Cisco CWDM-OADM 1 Series Quick start guide

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Cisco CWDM Passive Optical System
Installation Note
This document provides installation instructions for the Cisco Coarse Wave Division Multiplexer
(CWDM) passive optical system. The CWDM passive optical system product numbers are listed in
Table 1.
Table 1 CWDM Passive Optical System Product Numbers
Product Number Description
CWDM-CHASSIS-2= 2-slot chassis, 1 RU
CWDM-MUX8A= 8-channel MUX/DEMUX module
CWDM-OADM4-1= 4-channel OADM module (1470, 1490, 1510, and
1530 nm)
CWDM-OADM4-2= 4-channel OADM module (1550, 1570, 1590, and
1610 nm)
CWDM-OADM1-1470= Dual single-channel OADM module, 1470 nm
CWDM-OADM1-1490= Dual single-channel OADM module, 1490 nm
CWDM-OADM1-1510= Dual single-channel OADM module, 1510 nm
CWDM-OADM1-1530= Dual single-channel OADM module, 1530 nm
CWDM-OADM1-1550= Dual single-channel OADM module, 1550 nm
CWDM-OADM1-1570= Dual single-channel OADM module, 1570 nm
CWDM-OADM1-1590= Dual single-channel OADM module, 1590 nm
CWDM-OADM1-1610= Dual single-channel OADM module, 1610 nm
WDM-1300-1550-S= 1300 nm/1550 nm splitter cable
CAB-SM-LCSC-1M= LC to SC connector cable, 1 m
CAB-SM-LCSC-5M= LC to SC connector cable, 5 m

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Contents
Contents
This installation note contains the following sections:
•Overview, page 2
•Safety Overview, page 9
•Installing the CWDM Passive Optical System, page 15
•Connecting the CWDM Passive Optical System to Your System, page 18
•Specifications, page 25
•Translated Safety Warnings, page 27
•Obtaining Documentation and Submitting a Service Request, page 35
Overview
The Cisco CWDM passive optical system provides optical networking support for high-speed data
communication for metropolitan area networks (MANs) over a grid of eight CWDM optical wavelengths
in both ring configurations or point-to-point configurations.
The Cisco CWDM passive optical system includes these components:
•2-slot chassis for Cisco Optical Add/Drop Multiplexers (OADMs)
•CWDM OADMs
– 8-channel multiplexer/demultiplexer
– Two 4-channel OADMs
– Eight dual single-channel OADMs
•1300 nm/1550 nm WDM splitter cable
•CWDM GBIC and CWDM SFP transceivers
CWDM 2-Slot Chassis
The CWDM 2-slot chassis (CWDM-CHASSIS-2) is a standard 19-inch chassis that is one rack unit (RU)
in height. Each CWDM 2-slot chassis can hold two CWDM OADM modules. You can install the CWDM
2-slot chassis in the same equipment rack as your system or in an adjacent rack so that you can connect
the OADMs to the CWDM GBIC transceivers or the CWDM SFP transceivers.

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Overview
CWDM OADMs
The CWDM OADMs are passive devices that can multiplex/demultiplex or add/drop wavelengths from
multiple fibers onto one optical fiber. The OADM connectors are interfaced to the color-matching
CWDM GBIC or CWDM SFP transceivers on the equipment side. All OADMs are the same size. Two
OADM modules can be installed in a CWDM 2-slot chassis (CWDM-CHASSIS-2). There are three
different types of CWDM OADM modules
8-Channel Multiplexer/Demultiplexer (CWDM-MUX-8A=)
The 8-Channel Multiplexer/Demultiplexer (CWDM-MUX-8A=) allows you to multiplex/demultiplex
eight separate channels into one pair of fiber. Dual fiber is used for both the network connection and the
CWDM GBIC or CWDM SFP transceiver connections. The eight available wavelengths are 1470-nm,
1490-nm, 1510-nm, 1530-nm, 1550-nm, 1570-nm, 1590-nm, and 1610-nm. The
multiplexer/demultiplexer, shown in Figure 1, is 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.
Figure 1 8-Channel Multiplexer/Demultiplexer (CWDM-MUX8) Front Panel
4-Channel OADM (CWDM-OADM4-1= and CWDM-OADM4-2=)
The 4-Channel OADM (CWDM-OADM4-1= and CWDM-OADM4-2=) allows you to add/drop four
channels (with different wavelengths) into one direction of an optical ring. The other wavelengths are
passed through the OADM. The 4-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 GBIC or SFP
connections. The two 4-channel OADMs, shown in Figure 2 and Figure 3, support the following
wavelengths:
•CWDM-OADM4-1—1470-nm, 1490-nm, 1510-nm, and 1530-nm.
•CWDM-OADM4-2—1550-nm, 1570-nm, 1590-nm, and 1610-nm.
The 4-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.
114000
TX
RX
RX
TX
CWDM-
MUX-8A
INVISIBLE LASER
DO NOT VIEW
MONITOR
NETWORK
TX
RX
RX
TX
1530
1510
TX
RX
RX
TX
1490
1470
TX
RX
RX
TX
1570
1550
TX
RX
RX
TX
1610
1590

