Cisco CWDM

1© 2006, Cisco Systems, Inc. All rights reserved. Product Overview

© 2006 Cisco Systems, Inc. All rights reserved. Product Overview 1

Cisco CWDM Passive Optical SystemProduct Overview

CA E-Service Training

• Course Developers: Yu-Tien Chi and Lito Pamintuan, Technical Program Managers for Cisco Systems.

• Presenter: Pete King, Technical Program Manager for Cisco Systems.• Revision 1.0



Objectives

Identify:• Cisco CWDM passive optical system overview• Cisco CWDM passive optical system components• Cisco CWDM passive optical system application• Cisco CWDM passive optical system field

replaceable units• Cisco CWDM passive optical system reference

documentation

•Objectives•Identify:•Cisco CWDM passive optical system overview•Cisco CWDM passive optical system components•Cisco CWDM passive optical system application•Cisco CWDM passive optical system field replaceable units•Cisco CWDM passive optical system reference documentation



Cisco CWDM Passive Optical SystemOverview

• Hardware componentsCWDM 2-slot chassisCWDM OADMs

8-channel mux/demux4-channel OADMDual single-channel OADM

WDM splitter cableCWDM transceivers: GBIC, SFP

• Passive: No power supply and electrical connector

• CWDM GBIC/SFP solution• Ring or point-to-point configurations

• The Cisco Coarse Wave Division Multiplexer (CWDM) passive optical system includes the following 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 Gigabit Interface Converter (GBIC) transceivers and CWDM Small Form-Factor

Pluggable (SFP) transceivers• The Cisco CWDM passive optical system is passive because there is no power supply and

there are no electrical connections in the chassis.• The Cisco CWDM passive optical system is used by enterprises and service providers to

multiplex a number of Gigabit Ethernet optical links over a single common network infrastructure trunk, limiting the number of trunks needed to connect one site to another.

• The Cisco CWDM solution allows for a variety of network configurations from multichannel point-to-point to ring configurations. For additional network configurations, please refer to CISCO WDM SERIES OF CWDM PASSIVE DEVICES at:

• http://www-tss.cisco.com/eservice/elearning/vod/cisco_cwdm_passive_system/docs/Cisco_wdm_passive_series_DS1.pdf



Cisco CWDM Passive Optical SystemComponents

• CWDM 2-Slot Chassis• CWDM GBIC and CWDM SFP Transceivers• CWDM OADMs• WDM Splitter Cable

• Cisco CWDM Passive Optical SystemComponents

• CWDM 2-Slot Chassis• CWDM GBIC and CWDM SFP Transceivers• CWDM OADMs• WDM Splitter Cable



• Hot-swappable, installed in external equipment module

• GBIC with SC connector; SFP with LC connector

• 8 available wavelengths• Color code identifying laser

wavelength

Components –CWDM GBIC and CWDM SFP Transceivers

CWDM GBIC

CWDM SFP

1) Color label identifying laser wavelength

2) Alignment groove3) Spring clip4) Transmit optical bore5) Optical bore dust plug6) Receive optical bore7) Color dot identifying laser

wavelength

• The CWDM GBIC and CWDM SFP transceivers are hot-swappable input/output devices. CWDM GBICs/SFPs are not installed in CWDM OADM modules. Instead, they are installed in external equipment modules such as those found on Ethernet switches or routers. These devices permit network connections to CWDM OADM modules using a pair of single-mode fiber-optic cables.

• The two transceiver types have different form factors and use different fiber-optic cable connectors.

• The CWDM GBIC transceiver uses an SC connector.• The CWDM SFP transceiver uses an LC connector.

• The CWDM GBIC and CWDM SFP transceivers are available in eight wavelengths: 1470-nm, 1490-nm, 1510-nm, 1530-nm, 1550-nm, 1570-nm, 1590-nm, and 1610-nm.

• Each CWDM GBIC and CWDM SFP transceiver is color coded to help with installation and to match the connector color on a particular OADM module port of the same wavelength. For example, a yellow dot on the CWDM GBIC and CWDM SFP transceiver represents a laser wavelength of 1550-nm. This matches the yellow colors on a OADM module port of the same wavelength.

