Intorduction to Lumentis & DWDM Technology By Zaheen Sherwani

SEQUENCE OF PRESENTATION Background Overview Introduction to DWDM Why Lumentis Advantages of using no Optical Amplifiers Introduction to Lumentis 3000 Release A1.3 Lumentis Sub Assemblies Networking Examples Questions and Answers

Background Overview The increasing demand for bandwidth along with the fact that it is relatively very expensive in many cases to lay new fiber implies that we must find ways to increase the capacity on existing fiber. In metro environments, operators and city carriers have mostly built networks based on SONET/SDH technology, which are already operating at full capacities. Moreover there are a variety of diverse formats that must be covered in metro environment including Storage Area Network (SAN), Gigabit Ethernet, 10- Gigabit Ethernet which require separate networks as SONET/SDH was not originally designed to handle them Dense Wavelength Division Multiplexing (DWDM) is a scalable long term solution which addresses all these aspects along with non scraping of existing hardware

Technical Terms SONET/SDH Synchronous Optical Network /Synchronous Digital Hierarchy STM -1/OC -3 Synchronous Transport Module / Optical Carrier B/W=155.52 Mbps. OC defines transmission by optical devices in SONET Specs STM -4/OC -12 B/W= 622 Mbps. STM -16/OC -48 B/W= 2.5 Gbps. DWDM Dense Wavelength Division Multiplexing CWDM Coarse Wavelength Division Multiplexing GbE 802.3z Gigabit Ethernet over optical fiber and shielded twisted pair

Introduction to DWDM Data is transmitted simultaneously at multiple carrier wavelengths over the same fiber (concept similar to frequency division multiplexing in RF) Provides a way to increase the transmission capacity using multiple channels at different wavelengths Extremely efficient in terms of capacity, scalability, and transparency Currently being used for international and national long-haul (LH) networks primarily due to very high deployment and operational costs High cost wide band and high power optical amplifiers are needed to offset the optical losses generated in conventional DWDM solutions even if extended to shorter Metro environments Lumentis has developed a low cost scalable DWDM solution for deployment in Metro networks

Why Lumentis Lumentis solution has a higher tolerance for optical losses Provides a very high capacity without the need for optical amplifiers, therefore can be deployed where conventional DWDM solutions are not feasible One single platform to handle both SONET/SDH and WDM (CWDM & DWDM) traffic Multi rate traffic from 100 Mbps to 10 Gbps. Any distance from 10-250 Km in mix, pt. to pt, bus or ring topologies in metro networks 20 wavelengths channels in C Band, 40 wavelengths in L Band Scalable, protocol transparent and expand as you grow No scalability dead ends

Advantages of using No Optical Amplifiers in Lumentis Solution Low initial investment Easier Wavelength Management More reliable network Lower life cycle costs Minimized site cost 20 wavelengths channels in C Band, 40 wavelengths in L Band More no of Add /drop nodes Each Fiber in the Fiber Pair can be used separately

Lumentis 3000 Release A1.3 02 Units with Release A1.3 held with TSLab 03 Types of Traffic Interfaces Possible Multi Rate Transponder MR 2500 (Not Available in TSLab) Dual Gigabit Transponder DGbE (Qty 04 installed in TSLab Eqpt) SONET/SDH MuxPonder (Not Available in TSLab) Optical Cross Connects OXC 8p OXC 16p Add/Drop Filters 1 Ch Add/Drop (AD 1ch) 2 Ch Add/Drop (AD 2ch) 4 Ch Add/Drop (AD 4ch) Control Unit

Optical Cross Connects Available in two sizes 8 port and 16 port All optical devices Bit rate and Protocol transparent Each port a bidirectional interface which can be connected to any other port of OXC

Dual Gigabit Ethernet Transponder (TP DGbE) Accepts two GbE client signals of IEEE 802.3z standard Fixed bit rate 2.48 Gbps Connects to the Fiber via Add/Drop Filters

1 Ch Add/Drop Units Enables addition/extraction of a wavelength from the aggregated DWDM line fiber Passive Device in a half Height board AD 1Ch

Control Unit (CU) Contains the management Software Configuration Management, Alarm management, Performance management etc RS-232 and RJ-45 Connections Full height board in the first slot Failure doesn't affect traffic flow Stores configuration of the traffics units for redundancy

Networking Example 1

Network Example 2

Proposed Line of Action Understand Layout of Lumentis Boxes Start with Configuration Develop Expertise in configuration Understand MPLS/GMPLS Understand Juniper Routers Integrate the Three elements & Test Shift Eqiptment and Commission

Q & A

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