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Overview
Figure 2 4-Channel OADM (CWDM-OADM4-1) Front Panel
Figure 3 4-Channel OADM (CWDM-OADM4-2) Front Panel
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 Table 2.)
The dual single-channel OADMs, shown in Figures 4through 11, are color coded and match the color
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 3 provides a comparison of the CWDM passive device types.
113998
TX
RX
RX
TX
CWDM-
OADM4-1
INVISIBLE LASER
DO NOT VIEW
MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
PASS
TX
RX
RX
TX
1490
1470
TX
RX
RX
TX
1530
1510
113999
TX
RX
RX
TX
CWDM-
OADM4-2
INVISIBLE LASER
DO NOT VIEW
MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
PASS
TX
RX
RX
TX
1570
1550
TX
RX
RX
TX
1610
1590
Table 2 Dual Single-Channel OADMs
Product Number Description
Connector Color
Code
CWDM-OADM1-1470= Dual single-channel OADM (1470 nm) Gray
CWDM-OADM1-1490= Dual single-channel OADM (1490 nm) Violet
CWDM-OADM1-1510= Dual single-channel OADM (1510 nm) Blue
CWDM-OADM1-1530= Dual single-channel OADM (1530 nm) Green
CWDM-OADM1-1550= Dual single-channel OADM (1550 nm) Yellow
CWDM-OADM1-1570= Dual single-channel OADM (1570 nm) Orange
CWDM-OADM1-1590= Dual single-channel OADM (1590 nm) Red
CWDM-OADM1-1610= Dual single-channel OADM (1610 nm) Brown

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Overview
The OADM module ports are color coded to help with installation. Each color indicates the wavelength
of the port. For more information about the color codes, see the “Connecting the CWDM Passive Optical
System to Your System” section on page 18.
Figure 4 Dual Single-Channel OADM Front Panel (1610 nm)
Figure 5 Dual Single-Channel OADM Front Panel (1590 nm)
Figure 6 Dual Single-Channel OADM Front Panel (1570 nm)
Table 3 CWDM Passive Device Type Comparison
Product Number Device Type
Number of
FiberStrandsto
the Network
Number of
Gigabit
Ethernet Links
(Maximum)
Network
Architecture
Options
CWDM-OADM1-xxxx= OADM (dual
add/drop)
22Ring
(point-to-point
possible)
CWDM-OADM4-1=
CWDM-OADM4-2=
OADM24Ring,
point-to-point
CWDM-MUX8= Mux/Demux 2 8 Ring,
point-to-point
CISCO WDM SERIES
113964
TX
RX
RX TX RX
TX
WEST EAST
1610
EQUIPMENT
NET
CWDM-
OADM1-
1610
INVISIBLE LASER
DO NOT VIEW
TX RX
1610MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
NETWORK
CISCO WDM SERIES
113965
TX
RX
RX TX RX
TX
WEST EAST
1590
EQUIPMENT
NET
CWDM-
OADM1-
1590
INVISIBLE LASER
DO NOT VIEW
TX RX
1590MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
NETWORK
CISCO WDM SERIES
113966
TX
RX
RX TX RX
TX
WEST EAST
1570
EQUIPMENT
NET
CWDM-
OADM1-
1570
INVISIBLE LASER
DO NOT VIEW
TX RX
1570MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
NETWORK

