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Cisco CAB-SM-LCSC-1M Note sull'installazione
EWDM OADMs
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
8-Channel Multiplexer/Demultiplexer (EWDM-MUX8=)
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
to the booster amplifier.
Figure 1
Table 2
EWDM Channel ID
1
2
3
4
5
6
7
8
Four-Channel and Two- Channel OADM (EWDM-OADM4= and EWDM-OADM2=)
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
allows you to connect to the booster amplifier and support the following wavelengths:
78-17894-02
Eight Channel Multiplexer/Demultiplexer (EWDM-MUX8=) Front Panel
NETWORK
AMP
RX
TX
EWDM-
IN
MUX8
CWDM-UPG
TX
RX
EWDM-MUX8= Channel Plan
Wavelength (nm)
1538.98
1539.77
1540.56
1542.14
1542.94
1558.98
1559.79
1560.61
EWDM-OADM4—1542.94 nm, 1542.14 nm, 1540.56 nm, 1539.77 nm.
EWDM-OADM2—1560.61 nm, 1559.79 nm.
Cisco Enhanced Wave Division Multiplexing Optical System Installation Note
Figure
1, is equipped with a port that allows you to connect
1560.61
1558.98
1542.14
TX
RX
TX
RX
TX
OUT
1559.79
1542.94
1540.56
TX
RX
TX
RX
TX
Figure 2
1539.77
RX
TX
RX
1538.98
RX
TX
RX
INVISIBLE LASER
DO NOT VIEW
and
Figure
3, are equipped with a port that

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