The Swiss Army Knife SLTE Alice Shelton, Michele Barezzani - - PowerPoint PPT Presentation

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The “Swiss Army Knife” SLTE

Alice Shelton, Michele Barezzani

Alcatel-Lucent Submarine Networks

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The “Swiss Army Knife” SLTE - Introduction

Robust, flexible and dependable tool, ready for any eventuality A difficult mission A challenging environment An unpredictable future

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Role of SLTE

• Multi-purpose
• Reliable
• Robust
• Easy-to-use

 The Ideal SLTE The “Swiss Army Knife” SLTE - Introduction

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The Ideal SLTE – 4 key attributes

Reliability Eco-friendly Ease of Use

SLTE SLTE

Flexibility

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Flexibility: A blade for any purpose

• Flexibility of Configuration
• Transoceanic, regional or unrepeatered systems
• Line Terminal, OADM, Dry Repeater
• Flexibility of Capacity
• Channel spacing, bit rate
• Flexibility for the Customer
• Intrinsic traffic flexibility
• Selectable plug and play modules

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Line Terminal

• All channels fully multiplexed and demultiplexed
• Two level multiplexing scheme -> 400GHz bands
• A highly scalable and flexible design

Flexibility of Configuration

Transmit side

Receive side Optical Line

TRANSPONDER BAND MUX

Loading Channel BAND DEMUX CONCENTRATOR

TRANSPONDER CONCENTRATOR

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Back-back Terminal

• Can be used to concatenate submarine segments
• Full electrical regeneration for each pass-through channel

Flexibility of Configuration

Back-to-back Drop Add Intermediate station Back-back Terminal

A A B B

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Optical Add-Drop Mux (OADM) SLTE

• Wavelength Pass Through (WPT) topology
• Identical connectivity between stations as OADM BU

Flexibility of Configuration

Drop Add Intermediate station OADM SLTE

A B

Wavelengt h Pass Through

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OADM SLTE

• Cost savings reducing the number of transponders
• Planning flexibility:

Traffic sharing not fixed at initial system construction

Flexibility of Configuration

Transmit side Receive side

Transmit side Receive side

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Flexibility of Capacity

• Modular architecture allows:
• With additional flexibility:
• Mix 10Gb/s channels with different spacing & format
• Mix 10Gb/s and 40Gb/s channels in the same SLTE
• 100Gb/s upgradeability

0.84Tb/ s

• Up to 84 x 10Gb/s channels (50 GHz spacing)

1.28Tb/ s

• Up to 128 x 10Gb/s channels (33 GHz spacing)

1.60Tb/ s

• Up to 160 x 10Gb/s channels (25 GHz spacing)

3.36Tb/ s

• Up to 84 x 40Gb/s channels (50 GHz spacing)

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Flexibility for the Customer

• Single type 10Gb/s transponder for multiple client signals

– 9.95Gb/s SDH STM-64 / SONET OC-192 UNI interface – 10G WAN or LAN PHY Ethernet interface – ITU-T G.709 NNI 10.7Gb/s interface

• Concatenation of lower bit rate in concentrator blade packs

– 8 x 1Gb Ethernet LAN concentrator – 4 x 2.5Gb/s SDH UNI or G.709 NNI concentrator

• Pluggable optical interfaces for different reaches

– XFP at 10Gb/s, SFP at 2.5Gb/s and GbE

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Reliability

• Wider concept than Digital Line Segment availability

– Equipment redundancy and 1+N protection schemes

• Robustness to environmental conditions

– ETS 300 019-1-3 Class 3.2 (-5˚C to +45˚C with RH ≥ 95%)

• Resistance to security threats

– Open interfaces on SLTE should be protected by an encryption technique eg. Secure Socket Layer (SSL) to enable secure connection to other computer systems – SSL provides:

• Privacy
• Integrity
• Authentication

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Ease of Use

• Safety first

– IEC 60950-1 (Ed.2005) Safety of Information Technology Equipment

• Installation - Automatic Commissioning Tools

– Minimum on-site intervention – SLTE configuration built off-line

• Cabling, slot positions, optical power settings, alarm thresholds, alarm

profile management

– Downloaded remotely on installed SLTE

• Verify correct installation (cabling, slot position etc)
• Upload specific pack information
• Highlight discrepancies

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• Commissioning - Local or remote “Zero Installation Craft”

Terminals (ZIC)

• Any PC with web browser without specific SW installation
• Connected locally or remotely, only dependant on LAN/IP

connectivity

Ease of Use

• 1. Log onto ZIC web server using

PC web browser to access a set of ZIC Graphical User Interface (GUI) pages

• 2. Through ZIC GUI send
• peration requests to the SLTE
• 3. SLTE returns responses to

display on web browser

DWM Web Server WDM SLTE Response IP

HTTP URL

Operation Tasks/Web Request DWM DWM Web Server WDM SLTE Response IP

HTTP URL

Operation Tasks/Web Request

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Ease of Use

• Intuitive, drop-down menus

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Eco-Friendly: An investment for our future

• European Union Directives RoHS and WEEE

– Design of eco-friendly SLTE and disposal of packaging and parts at end-of-life

• Eco-friendly demands:

– Equipment size reduction – Power consumption reduction

• ECO Declaration (ECMA-370) specifies measurement of

‘eco-friendliness’

– Power Consumption, Noise emission, Hazardous Substances, Packaging, EOL Management Information

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The Ideal SLTE - Conclusion

• Four key attributes
• Ideal SLTE as a tool for the submarine network operator
• One single, compact, adaptable tool dependable in any environment,

ready for any eventuality

• The “Swiss Army Knife” SLTE

SLTE SLTE

2010

Pacifico Convention Plaza Yokohama & InterContinental The Grand Yokohama 11 ~ 14 May 2010 www.suboptic.org

enabling the next generation of networks & services

The 7th International Conference & Convention

• n Undersea Telecommunications

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