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Overview
Figure 7 Dual Single-Channel OADM Front Panel (1550 nm)
Figure 8 Dual Single-Channel OADM Front Panel (1530 nm)
Figure 9 Dual Single-Channel OADM Front Panel (1510 nm)
Figure 10 Dual Single-Channel OADM Front Panel (1490 nm)
Figure 11 Dual Single-Channel OADM Front Panel (1470 nm)
CISCO WDM SERIES
113967
TX
RX
RX TX RX
TX
WEST EAST
1550
EQUIPMENT
NET
CWDM-
OADM1-
1550
INVISIBLE LASER
DO NOT VIEW
TX RX
1550MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
NETWORK
CISCO WDM SERIES
113968
TX
RX
RX TX RX
TX
WEST EAST
1530
EQUIPMENT
NET
CWDM-
OADM1-
1530
INVISIBLE LASER
DO NOT VIEW
TX RX
1530MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
NETWORK
CISCO WDM SERIES
113969
TX
RX
RX TX RX
TX
WEST EAST
1510
EQUIPMENT
NET
CWDM-
OADM1-
1510
INVISIBLE LASER
DO NOT VIEW
TX RX
1510MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
NETWORK
CISCO WDM SERIES
113970
TX
RX
RX TX RX
TX
WEST EAST
1490
EQUIPMENT
NET
CWDM-
OADM1-
1490
INVISIBLE LASER
DO NOT VIEW
TX RX
1490MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
NETWORK
CISCO WDM SERIES
113971
TX
RX
RX TX RX
TX
WEST EAST
1470
EQUIPMENT
NET
CWDM-
OADM1-
1470
INVISIBLE LASER
DO NOT VIEW
TX RX
1470MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
NETWORK

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Overview
WDM Splitter Cable (WDM-1300-1550-S=)
The WDM splitter cable provides bidirectional, multiplexing/demultiplexing for 1310-nm and 1550-nm
signals. The WDM splitter cable is a Y cable (see Figure 12) with a 1310-nm branch terminating in an
SC connector and a 1550-nm branch terminating in an LC connector. The common trunk branch of the
Y cable is terminated in an SC connector. The WDM splitter cable is 1 meter in length.
Figure 12 WDM Splitter Cable
CWDM GBIC and CWDM SFP Transceivers
The CWDM GBIC and CWDM SFP transceivers are hot-swappable input/output devices that link your
switching module to the CWDM passive optical system using a pair of single-mode fiber-optic cables.
The two transceiver types have different form factors and use different fiber-optic cable connectors.
Figure 13 shows a CWDM GBIC transceiver which uses an SC connector, and Figure 14 shows a
CWDM SFP transceiver which uses an LC connector.
Figure 13 CWDM GBIC
1300nm (1260-1360nm)
SC connector
Network
SC connector
1500nm (1460-1620nm)
LC connector
Splitter cable
(WDM-1300-1550-S=)
120107
1Color label identifying laser wavelength 5Optical bore dust plug
2Alignment groove 6Receive optical bore
3Spring clip 7Color dot identifying laser wavelength
4Transmit optical bore
SINGLE-MODE
1000BASE-CWDM GBIC
CWDM-GBIC-1550=
2
5
6
1
7
3
4
84472

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Overview
Warning Use of controls, adjustments, or performing procedures other than those specified may result in
hazardous radiation exposure. Statement 1057
Figure 14 CWDM SFP
The CWDM GBIC and CWDM SFP transceivers are available in eight wavelengths. (See Table 4.) Each
CWDM GBIC and CWDM SFP transceiver is color coded to match the connector colors on the OADM
modules.
For information on installing, removing, and maintaining the CWDM GBIC and SFP transceivers, refer
to the Cisco CWDM GBIC and CWDM SFP Installation Note that accompanies the CWDM GBIC and
CWDM SFP transceivers.
113753
CWDM-SFP-1470-2G
Class 1 21CFR1040.10
LN#50 7/01 03-13
S/N: OH1233456
Color arrow on label
Receive optical bore
Transmit optical bore
Bail clasp
Dustplug
Table 4 CWDM GBIC and SFP Transceiver Color Codes
GBIC Transceiver
Product Number
SFP Transceiver
Product Number Description
Connector
Color Code
CWDM-GBIC-1470= CWDM-SFP-1470= 1000BASE-CWDM, 1470 nm Gray
CWDM-GBIC-1490= CWDM-SFP-1490= 1000BASE-CWDM, 1490 nm Violet
CWDM-GBIC-1510= CWDM-SFP-1510= 1000BASE-CWDM, 1510 nm Blue
CWDM-GBIC-1530= CWDM-SFP-1530= 1000BASE-CWDM, 1530 nm Green
CWDM-GBIC-1550= CWDM-SFP-1550= 1000BASE-CWDM, 1550 nm Yellow
CWDM-GBIC-1570= CWDM-SFP-1570= 1000BASE-CWDM, 1570 nm Orange
CWDM-GBIC-1590= CWDM-SFP-1590= 1000BASE-CWDM, 1590 nm Red
CWDM-GBIC-1610= CWDM-SFP-1610= 1000BASE-CWDM, 1610 nm Brown