• Each external CWDM GBIC and CWDM SFP transceiver is color coded to indicate a specific wavelength. The color code aids an installer in making cable connections to a matching color CWDM OADM module port of the same wavelength. For example, a yellow dot on an external CWDM GBIC and CWDM SFP transceiver represents a laser wavelength of 1550-nm. This GBIC/SFP must be matched to a yellow colored port on anOADM module port that also operates at 1550-nm.



• 19” rack mounted• One RU• Hold two OADMs

Components –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.



• Passive optical devices• Mux/demux or add/drop 1 to 8

optical wavelengths (channels)

• Interfaced to GBIC or SFP transceivers on the equipment side

• Three types of OADMs:8-channel mux/demux4-channel OADMDual single-channel OADM

• Monitor port for network monitoring and troubleshooting

• Color coded port identifying wavelength

Components –CWDM OADMs

• The Cisco CWDM OADM is passive and requires no power.• The CWDM OADMs can add/drop one, four or eight wavelengths (or channels) to/from a

network trunk while passing through the other wavelengths.• Added/dropped channels to/from the CWDM OADMs are interfaced to the CWDM GBIC or

CWDM SFP transceivers on the equipment side, as shown in the cabling diagram. • 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=)• 4-Channel OADM (CWDM-OADM4-1= and CWDM-OADM4-2=)• Dual Single-Channel OADMs (CWDM-OADM1-xxxx)

• All three types of OADM are equipped with a monitor port that allows you to attach an optical power meter or an optical spectrum analyzer to assist you in monitoring and troubleshooting the network.

• The OADM module ports are color coded to help with installation. Each color indicates the wavelength of the port. Each CWDM GBIC and CWDM SFP transceiver is also color coded to match the connector colors on a particular OADM module port of the same wavelength.



• Mux/demux 8 channels on the same fiber

• Connected to network trunk and 1 to 8 GBIC/SFP access links

• 8 available wavelengths

Components – CWDM OADMs8-Channel Mux/Demux

Monitor Port

• The 8-Channel Multiplexer/Demultiplexer (CWDM-MUX-8A=) allows you to multiplex/demultiplex eight separate channels into/from one fiber pair.

• Duplex fiber connectors are used for both the network connection and the CWDM GBIC or CWDM SFP transceiver connections, as shown in the cabling diagram.

• The 8-Channel Multiplexer/Demultiplexer supports the following wavelengths:• CWDM-MUX-8A—1470-nm, 1490-nm, 1510-nm, 1530-nm, 1550-nm, 1570-nm, 1590-

nm, and 1610-nm.



• Add/drop 4 channels and pass through the other wavelengths

• Two versions each with 4 available wavelengths

Components – CWDM OADMs4-Channel OADM

CWDM-OADM4-1

CWDM-OADM4-2

Monitor Ports

Monitor Ports

• The 4-Channel OADM (CWDM-OADM4-1= and CWDM-OADM4-2=) allows you to add/drop four channels while passing through the other wavelengths.

• The two 4-channel OADMs 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.



• Connected to network trunk and 1 to 4 GBIC/SFP access links

Components – CWDM OADMs4-Channel OADM (Cont’d)

• Duplex fiber connectors are used for both the network connection and the CWDM GBIC or CWDM SFP transceiver connections, as shown in the cabling diagram.



• Add/drop 2 channels (same wavelength) and passed through the other wavelengths

• Connected to network trunk and 2 GBIC/SFP access links

• Eight versions each with a single wavelength

Components – CWDM OADMsDual Single-Channel OADM

Monitor Port

• The Dual Single-Channel OADMs (CWDM-OADM1-xxxx) allows you to add/drop two channels while passing through the other wavelengths. Note that the two channels have the same wavelength, one on the West direction and another on the East direction.

• Duplex fiber connectors are used for both the network and the CWDM GBIC and CWDM SFP connections.

