DWDM training course description
A concise overview of Wave Division Multiplexing (WDM) and Dense Wave Division Multiplexing (DWDM).
Who will benefit?
Anyone working with WDM/DWDM.
DWDM course prerequisites
Introduction to Telecommunications or an understanding of Telecommunications technology
DWDM training course objectives
By the end of the course delegates will be able to:
- Recognise the advantages of WDM over SDH.
- Recognise the differences between WDM and DWDM.
- Illustrate the various SDH equipment and network topologies.
- Describe Dispersion and four way mixing.
- Describe the different equipment components and hardware configurations.
- Describe the problems with Optical Cross connects.
Duration: 2 days
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DWDM
training course contents
Overview of SDH/SONET
The OSI Model, SDH/SONET Standards, Multiplexing Structure,
and bit rates. Paths/ /Lines and Sections. The SDH/SONET
Network Sections. Regenerator and Multiplex Section Overheads.
STM – N Section Overhead. Data Communications Network
(DCN).
Introduction to WDM
WDM vs SDH/SONET. Communications Planes. Difference between
SDH Physical and Photonic Layers. WDM standards. WDM vs.
DWDM.
Protection for WDM
Equipment Protection Options. OMSP 1+1, OMSP 1:1, OMSP 1:
N. Self Healing Optical Ring. WDM protection developments & issues
WDM Equipment Components
Equipment components and building blocks. Optical Terminal
Multiplexers (OTM). Optical Multiplexers (OADM). Optical
Amplifiers. Erbium Doped Fibre Amplifiers (EDFA). Transponders
and Combiners. WDM/DWDM Hubs. Optical and Electrical Cross
Connects (OXC’s/DXC’s). Types of Cross Connects
(Transparent/Opaque). Advantages and disadvantages of various
Optical cross connects.
WDM Network Topologies
WDM Network Sections. Point-to-Point, Mesh and Star Topology.
Example of Combined WDM and other Technology Network.
WDM Management Options
The DCN. Using DCC & OSC to control WDM. Network Control
and Management. OPC Span of Control. Connecting multiple
spans with network manager. Directly Connected OPC’s.
Comms between portioned OPC’s using a DCC Bridge.
Fibre and Light Components
Overview of Fibre, How is Fibre made? Material used to make
Fibre. How does Fibre work? Fibre component parts Options
for modes of Fibre. Multimode Fibre. Monomode Fibre. Fibre
connections. LEDs, Lasers. Dispersion and its effects.
Channel Spacing and Signal Direction. Four Wave Mixing
(FWM). Impact and countermeasures to FWM on WDM.
Transportation of other technologies over WDM
WDM Access. Transparent Networks. SDH/SONET over WDM. IP
over WDM. ATM over WDM.
Current and Ongoing Development in WDM
The current development within WDM. MPLS. The developments
happening in Fibre. The future of WDM. |
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