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Safety Overview
Safety Overview
Throughout this publication, safety warnings appear in procedures that, if performed incorrectly, can
harm you. A warning symbol precedes each warning statement.
Statement 1071—Warning Definition
Warning IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar
with standard practices for preventing accidents. Use the statement number provided at the end of
each warning to locate its translation in the translated safety warnings that accompanied this
device.
SAVE THESE INSTRUCTIONS
Waarschuwing
BELANGRIJKE VEILIGHEIDSINSTRUCTIES
Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan
veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij
elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van de standaard
praktijken om ongelukken te voorkomen. Gebruik het nummer van de verklaring onderaan de
waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt
raadplegen.
BEWAAR DEZE INSTRUCTIES
Varoitus
TÄRKEITÄ TURVALLISUUSOHJEITA
Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin
käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu
onnettomuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen
mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien
lausuntonumeroiden avulla.
SÄILYTÄ NÄMÄ OHJEET
Attention
IMPORTANTES INFORMATIONS DE SÉCURITÉ
Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant
entraîner des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez
conscient des dangers liés aux circuits électriques et familiarisez-vous avec les procédures
couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions des
avertissements figurant dans les consignes de sécurité traduites qui accompagnent cet appareil,
référez-vous au numéro de l'instruction situé à la fin de chaque avertissement.
CONSERVEZ CES INFORMATIONS

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Safety Overview
Warnung
WICHTIGE SICHERHEITSHINWEISE
Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen führen
kann. Machen Sie sich vor der Arbeit mit Geräten mit den Gefahren elektrischer Schaltungen und
den üblichen Verfahren zur Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder
Warnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten
Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.
BEWAHREN SIE DIESE HINWEISE GUT AUF.
Avvertenza
IMPORTANTI ISTRUZIONI SULLA SICUREZZA
Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle
persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli
relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti.
Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le
traduzioni delle avvertenze riportate in questo documento.
CONSERVARE QUESTE ISTRUZIONI
Advarsel
VIKTIGE SIKKERHETSINSTRUKSJONER
Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade på person. Før du
begynner å arbeide med noe av utstyret, må du være oppmerksom på farene forbundet med
elektriske kretser, og kjenne til standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten
av hver advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne
enheten.
TA VARE PÅ DISSE INSTRUKSJONENE
Aviso
INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você está em uma situação que poderá ser causadora de
lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha conhecimento dos
perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de
prevenção de acidentes. Utilize o número da instrução fornecido ao final de cada aviso para
localizar sua tradução nos avisos de segurança traduzidos que acompanham este dispositivo.
GUARDE ESTAS INSTRUÇÕES
¡Advertencia!
INSTRUCCIONES IMPORTANTES DE SEGURIDAD
Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular
cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los
procedimientos estándar de prevención de accidentes. Al final de cada advertencia encontrará el
número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña
a este dispositivo.
GUARDE ESTAS INSTRUCCIONES

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Safety Overview
Varning!
VIKTIGA SÄKERHETSANVISNINGAR
Denna varningssignal signalerar fara. Du befinner dig i en situation som kan leda till personskada.
Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och
känna till vanliga förfaranden för att förebygga olyckor. Använd det nummer som finns i slutet av
varje varning för att hitta dess översättning i de översatta säkerhetsvarningar som medföljer denna
anordning.
SPARA DESSA ANVISNINGAR