• The Dual Single-Channel OADMs support the following wavelengths:• CWDM-OADM1-1470—1470-nm• CWDM-OADM1-1490—1490-nm• CWDM-OADM1-1510—1510-nm• CWDM-OADM1-1530—1530-nm• CWDM-OADM1-1550—1550-nm• CWDM-OADM1-1570—1570-nm• CWDM-OADM1-1590—1590-nm• CWDM-OADM1-1610—1610-nm



• Bidirectional, mux/demux for 1310-nm/1550-nm signals• Two pairs (Y1-Tx/Y1-Rx and Y2-Tx/Y2-Rx) of Y cables are required

1310-nm SC connector (Equipment side)1550-nm LC connector (CWDM side)Network SC connector (Trunk side)

• 1 meter long

Components –WDM Splitter Cable

SITE 1: CWDM-OADM1-1550

W E

SITE 2: CWDM-OADM1-1550

W E

WDM-1300-1550-S1300 nm Optics1300 nm Optics

Trunk

Trunk

Trunk

Trunk

Y1-Rx

Y1-Tx

Y2-Tx

Y2-Rx

• The WDM Y splitter cable provides bidirectional, multiplexing/demultiplexing for 1310-nm and 1550-nm signals. The primary purpose is to allow a SONET/SDH 1310 nm interface to co-exist with CWDM GBIC/SFP 1550 nm wavelengths.

• In this example, two pairs (Y1-Tx/Y1-Rx and Y2-Tx/Y2-Rx) of WDM Y splitter cables are required for transferring signals of 1310-nm and 1550-nm from attached devices through a common network trunk using a point-to-point configuration.

• As shown in the network topology, the Y1-Rx WDM splitter cable receives the 1310-nm signal from the external equipment at the 1300-nm SC connector. The Y1-Rx WDM splitter cable also receives the 1550-nm signal from the Network Tx port of SITE1: CWDM-OADM-1550 at the 1500-nm LC connector. The multiplexed trunk signal leaves the Network SC connector of the Y1-Rx WDM splitter cable. Similarly, the multiplexed trunk signal arrives at the Network SC connector of the Y1-Tx WDM splitter cable. The Y1-Tx WDM splitter cable transmits the 1310-nm signal to the external equipment from the 1300-nm SC connector. The Y1-Tx WDM splitter cable also transmits the 1550-nm signal to the Network Rx port of SITE1: CWDM-OADM-1550 from the 1500-nm LC connector.

• The WDM splitter cable is 1 meter in length.



Cisco CWDM Passive Optical SystemApplication

• Point-to-Point Configuration• Metro Access Ring Configuration

• Cisco CWDM Passive Optical SystemApplication

• Point-to-Point Configuration• Metro Access Ring Configuration



Application –Point-to-Point Configuration

• The point-to-point architecture is used in enterprise campus and service provide networks.• In a point-to-point configuration, two endpoints are directly connected through a fiber link.• The Cisco CWDM GBIC/SFP solution allows customers to add or drop as many as eight

channels (Gigabit Ethernet or Fibre Channel) into a pair of single-mode optical fiber. As a result, the need for additional site to site trunk fiber is minimized.

• Redundant point-to-point links are possible by adding or dropping redundant channels into a second pair of single-mode optical fiber.



Application –Metro Access Ring Configuration

• The metro access ring architecture is used in service provide networks to provide Gigabit Ethernet service for up to eight customers.

• In a metro access ring configuration, multiple nodes (or sites) are connected with a hub location through a ring of single-mode fiber. Each hub-node connection can consist of a single or multiple channels.

• In this example, all 8 channels are multiplexed/demultiplexed at the hub node (the central office). At each Site, a single channel has been inserted to and removed from the CWDM OADM while passing through the 7 remaining channels. For this reason, these types of CWDM devices are called Optical Add/Drop Multiplexers or OADMs.

• Protection from fiber cuts in the ring is achieved by connecting the hub and nodes through both directions of the optical ring.

