Nortel Networks 10292FA - Manual (Page 20)

20 Chapter 1 Describing the optical routing system
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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
N
e
tw
o
rk
To
N
e
tw
o
rk
TX
TX
RX
RX
TX RX
Equipment side
To CWDM GBIC
TX RX
Single-wavelength OADM