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Safety Overview
Aviso
INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões
corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os
circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes. Use o
número da declaração fornecido ao final de cada aviso para localizar sua tradução nos avisos de
segurança traduzidos que acompanham o dispositivo.
GUARDE ESTAS INSTRUÇÕES
Advarsel
VIGTIGE SIKKERHEDSANVISNINGER
Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for
legemesbeskadigelse. Før du begynder arbejde på udstyr, skal du være opmærksom på de
involverede risici, der er ved elektriske kredsløb, og du skal sætte dig ind i standardprocedurer til
undgåelse af ulykker. Brug erklæringsnummeret efter hver advarsel for at finde oversættelsen i de
oversatte advarsler, der fulgte med denne enhed.
GEM DISSE ANVISNINGER

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Safety Overview

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Safety Overview
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Warning Ultimate disposal of this product should be handled according to all national laws and regulations.
Statement 1040
Warning Class I (CDRH) and Class 1M (IEC) laser products. Statement 1055
Warning Use of controls, adjustments, or performing procedures other than those specified may result in
hazardous radiation exposure. Statement 1057
Note The maximum output is less than 10 mW when measured through a 3.5-mm apeture located at a distance
of 100 mm and the wavelength is 1470-nm to 1610-nm from the multichannel MUX or OADM module
output connectors. Other fiber-optic ports have been tested and comply with the Class 1 limits of
IEC 60825-1 and Class 1 limits of 21 CFR 1040.10 (with considerations pursuant to FDA Laser
Notice 50, dated July 26, 2001).

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Installing the CWDM Passive Optical System
Installing the CWDM Passive Optical System
The following sections provide installation procedures for the CWDM passive optical system
components:
•Required Tools, page 15
•Installing the 2-Slot Chassis (CWDM-CHASSIS-2=), page 15
•Installing the CWDM OADM Modules, page 16
•Removing the CWDM OADM Module, page 17
•Installing and Removing CWDM GBIC and CWDM SFP Transceivers, page 17
Required Tools
You will need these tools to install the CWDM passive optical system:
•Number 2 Phillips screwdriver for the 10-32 or the 12-24 chassis installation screws.
•Wrist strap or other personal grounding device to prevent ESD occurences.
•Antistatic mat or antistatic foam to set the equipment on.
•Fiber-optic end-face cleaning tools and inspection equipment. For complete information on
inspecting and cleaning fiber-optic connections, refer to the white-paper document at this URL:
http://www.cisco.com/en/US/tech/tk482/tk607/technologies_white_paper09186a0080254eba.shtml
•Level (optional)
•Tape measure (optional)
Installing the 2-Slot Chassis (CWDM-CHASSIS-2=)
Note Ensure that you install the 2-slot chassis in the same rack or an adjacent rack to your system so that you
can connect all the cables between your CWDM OADM modules and the CWDM GBIC and CWDM
SFP transceivers in your system.
Caution When performing the following procedures, wear a grounding strap to avoid ESD damage to the OADM
module. Some platforms have an ESD connector for attaching the wrist strap.
To mount the 2-slot chassis in an equipment rack, follow these steps:
Step 1 Remove the 2-slot chassis from the shipping packaging.
Step 2 Position the 2-slot chassis in the rack where you are going to install it. Align the mounting holes in the
chassis L brackets with the mounting holes in the equipment rack to ensure that the 2-slot chassis is
mounted straight and level. Use a level or tape measure to verify that the chassis is positioned level in
the rack.

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Installing the CWDM Passive Optical System
Step 3 Secure the 2-slot chassis using four (two per side) 12-24 x 3/4-inch screws or four 10-32 x 3/4-inch
screws. Thread the screws through the elongated holes in the L bracket and into the threaded holes in the
mounting post. (See Figure 15.)
Figure 15 Mounting the 2-Slot Chassis in the Rack
Installing the CWDM OADM Modules
Caution When performing the following procedures, wear a grounding strap to avoid ESD damage to the OADM
module. Make sure the other end of the ground strap is securely attached to a grounded point.
To install the CWDM OADM modules, follow these steps:
Step 1 Align the CWDM OADM module with the slot on the 2-slot chassis. (See Figure 16.)
Figure 16 Installing a CWDM OADM Module
68818
120028
TX
RX
RX
TX
CWDM-
OADM4-1
MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
P
ASS
TX
RX
RX
TX
1490
1470
TX
RX
RX
TX
1530
1510
TX
RX
RX
TX
CWDM-
OADM4-2
MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
PASS
TX
RX
RX
TX
1570
1550
TX
RX
RX
TX
1610
1590

