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Recession-Proof Consulting Services with CWDM Network DesignRecession-Proof Consulting Services with CWDM Network Design

Presented By

Ty EstesMarketing Communications Director

Omnitron Systems

Introduction WDM Technology Overview CWDM and Fiber CablingMultiplexing Equipment Application ExamplesWavelength Conversion


About Omnitron Systems

• Founded in 1992

• Corporate Headquarters in Irvine California

• Provides Carrier-GradeFiber Connectivity Solutionsfor Utilities, Service Providers, Enterprise and Government networks

iConverter Products are MEF 9/14/21 and NEBS Level 3 Certified.

iConverter ®

Intelligent Media Converters, CWDM Multiplexers,T1/E1 Multiplexers

and Network Interface Devices

The Only Constant is Change

Government

Utilities & Energy

Education

Enterprises Service Providers

The ChallengeConvergence, New Applications and Services, and Migration to the Next Generation NetworkVideo

High Definition TVInternet VideoIP Security & Traffic VideoDistance Learning

Wireless Backhaul3G and 4G Services

Data Center ConnectivitySaaSCloud Computing Remote Backup

Carrier EthernetEthernet Business ServicesMigration from Legacy Protocols

Are Stretching the Capacity of Fiber Infrastructure

Expanding Capacity of Fiber NetworksThree Options1) Install New Fiber

– New links for each location/application/data type– Expensive and time consuming installation

2) Protocol Converters / Aggregation– Circuit Emulation converges the different applications

into TDM or Ethernet– Expensive and complicated equipment

3) Wavelength Division Multiplexing

Introduction WDM Technology OverviewCWDM and Fiber CablingMultiplexing Equipment Application ExamplesWavelength Conversion


WDM OverviewWavelength Division Multiplexing• Overlaying multiple wavelengths on one fiber link

– Each wavelength is a secure and an independent data channel– Each channel is protocol and speed transparent (up to 10 Gig)– Increases the capacity of the fiber infrastructure

• Inexpensive when compared to alternatives– Installing new fiber (costly and time consuming)– Circuit Emulation (costly and complex – training and support)

• Implementation has no impact to existing network– Legacy 1310nm or 1550nm network treated as additional

CWDM channel

WDM Single Fiber

Single-Fiber utilizes Bi-Directional (BIDI) WDM technology

1310nm

1310nm

1310nm

1550nm

Dual Fiber utilizes one wavelength over two strands of fiber

Two independent wavelengths over one strand of fiber

Rx

Tx

Tx

Rx

Tx / Rx Rx / Tx

WDM Overview

• WDM technology enables a fiber optic cable to carry multiple Wavelengths (Lambdas)

• Each Wavelength is an independent data Channel that can transport any network protocol or data rate

• Additional Channels can be added if the Wavelengths are unique

Dual Fiber Links

DWDM and CWDMDense Wavelength Division Multiplexing

Coarse Wavelength Division Multiplexing

CDWM and Standard Wavelengths

• Standard 1310nm or 1550nm have wider tolerances and utilize more of the spectrum than CWDM wavelengths

• Standard wavelengths can be used in conjunction with the CWDM wavelengths (through Pass Band ports)

• Standard wavelengths are not precise enough for the 20nm filters used in CWDM multiplexers

• Standard wavelengths can be converted to CWDM wavelengths with Transponders or SFPs

Standard 1310

Standard 1550

CDWM Wavelength Band AllocationDifferent “Bands” – or groupings of wavelengths• ITU Bands – 5 bands defined by ITU• Lower Band = lower 10 wavelengths

– “Legacy 1310” is a subset of Lower Band (1270nm to 1360nm.)