• For additional network configurations, please refer to CISCO WDM SERIES OF CWDM PASSIVE DEVICES at:

http://www-tss.cisco.com/eservice/elearning/vod/cisco_cwdm_passive_system/docs/Cisco_wdm_passive_series_DS1.pdf



Cisco CWDM Passive Optical SystemField Replaceable Units

Dual single-channel OADM module, 1610 nmCWDM-OADM1-1610Dual single-channel OADM module, 1590 nmCWDM-OADM1-1590


Dual single-channel OADM module, 1530 nmCWDM-OADM1-1530

4-channel OADM module (1470, 1490, 1510, and 1530 nm)CWDM-OADM4-1

8-channel MUX/DEMUX moduleCWDM-MUX8A

CWDM OADM Options


Dual single-channel OADM module, 1470 nmCWDM-OADM1-14704-channel OADM module (1550, 1570, 1590, and 1610 nm)CWDM-OADM4-2

2-slot chassis, 1 RUCWDM-CHASSIS-2

Chassis OptionDescriptionProduct Number

• This section shows a list of available Field Replaceable Units (FRUs) for the Cisco CWDM passive optical system. More FRUs will be added in the future as different components are developed.



Cisco CWDM Passive Optical SystemField Replaceable Units (Cont’d)

Cisco 1000BASE-CWDM, 1510 nm CWDM-GBIC-1510Cisco 1000BASE-CWDM, 1490 nm CWDM-GBIC-1490Cisco 1000BASE-CWDM, 1470 nm CWDM-GBIC-1470

Cisco 1000BASE-CWDM, 1570 nm CWDM-GBIC-1570Cisco 1000BASE-CWDM, 1550 nm CWDM-GBIC-1550Cisco 1000BASE-CWDM, 1530 nm CWDM-GBIC-1530

Cisco 1000BASE-CWDM, 1590 nm CWDM-GBIC-1590

Cisco 1000BASE-CWDM, 1610 nm CWDM-GBIC-1610

CWDM GBIC Transceivers OptionsDescriptionProduct Number



Cisco CWDM Passive Optical SystemField Replaceable Units (Cont’d)

Cisco CWDM 1610-nm SFP; Gigabit Ethernet and 1 and 2 Gb Fibre ChannelCWDM-SFP-1610

WDM Splitter Cable Option1300 nm/1550 nm splitter cableWDM-1300-1550-S

LC to SC Cable OptionsLC to SC connector cable, 1 m CAB-SM-LCSC-1M

LC to SC connector cable, 5 mCAB-SM-LCSC-5M

Cisco CWDM 1510-nm SFP; Gigabit Ethernet and 1 and 2 Gb Fibre ChannelCWDM-SFP-1510Cisco CWDM 1490-nm SFP; Gigabit Ethernet and 1 and 2 Gb Fibre ChannelCWDM-SFP-1490Cisco CWDM 1470-nm SFP; Gigabit Ethernet and 1 and 2 Gb Fibre ChannelCWDM-SFP-1470

Cisco CWDM 1570-nm SFP; Gigabit Ethernet and 1 and 2 Gb Fibre ChannelCWDM-SFP-1570Cisco CWDM 1550-nm SFP; Gigabit Ethernet and 1 and 2 Gb Fibre ChannelCWDM-SFP-1550Cisco CWDM 1530-nm SFP; Gigabit Ethernet and 1 and 2 Gb Fibre ChannelCWDM-SFP-1530

Cisco CWDM 1590-nm SFP; Gigabit Ethernet and 1 and 2 Gb Fibre ChannelCWDM-SFP-1590

CWDM SFP Transceivers OptionsDescriptionProduct Number



• Cisco CWDM Passive Optical System Installation Note

• CISCO CWDM GBIC AND SFP SOLUTION• CISCO WDM SERIES OF CWDM PASSIVE DEVICES• VHO: Cisco CWDM Passive Optical System v1.0

Cisco CWDM Passive Optical System Reference Information

• Cisco CWDM Passive Optical System Reference Information

Cisco CWDM

Documents

Transcript of Cisco CWDM