1 / 39

LambdaDriver ™ family

LambdaDriver ™ family. Wave Division Multiplexing. MAN Bandwidth Demand. Bandwidth doubling every 6-9 months Traffic nature more complex: TDM,ATM,FR,IP data, VoIP&Video Rapid grow in SAN and distributed processing. Source: CIBC World Markets, June 2001. Enterprise WAN Bandwidth migration.

jeanette-leroy
Download Presentation

LambdaDriver ™ family

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LambdaDriver™ family Wave Division Multiplexing

  2. MAN Bandwidth Demand • Bandwidth doubling every 6-9 months • Traffic nature more complex: TDM,ATM,FR,IP data, VoIP&Video • Rapid grow in SAN and distributed processing Source: CIBC World Markets, June 2001

  3. Enterprise WAN Bandwidth migration

  4. Options for increasing throughput • Increase the Speed Limit: Now 2001 2003? 1Gbps ->2.5Gbps ->10Gbps -> 40Gbps(OC768) -> 160Gbps • More wavelengths on the fiber: 1990 2001 1->2->4->16->32->160 --->? • Widen the band windows (widen the road)

  5. Optical Transmission Bands Bands: Short 1470-1530nm Conventional 1530-1570nm Long 1570-1610nm

  6. Multiplexing techniques Tributaries are sent in specific time slots Electrical Signal Inputs TDM Tributaries are sent when capacity is available Electrical Signal Inputs SMUX Tributaries are sent on different wavelengths Optical or Electrical Signal WDM

  7. WDM Market size

  8. WDM principle Input channels Output channels Mux DeMux λ1 - λn Ch#1 Ch#1 Multiple wavelengths transmission over single fiber Ch#n Ch#n

  9. DWDM versus CWDM ITU Grid Standard(G692)

  10. How close can they(l’s) be? • Current filters can discriminate to around 25Ghz • Min. Spacing = Max. Bit Rate x 2.5

  11. WDM versus TDM

  12. OC48 OC48 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km 40Km RPTR RPTR RPTR RPTR OC48 RPTR RPTR RPTR RPTR RPTR RPTR RPTR RPTR RPTR RPTR RPTR RPTR RPTR RPTR RPTR RPTR OC48 OC48 OC48 OC48 OC48 DWDM eliminates Regenerators TDM Transmission – 10Gbps DWDM Transmission – 10Gbps 120Km 120Km 4 x OC48 OA OA 4 x OC48

  13. SONET with WDM • Existing SONET equipment investments can be preserved by using WDM as transport layer • SONET multiplexing equipment can be eliminated by direct connection to OC48 interfaces OC-n SONET Fiber W D M OC48 ATM Switch OC48 Router

  14. Upgrading SONET/SDH 3 options for upgrading SONET ring: • Replace equipment, like OC48 to OC192 • Install a new ring on new or existing dark fiber • Install one or more new rings by deploying WDM over existing fiber. May be the most important application in the near term!

  15. Migration steps from SONET/SDH to WDM Direct interfacing With edge equipment 1 3 2 Exchanging SONET ADM’s with OADM’s

  16. LambdaDriverTM structure λ1 Ch#1 Transponder 1 λ2 λ15 λ1 Mux Demux Access Channels at “gray” wavelengths λ1 – λ16 λ2 λ15 λ16 Dual Fiber Link Transponder 16 λ16 Ch#16

  17. Transponders • Converts the access(gray) wavelength to WDM specific wavelength(and vice versa). • Performs 3R (reshape,retime,retransmit) function • Hot swappable, undependable modules

  18. Multi-wavelength signal Demultiplexed Wavelengths Demultiplexed Wavelength DeMux Multiplexer/Demultiplexer Passive units which combine (Multiplex) number of incoming fibers into one fiber and splits (DeMultiplex) one fiber into number of outgoing fibers.

  19. OADM “dropped” wavelength “added” wavelength OADM “dropped” wavelength “added” wavelength Optical Add/Drop Multiplexing • When building a Ring topology only part of the wavelengths need to be dropped/added at every node. • OADM’s – “pass through” without substantial attenuation all the channels that are not dropped at that location.

