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20 Chapter 1 Describing the optical routing system
212257-B
Figure 3 CWDM OADM network and equipment side connections
The CWDM OADM (Figure 4) is installed in a 19-inch, rack-mounted 1RU
optical shelf (Figure 15).
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).
To CWDM GBIC
To Network
To Network
TX
TX
RX
RX
TXRX
Equipment side
To CWDM GBIC
TXRX
Single-wavelength OADM