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Overview
Figure 2
Figure 3
Dual Single-Channel OADMs (CWDM-OADM1-xxxx)
The Dual Single-Channel OADMs (CWDM-OADM1-xxxx) allows you to add/drop two channels of the
same wavelength into the two directions of an optical ring. The other wavelengths are passed through
the OADM. The dual single-channel OADMs are transparent to the 1300-nm wavelength and includes a
1300-nm/1500-nm filter to mix legacy SONET/SDH/ATM ring installations with CWDM installations
on the same optical fiber. Dual fiber is used for both the network and the CWDM GBIC and CWDM SFP
connections. Eight versions of this OADM are available, one for each wavelength of light. (See
The dual single-channel OADMs, shown in Figures
coding of the CWDM GBIC and CWDM SFP transceivers. The dual single-channel OADM modules are
equipped with a monitor port that allows you to attach a power meter or an optical spectrum analyzer to
assist you in monitoring and troubleshooting the network.
Table 2
Product Number
CWDM-OADM1-1470=
CWDM-OADM1-1490=
CWDM-OADM1-1510=
CWDM-OADM1-1530=
CWDM-OADM1-1550=
CWDM-OADM1-1570=
CWDM-OADM1-1590=
CWDM-OADM1-1610=
Table 3
Cisco CWDM Passive Optical System Installation Note
4
4-Channel OADM (CWDM-OADM4-1) Front Panel
NETWORK
PASS
RX
TX
TX
CWDM-
OADM4-1
MONITOR
MONITOR
TX
RX
TX
4-Channel OADM (CWDM-OADM4-2) Front Panel
NETWORK
PASS
RX
TX
TX
CWDM-
OADM4-2
MONITOR
MONITOR
RX
TX
TX
Dual Single-Channel OADMs
Description
Dual single-channel OADM (1470 nm)
Dual single-channel OADM (1490 nm)
Dual single-channel OADM (1510 nm)
Dual single-channel OADM (1530 nm)
Dual single-channel OADM (1550 nm)
Dual single-channel OADM (1570 nm)
Dual single-channel OADM (1590 nm)
Dual single-channel OADM (1610 nm)
provides a comparison of the CWDM passive device types.
1470
RX
RX
TX
TX
1490
RX
TX
RX
TX
1550
RX
RX
TX
TX
1570
RX
RX
TX
TX
4
through 11, are color coded and match the color
1510
RX
1530
RX
INVISIBLE LASER
DO NOT VIEW
1590
RX
1610
RX
INVISIBLE LASER
DO NOT VIEW
Connector Color
Code
Gray
Violet
Blue
Green
Yellow
Orange
Red
Brown
Table
2.)
78-16565-02
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