17
Cisco CWDM Passive Optical System Installation Note
78-16565-02
Installing the CWDM Passive Optical System
Step 2 Gently push the OADM module into the 2-slot chassis. Ensure that you line up the captive screws on the
OADM module with the screw holes on the 2-slot chassis.
Step 3 Tighten the two captive screws with the Number 2 Phillips screwdriver. Do not overtighten.
Step 4 Do not remove the optical bore dust plugs at this time.
Removing the CWDM OADM Module
Caution When performing the following procedures, wear a grounding strap to avoid ESD damage to the OADM
module.
To remove the OADM module or the multiplexer/demultiplexer module, follow these steps:
Step 1 Disconnect all network interface cables from the OADM module and immediately install dust plugs in
the network interface cable connectors and the OADM connectors.
Step 2 Loosen the captive screw on each side of the OADM module or the multiplexer/demultiplexer module
using a Phillips screwdriver.
Step 3 Gently pull on both captive screws to release the OADM module or the multiplexer/demultiplexer
module from the 2-slot chassis.
Step 4 Pull the OADM module or the multiplexer/demultiplexer module out of the 2-slot chassis, and place it
on an antistatic mat or antistatic foam pad.
Installing and Removing CWDM GBIC and CWDM SFP Transceivers
For information on installing, removing, and maintaining the CWDM GBIC transceivers and CWDM
SFP transceivers, refer to the Cisco CWDM GBIC and CWDM SFP Installation Note that accompanies
the CWDM GBIC and CWDM SFP transceivers.
Caution CWDM SFP and CWDM GBIC transceivers are static-sensitive devices. Always use an ESD wrist strap
or similar individual grounding device when handling or coming in contact with CWDM SFP and
CWDM GBIC transceivers.
Note To prevent contamination, do not remove the optical bore dust plugs from the CWDM SFP and CWDM
GBIC transceivers until directed to do so.

18
Cisco CWDM Passive Optical System Installation Note
78-16565-02
Connecting the CWDM Passive Optical System to Your System
Connecting the CWDM Passive Optical System to Your System
This section is divided into the following topics:
•Connecting Cables to the Dual Single-Channel OADM Module, page 18
•Connecting Cables to the CWDM 4-Channel OADM Module, page 20
•Connecting Cables to the CWDM 8-Channel Multiplexer/Demultiplexer Module, page 23
Note Use the CWDM passive optical system connector color codes shown in Table 2 to help you connect the
CWDM passive optical system to your system.
See Figure 2 through Figure 13 for the OADM and multiplexer/demultiplexer module front panels.
Warning Class 1M laser radiation when open. Do not view directly with optical instruments. Statement 1053
Connecting Cables to the Dual Single-Channel OADM Module
Note Make sure that the CWDM GBIC or CWDM SFP transceiver color code matches the color of the OADM
port to which it is connected.
To connect the cables to the dual single-channel OADM module, follow these steps (see Figure 17):
Step 1 Insert the CWDM GBIC or CWDM SFP transceivers into the appropriate modules on your switch or
router system if you have not already done so. For more information on CWDM SFP and CWDM GBIC
GBIC transceivers, refer to the Cisco CWDM GBIC and CWDM SFP Installation Note that accompanied
your transceivers.
Note Always use single-mode fiber-optic patch cables to connect dual single-channel OADM ports to
the CWDM GBIC or the CWDM SFP transceivers.
Note CWDM GBIC transceivers are equipped with SC connectors. To make connections to the LC
connectors on the OADM modules, you must use an LC to SC patch cable (Cisco part number
CAB-SM-LCSC-1M= [1 meter cable], CAB-SM-=LCSC-5M= [5 meter cable], or an equivalent
patch cable).
Warning Invisible laser radiation may be emitted from the end of the unterminated fiber cable or connector. Do
not view directly with optical instruments. Viewing the laser output with certain optical instruments
(for example, eye loupes, magnifiers, and microscopes) within a distance of 100 mm may pose an eye
hazard. Statement 1056

