Cisco Cisco DWDM Transceiver Modules Guida All'Installazione

The EWDM OADMs are passive devices that can multiplex/demultiplex or add/drop wavelengths from 
multiple fibers onto one optical fiber. The OADM connectors are labeled with the DWDM wavelengths 
to be multiplexed/demultiplexed. All OADMs are the same size. Two OADM modules can be installed 
in a CWDM two-slot chassis (CWDM-CHASSIS-2). There are three different types of EWDM OADM 
modules

The 8-Channel Multiplexer/Demultiplexer (EWDM-MUX8=) allows you to multiplex/demultiplex eight 
DWDM channels and combine them with up to 8 CWDM channels into one pair of fiber. Dual fiber is 
used for both the network connection and the transceiver connections. The eight available wavelengths 
are 1542.94 nm, 1542.14 nm, 1540.56 nm, 1539.77 nm, 1538.98 - 1560.61 nm, 1559.79 nm, and 1558.98 
nm. The multiplexer/demultiplexer, shown in 

, is equipped with a port that allows you to connect 

to the booster amplifier.

The four-channel and two-channel OADM (EWDM-OADM4= and EWDM-OADM2=) allows you to 
respectively add/drop four or two channels (with different wavelengths) and combine them with up to 8 
CWDM channels into one pair of fiber. Dual fiber is used for both the network connection and the 
transceiver connections. The two OADMs, shown in 

 and 

, are equipped with a port that 

allows you to connect to the booster amplifier and support the following wavelengths: 

EWDM-OADM4—1542.94 nm, 1542.14 nm, 1540.56 nm, 1539.77 nm.

EWDM-OADM2—1560.61 nm, 1559.79 nm. 

1

1538.98

2

1539.77

3

1540.56

4

1542.14

5

1542.94

6

1558.98

7

1559.79

8

1560.61

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