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An upgrade proposal for off-detector TTC. TTC-PON. From TTC to PON The TTC-PON Project TTC-PON applied to experiments. OUTLINE. From TTC to PON The TTC-PON Project TTC-PON applied to experiments. OUTLINE. TTC system. Timing, Trigger and Control System Bringing :

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Ttc pon

An upgrade proposal for off-detector TTC

TTC-PON

[email protected] workshop - S. Baron


From ttc to pon the ttc pon project ttc pon applied to experiments

From TTC to PON

The TTC-PON Project

TTC-PON applied to experiments

OUTLINE

[email protected] workshop - S. Baron


From ttc to pon the ttc pon project ttc pon applied to experiments1

From TTC to PON

The TTC-PON Project

TTC-PON applied to experiments

OUTLINE

[email protected] workshop - S. Baron


Ttc system

TTC system

[email protected] workshop - S. Baron

  • Timing, Trigger and Control System

  • Bringing:

    • LHC bunchclock (BC)

    • Trigger signals

    • Control data

    • Down to each part of the detector withlow and fixedlatency and lowjitter LHC recoveredclock (10ps rms)

  • Common modules to all experiments

  • Designedat the end of the 90’s


Ttc system1

TTC SYSTEM

[email protected] workshop - S. Baron

  • Encoding:

    • 2 channels

    • A: low & fixed latency dedicated to triggers

      • Not encoded. 1=trigger, 0=no trigger

    • B: everything else

      • Synchronous event and bunch counter resets

      • Trigger types

      • Commands

      • Forward Error Correction using Hamming code

    • Bi-Phase-Mark, Time Domain Multiplexed

      • 1 bunch clock (25ns) carries 1 bit of A channel and 1 bit of B channel

      • Transition=1, no transition=0

      • Line rate of 160 Mbps


Ttc system2

TTC system

LTU

TTCvi/ex

10

1

1

16/32

DAQ

DAQ

FE Controller

FE driver

FE driver

TTCrx

TTCrx

TTCrx

Counting room

Detector

TTCrx

TTCrx

TTCrx

Det.

Module

Det.

Module

Det.

Module

Det.

Module

Det.

Module

[email protected] workshop - S. Baron


Ttc system candidate for versatile link gbt

TTC system – CANDIDATE FOR VERSATILE LINK & GBT

LTU

TTCvi/ex

10

1

1

16/32

DAQ

DAQ

FE Controller

FE driver

FE driver

TTCrx

TTCrx

TTCrx

Counting room

Detector

TTCrx

TTCrx

TTCrx

Det.

Module

Det.

Module

Det.

Module

Det.

Module

Det.

Module

[email protected] workshop - S. Baron


Ttc system candidate for pon

TTC system – CANDIDATE FOR PON

LTU

TTCvi/ex

10

1

1

16/32

FE Controller

TTCrx

FE driver

TTCrx

DAQ

FE driver

TTCrx

DAQ

Counting room

Detector

TTCrx

TTCrx

TTCrx

Det.

Module

Det.

Module

Det.

Module

Det.

Module

Det.

Module

[email protected] workshop - S. Baron


Ttc system limitations

TTC system limitations

[email protected] workshop - S. Baron

  • Aging, components getting obsolete

  • Limited trigger rate (11 consecutive triggers max)

  • No protection against error transmission on triggers (no encoding on A channel)

  • No bidirectionnality

    • No feedback on control

    • Required a separate network for Busy/Throttle system

  • Limited bandwidth

    • Trigger types could not be synchronous to triggers

    • Commands

  • Too LHC-specific (frequency range limited to [40.077-40.081] MHz)


Ttc system upgrade requirement

TTC system – upgrade requirement

[email protected] workshop - S. Baron

Bi-directionality

Increased bandwidth

Common system

Scalability

Partitioning flexibility

Better performances than TTC for clock recovery

Low and fixed latency

Backward compatibility with legacy TTC system


Ttc system upgrade requirement1

TTC system – upgrade requirement

P assive

O ptical

N etwork

[email protected] workshop - S. Baron

Bi-directionality

Increased bandwidth

Common system

Scalability

Partitioning flexibility

Better performances than TTC for clockrecovery

Low and fixedlatency

Backward compatibility with legacy TTC system


What is a pon

What is a PON?

