
20Chapter 1 Describing the optical routing system
Figure 3 CWDM OADM network and equipment side connections
To Network
RX
TX
TX
RX
To Network
| RX TX | RX TX | 
| To CWDM GBIC | To CWDM GBIC | 
Equipment side
The CWDM OADM (Figure 4) is installed in a 
Figure 4 CWDM OADM Front Panel
For information about installing a CWDM OADM, see “Inserting a CWDM OADM or a CWDM OMUX” on page 38 . For specifications, see “CWDM OADM specifications” on page 45 .
Network add/drop ring application
The CWDM OADM pulls off a specific wavelength from an optical ring and passes it to a CWDM GBIC of the same wavelength in the switch, leaving all other wavelengths on the ring undisturbed. CWDM OADMs are set to one of eight supported wavelengths (Table 1).
Note: The wavelength of the CWDM OADM and the corresponding
CWDM GBIC must match (see Table 1).