• Upper Band = upper 8 wavelengths– Upper 1 (1510, 1530, 1550, 1570) commonly used for CWDM MUXes– Upper 2 (1470, 1490, 1590, 1610) compliments Upper 1

Lower 10 Upper 8

O Band C BandE Band S Band L Band ITU Bands

Upper 1 Upper 2Upper 2

Fiber Types for CWDM ApplicationsSingle Mode Fiber is required for CWDMTypes of Single Mode Fiber • Non-dispersion-shifted (NDSF), G.652, G.652.C &

G.652.D– Most common (see next slide)

• Dispersion shifted fiber, G.653– Not commonly deployed– Zero Dispersion area moved to 1550

• Non-zero dispersion-shifted fiber (NZ-DSF), G.655 – Developed to minimize issues (nonlinear effects) in

DWDM systems.

Fiber Types Optimized for CWDM

Non-dispersion-shifted fiber (NDSF)

Loss(dB/km)

nm1300 1400 1500 1600

1.0

0.9

0.6

0.3

0

G.652G.652C

Water Peak

G.652D

Fiber Types for CWDM Applications

1) Know the type of fiber installed in your network• Contact the manufacturer• Test your fiber links

2) Plan accordingly• Determine the areas of the spectrum that have the

highest attenuation in the fiber link• Use the optimum attenuation areas of the CWDM

spectrum in your design

CWDM MultiplexersCWDM MUXes are Passive Devices

• CWDM Multiplexers modules do not require power to operate

• Pass all data channels transparently• Support data rates up to 10 gig per channel

CWDM MUXes can be Powered• Installing a CWDM MUX module in a powered

chassis enables management of the module

Types of CWDM Multiplexers Dual Fiber and Single-Fiber

1510nm

1530nm

1550nm

1570nm

Common

4 Channel Dual Fiber

1510nm1530nm

1550nm1570nm

Common

2 Channel Single Fiber

Single-Fiber MUXes support 1/2 the Channel Ports of Dual Fiber MUXes

Each Channel is 1 Wavelength

Each Channel is 2 Wavelengths

Types of CWDM MultiplexersMultiplexers are used at each end of a CWDM Common Line to MUX and DMUX wavelengthsOptical Add+Drop Multiplexers (OADM) are used to insert (add) and remove (drop) wavelengths at any point along a CWDM Common Line

Port Definitions Channel Port • A port for a specific CWDM wavelengthCommon Port • A port for the CWDM Common Line that transmits/receives

all multiplexed wavelengths1310 Pass Band Port• Connects directly to standard equipment and enables the

legacy 1310nm wavelength to pass through unaltered• Also used as a Management or Service Channel Expansion Port (AKA Upgrade Port or Express Port)• Cascades multiple MUX/DEMUX modules, e.g.:

two 8-Channel MUX modules yields 16 channels• Can also function as a 1550 Pass Band port

1310 Pass Band Port

MUX/DMUX 4-Channel Modules

Upper 1 Bandwith 1310 Pass Band port

Channel 1 1510nm

Channel 2 1530nm

Channel 3 1550nm

Channel 4 1570nm

Common Port

CWDM MUX/DMUX

CWDM MUX/DMUX

1510nm

1530nm

1550nm

1570nm

1310 PB

Channel PortsDual Fiber

Common (Rx)

Common (Tx)

Common (Tx)

Common (Rx)

4-Channel MUX/DMUX at each end of a dual fiber Common Link provides four independent data paths,

plus a 1310 Pass Band (PB) channel that connects directly to legacy equipment.

Channel Ports

1510nm

1530nm

1550nm

1570nm

1310 PB

4-Channel Dual Fiber with Pass Band

MUX/DMUX 4-Channel Modules

MUX/DMUX Application Example4-Channel Point-to-Point MUX/DMUX with

1310 Pass Band

Four new data channels added to existing fiber link carrying existing 1310nm data.

Legacy 1310 device can be Ethernet, SONET, TDM or other protocol.