  20. 1+1 Protection Provides automatic optical protection for the link Primary link DeMUX MUX Secondary link

  21. Post OA Pre OA Line OA Post OA DeMUX MUX Site B Site A Optical Amplifier • This is an optional module, used for long(more than 50Km) distances. No OEO conversion! • Could be placed after MUX(post), before DeMUX(pre) or between sites (in line). • Currently available only for DWDM wavelengths range

  22. EDFA Principle EDFA - Erbium-doped fiber amplifier – amplifies light in the 1540 nm window.

  23. LambdaDriver™ Management • Provides configuration and link fault monitoring • Runs the management tasks and interfaces external managers by means of SNMP, Telnet and CLI. Redundant CPU – optional. • OSC (Optical Service Channel) – allows management of the remote unit using separate wavelength (1310nm). • Service module – responsible for combining/splitting the OSC with the WDM trunk

  24. Access Protocols • Potentially any protocol with rates from 100Mbps up to 10Gbps… • LambdaDriver™ family currently supports: Fast Ethernet, Gigabit Ethernet, Fiber Channel, OC3, OC12 and OC192 protocols … • Other rates are possible per request. • Rate Adaptive Transponders are available.

  25. LambdaDriver™ Family LD1600 – 16 slot modular chassis for up to 16 DWDM channels LambdaDriver 1600 front view

  26. Mux/DeMux Power Supplies Transponders LambdaDriver™ Family • LD800 – 8 slot modular chassis for up to 8 DWDM/CWDM channels, OADM and media converters managed hub. • Targeted for lower bandwidth and cost applications. • Will host the same type of transponders as in the LD1600 box. • Will host either 8 channel DWDM, 4 channel CWDM or OADM cards

  27. Lambda Driver™ Family • LD10x – Stand alone units for media conversion and • 2 wavelength single fiber operation. • Currently available the following products: • FE copper to fiber (Multimode&Singlemode) • converters with dual and single fiber operation.

  28. Network Topologies Point-To-Point connection between two sites

  29. Network Topologies Ring topology implemented by loop backs

  30. Network Topologies Master Site Slave Site B Slave Site A Ring Trunk Ring Trunk Ring Traffic Output Ring Traffic Input OADM OADM Mux/DeMux Dropping ch#5 Adding ch#5 Dropping ch#1 Adding ch#1 Ring topology implemented by OADM’s

  31. Single fiber operation

  32. Transponder Transponder Transponder Access switches LD1600 WDM Wavelength WDM Trunk WDM Wavelength Mux/DeMux WDM Wavelength Switches/Routers with WDMwavelength uplinks LD1600 Access switches WDM Trunk Mux/DeMux Transponders elimination by using WDM wavelengths on switches

  33. Advantage in using switches with WDM Add/Drop uplinks Add/Drop Site Ring Trunk Ring Trunk OADM Add/Drop Site Ring Trunk Ring Trunk Adding ch#1 Dropping ch#1 Switch Switch Cost and space savings

  34. Building a Ring with WDM oriented switches Switch with WDM Wavelength uplinks Switches with WDM Add/Drop uplinks LD1600

  35. Road map Q3: • LD1600, LD800– betha testing • LD10x – first customer shipment Q4: • OADM for DWDM & CWDM betha testing • OADM uplinks for Optiswitch switches • WDM Gigabit uplink for Optiswitch switches • LD10x – managed solutions

  36. Sub-rate MUX Low Speed Protocols ITU wavelength Road map Q1/2002: • Sub Rate multiplexer - Low rate protocols(like ESCON ) are TDM multiplexed for maximum utilization of the available wavelength

  37. 2002 year developments AND… Going Wireless!

  38. Summary of LambdaDriver™ Main features • Modular design, allows for lower initial costs and future upgrades • Choice of DWDM(up to 16 channels) or CWDM(up to 8 channels) technologies. • Access protocols flexibility – allows for mixing of different speeds and protocols. • Transponders with software controllable access rate. • Redundant P.S. and CPU’s • 1+1 Redundancy on the trunk - optional • Integrated Optical Add/Drop ability • Integrated Optical Amplifier(EDFA) as an option – for longer distances transmission

  39. Thank You

More Related