19
Cisco CWDM Passive Optical System Installation Note
78-16565-02
Connecting the CWDM Passive Optical System to Your System
Figure 17 Cabling a CWDM Dual Single-Channel OADM Module
Note Before removing the dust plugs and making any optical connections, observe the following guidelines:
•Always keep the protective dust plugs on the unplugged fiber-optic cable connectors and the
transceiver optical bores until you are ready to make a connection.
•Always inspect and clean the SC connector end-faces just before making any connections. Refer to
the Tip on this page for a pointer to a fiber-optic inspection and cleaning white paper.
•Always grasp the SC connector housing to plug or unplug a fiber-optic cable.
Step 2 Remove the dust plugs from the network interface cable connector and the transceiver optical bore. Save
the dust plugs for future use.
Step 3 Inspect and clean the connector’s fiber-optic end-faces. Refer to the Tip below for a pointer to the
fiber-optic inspection and cleaning white paper.
Tip For complete information on inspecting and cleaning fiber-optic connections, refer to the whitepaper at
this URL:
http://www.cisco.com/en/US/tech/tk482/tk607/technologies_white_paper09186a0080254eba.shtml
LINK
LINK
120029
CAB-SM-LCSC-1M
SC
connector
CWDM
GBIC
CWDM
SFP
Module
Dual
Single-Channel
OADM module
TX
RX
RX TX RX
TX
WEST EAST
1550
EQUIPMENT
NET
CWDM-
OADM1-
1550
TX RX
1550
MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
NETWORK
TX
RX
RX TX RX
TX
WEST EAST
1570
EQUIPMENT
NET
CWDM-
OADM1-
1570
TX RX
1550
MONITOR
NETWORK
TX
RX
RX
TX
MONITOR
NETWORK
LC connector
LC
connector
To network
To optional optical
spectrum analyzer
To network
To optional optical
spectrum analyzer
Module

20
Cisco CWDM Passive Optical System Installation Note
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Connecting the CWDM Passive Optical System to Your System
Step 4 Connect the single-mode fiber-optic patch cable from the CWDM GBIC or CWDM SFP transceiver to
the OADM module EQUIPMENT connector. Connect the Tx ports to the Rx ports and the Rx ports to
the Tx ports to ensure that the system operates correctly.
a. If you are using CWDM SFP transceivers, use an LC-to-LC patch cable.
b. If you are using CWDM GBIC transceivers, you must use an SC-to-LC patch cable
(CAB-SM-LCSC-1M= or CAB-SM-LCSC-5M=).
Note CWDM GBIC transceivers are equipped with SC connectors. To make connections to the LC
connectors on the OADM modules, you must use an LC to SC patch cable (Cisco part number
CAB-SM-LCSC-1M= [1 meter cable], CAB-SM-=LCSC-5M= [5 meter cable], or an equivalent
patch cable).
Step 5 If you use both channels of the module, repeat Step 4 for the second channel.
Step 6 Connect the network west backbone single-mode fiber-optic cable to the NETWORK WEST connector
on the OADM module, and connect the east backbone single-mode fiber-optic cable to the NETWORK
EAST connector on the OADM module.
Step 7 If you are planning to monitor your network with an optical power meter or an optical spectrum analyzer,
connect your meter or analyzer to the MONITOR port on the OADM.
Connecting Cables to the CWDM 4-Channel OADM Module
Note Make sure that the CWDM GBIC or CWDM SFP transceiver color code matches the color of the OADM
port to which it is connected.
To connect the cables to the CWDM 4-channel OADM module, follow these steps (see Figure 18):
Step 1 Insert the CWDM GBIC transceivers or CWDM SFP transceivers into the appropriate modules on your
switch or router system if you have not already done so. For more information on installing CWDM
GBIC or CWDM SFP transceivers, refer to the Cisco CWDM GBIC and CWDM SFP Installation Note.
Note Always use single-mode fiber-optic patch cables to connect the CWDM OADM ports to the
CWDM GBIC transceivers or CWDM SFP transceivers.
Note CWDM GBIC transceivers are equipped with SC connectors. To make connections to the LC
connectors on the OADM modules, you must use an LC to SC patch cable (Cisco part number
CAB-SM-LCSC-1M= [1 meter cable], CAB-SM-=LCSC-5M= [5 meter cable], or an equivalent
patch cable).