1310 Pass Band Port

MUX/DMUX 4-Channel Dual FiberUpper 2 Band with Pass Band portand Expansion port

Channel 2 1490nm

Channel 4 1610nm

Common Port

Channel 1 1470nm

Channel 3 1590nm

1510-1570 Expansion Port

MUX/DMUX Application Example4-Channel Point-to-Point MUX/DMUX with Expansion

Upper 1 Band compliments Upper 2 Band Expansion

Plus 1310 Pass Band over Common Link

Upper 2 Band

Upper 1 BandExpansion

1310 Pass Band

4-Channel Point-to-Point MUX/DMUX with EXP and PB

MUX/DMUX Application Example

Expansion Port can also be used as a 1550 Pass Band Port.Pass Band Port can also be used for Management.

1310 Management

Channel

Legacy 1550Expansion

(1550 Pass Band)

Upper 2 Band

8-Channel Dual FiberUpper 8 Band 1310 Pass Band port

Channel 5 1490nm

Channel 6 1610nm

Common Port

Channel 1 1470nm

Channel 2 1490nm

Channel 7 1610nmChannel 3 1510nm


1310 Pass Band

8-Channel Dual FiberLower 10 Band Channel 2 1350nm

Channel 4 1370nm

Common Port

Channel 1 1270nm

Channel 3 1290nm



? Water Peak

Application Example8-Channel MUX and Two 4-Channel Drops

The Expansion Port also enables a cascade port to another location

OADM ModulesOptical Add+Drop Multiplexers enable CWDM channels to be added and dropped along a CWDM Common Line

1-Channel Dual Fiber OADM 2-Channel Dual Fiber OADM

Right Common Port (All Wavelengths)

Channel 1 Left 1590nm

Left Common Port (All Wavelengths)

All Wavelengths pass through both (Left & Right) Common Ports

Channel 1 Right 1590nm

1590nm is extracted out and inserted in

OADM Modules1-Channel Dual Fiber OADM

Select any Wavelength for Add + Drop

CWDM MUXCWDM MUX

Dual Fiber, Single-Channel OADM

OADM

1570nm (Tx)

1570nm (Rx)

1510nm (Tx)

1530nm (Tx)

1550nm (Tx)

1570nm (Tx)

1510nm (Rx)

1530nm (Rx)

1550nm (Rx)

1570nm (Rx)

Channel Ports

1510nm (Rx)

1530nm (Rx)

1550nm (Rx)

1570nm (Rx)

1510nm (Tx)

1530nm (Tx)

1550nm (Tx)

1570nm (Tx)

Channel Ports

Common (Rx)

Common (Tx)

Common (Tx)

Common (Rx)

1570nm (Tx)

1570nm (Rx)

A dual-direction OADM Adds and Drops a wavelength along the Common fiber route in both directions

Channel Left Port

CommonLeft Port

Common Right Port

Channel Right Port

OADM Application Example

1 Channel OADM with Dual Direction Add+Drop

The 1570nm Channel can be Single Direction (D) E). or Dual Direction (D & E).

Right Common (All Remaining Wavelengths)

Left Common (All Remaining Wavelengths)

All Wavelengths pass through both (Left & Right) Common Ports

Select any Two Wavelengths for Add + Drop

CWDM OADM Modules2-Channel Dual Fiber OADM Channel 1 Left 1510nm


Channel 2 Left 1530nm


OADM & MUX/DMUX ApplicationBus (Linear) Topology with 1-Channel and 2-Channel Add+Drop locations using the Upper 2 Band

A single-direction OADM is used at each location.Note the higher wavelengths utilized for longest distances

due to lowest attenuation.

OADM Ring ApplicationResilient Ring with 1 and 2-Channel Add+Drops

OADMs used to Connect and Bypass Switch Nodes.Many more networks and nodes

can be added to the ring.

Section Summary • CWDM is Cost Effective

– Much less expensive than upgrading switches and routers– Maintain investments in existing equipment

• Rapid Deployments– Passive equipment that is easy to use– Plug and play installations– No disruption to existing service (Spanning Tree / SONET)

Section Summary• CWDM Multiplexers Support Dual and Single-Fiber

– Single Fiber MUXes support ½ the channels of Dual Fiber.

