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|
Storage temperature |
-40～85℃ |
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