The 1830 CWDM shelf shown in Figure: 1830 CWDM shelf layout is an example. For definitive information about the 1830 CWDM device and support, see the 1830 CWDM product manuals.
The following figure shows an example of the 1830 CWDM passive device.
In the preceding figure, Slot 1 is dedicated to the controller card. The controller card, which is named using the acronym EC-CW for the 1830 CWDM device, does not require explicit provisioning. The card type is automatically provisioned when the user configures the 1830 VWM shelf type.
If the controller card is not present in Slot 1 of the shelf, the 1830 CWDM device operates as a passive filter and is not managed by the 7210 SAS. The 7210 SAS provides inventory and equipment management capability only when the controller card is present in the shelf and connected to the 7210 SAS.
Slot 2 and Slot 3 shown in the preceding figure can be equipped with supported CWDM filter cards. The user must provision the cards that populate the slots. The 7210 SAS software checks to ensure a match between the equipped and provisioned card type; an event is logged if a mismatch is detected.