• Wavelength Allocation Provides Design Flexibility– Enables Passing of Legacy 1310nm and 1550nm – Complementing Bands for Expansion Ports– “Workaround” for the 1400nm Water Peak

Section Summary• MUXes and OADMs Provide Flexible Designs

– Add and Drop Linear Bus applications– Pass Band Ports enable overlaying CWDM onto existing

networks– Overlay Channels on SONET and Resilient Ring networks– Expansion Ports provide flexibility for future growth– Expansion Ports also double as 1550 Pass Band,

and enable passing channels to different locations– Both MUXes and OADMs can be used to Connect and

Bypass Nodes on ring networks

CWDM Wavelength Conversion

OK, CWDM is cool stuff.

But how do I connect my equipment to CWDM Muxes?• Small Form Pluggable (SFP) transceivers• Transponders / Wavelength converters• Media Converters that support SFPs

How to Connect Legacy Equipment to CWDM Networks• Small Form Pluggable (SFP) transceivers

are compact interchangeable connectors• CWDM SFPs support 18 ITU-T G694.2 wavelengths

between 1270nm to 1610nm in 20nm increments

• Available with color coded latch handles


Wavelength Color1610nm Brown1590nm Red1570nm Orange1550nm Yellow1530nm Green1510nm Blue1490nm Purple1470nm Gray

http://www.omnitron-systems.com/products/sfp_fiber_transceiver.php�

How to Connect Legacy Equipment to CWDM Networks• CWDM SFPs are used with SFP capable switches to

convert standard wavelengths to CWDM wavelengths


CWDM Wavelength ConversionHow to Connect Legacy Equipment to CWDM Networks• Transponders are Fiber-to-Fiber converters with SFPs

that convert standard wavelengths to WDM wavelengths

• Also converts Multimode Fiber to Single-mode Fiber


CWDM Wavelength ConversionHow to Connect Legacy Equipment to CWDM Networks• Transponders convert fixed fiber ports with legacy

wavelengths to CWDM wavelengths

CWDM Wavelength ConversionHow to Connect Legacy Equipment to CWDM Networks• Media Converters that support SFPs enable

connectivity between copper equipment and CWDM networks

• Support a wide variety of network protocols, cabling and connector types


CWDM Wavelength ConversionHow to Connect Legacy Equipment to CWDM Networks• Media Converters with CWDM SFPs convert copper to

fiber with CWDM wavelengths

CWDM Wavelength ConversionWavelengths from almost any network device can be converted to appropriate CWDM wavelengths

CWDM MUX

1510nm

1530nm

1550nm

1570nm

+Transponder CWDM SFP

(SM 1530nm)ATM Router Standard SFP

(MM 1310nm)

+Fast-E switch (UTP) 10/100 Media Converter CWDM SFP

(1550nm)

CWDM SFP (1510nm)+

Gig-E switch w/SFPs

T3 MUX

+T3 Media Converter CWDM SFP

(1570nm)

Shameless Promotion Section


iConverter CWDM Product Summary

Dual Fiber Products:• 4 and 8 Channel MUX/DMUX • 1 and 2 Channel OADMSingle-Fiber Products:• 2 and 4 Channel MUX/DEMUX• 1 Channel OADM

Multi-Service Platform• Ethernet, Serial & TDM over Fiber• Modular and Compact Chassis

SystemPass Band and Expansion Ports• Flexible and Scalable Deployments

iConverter Multi-Service Platform

Phone: 949-250-6510Toll Free: 800-675-8410

[email protected]@omnitron-systems.com

www.omnitron-systems.com

Omnitron SystemsContact Information

Thank You

Q and A

Thank You

Q and A

Ty EstesMarketing Communications Director

Omnitron Systems

recession-proof consulting services with cwdm … · recession-proof consulting services with ......

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