  • Passive Optical Network

  • Major topology of growing Access Network Market (FTTx)

  • Point-to-MultiPoint(P2M)

  • One single fibrein charge of both downstream and upstream transmissions (using wavelength multiplexing technique)

FTTH

ONU1

FTTC

ONU2

OLT

ONU3

FTTB

[email protected] workshop - S. Baron


What is a pon1

Whatis a PON?

Example of 1G-(E)PON

  • Downstream: 1490nm @ 1.25 Gbps

  • Upstream: 1310nm @ 1.25 Gbps

B

B

1

3

1

1

1

1

1

2

2

2

2

B

B

B

1

1

1

1

1

3

3

3

1

1

1

3

1

FTTH

B

ONU1

1490nm

FTTC

B

2

ONU2

OLT

1

1

2

2

3

3

2

2

2

1

2

1

3

3

3

3

1

1

1310nm

ONU3

1

1

2

2

2

1

3

3

3

FTTB

[email protected] workshop - S. Baron


What is a pon2

Whatis a PON?

Example of 1G-(E)PON

  • Downstream: 1490nm @ 1.25 Gbps

  • Upstream: 1310nm @ 1.25 Gbps

B

B

1

3

1

1

1

1

1

2

2

2

2

3

B

B

B

1

1

1

1

1

3

3

3

3

1

1

1

3

1

FTTH

B

ONU1

1490nm

FTTC

B

2

ONU2

OLT

1

1

2

2

3

3

2

2

2

1

2

1

3

3

3

3

1

1

1310nm

ONU3

1

1

2

2

2

1

3

3

3

FTTB

[email protected] workshop - S. Baron


From ttc to pon the ttc pon project ttc pon applied to experiments2

From TTC to PON

The TTC-PON Project

TTC-PON applied to experiments

OUTLINE

[email protected] workshop - S. Baron


Ttc pon proof of concept 2010

TTC-PON proof of concept [2010]

ONU1

OLT

ONU1

1490nm, 1.6Gbps

1

ONU2

OLT

2

1310nm, 800Mbps

ONU2

1

2

  • Studyconducted by I. Papakonstantinou (AceoleFellow, nowat UCL), CsabaSoos (CERN/PH/ESE) and the Opto Team of PH/ESE/BE.

  • And documented :

  • Passive Optical Networks in Particle Physics Experiments, IoannisPapakonstantinou, 24th November 2009, PH-ESE Seminar

  • A Fully Bidirectional Optical Network with Latency Monitoring Capability for the Distribution of Timing-Trigger and Control Signals in High-Energy Physics Experiments,IoannisPapakonstantinou et al., IEEE TNS, Aug. 2011.

1

1

1

1

B

B

B

B

2

2

2

B

B

B

B

K

K

K

1

1

1

1

B

B

B

B

2

2

2

B

B

B

B

K

K

K

K

[email protected] workshop - S. Baron


Ttc pon proof of concept 20101

TTC-PON proof of concept [2010]

[email protected] workshop - S. Baron


Ttc pon proof of concept 20102

TTC-PON proof of concept [2010]

Downstream Protocol

TTC individualaddressing frame length = 1050ns)

[email protected] workshop - S. Baron

  • Raw rate 1.6Gbit/s

  • Arbitrary protocol for 64 ONUs

  • Synchronous transmission of super-frames with a period of 1625ns = 65*25ns at 1.6Gbit/s

  • 8b/10b encoding (1Field = 1 symbol)

  • 590.8 Mb/s broadcast only

  • 9.23 Mb/s per ONU


Ttc pon proof of concept 20103

TTC-PON proof of concept [2010]

Upstream Protocol

~300ns for highdynamic range systems (20dB)

50ns for low

dynamic range (<6dB)

[email protected] workshop - S. Baron

  • Channel arbitration at the OLT (based on a simple round-robin scheme)

  • Slave (ONU) N1 receives an R/F character with its address and switches its laser ON

  • OLT deserializer works in burst mode

  • Inter Frame Gaps between successive emissions allows OLT receiver to adapt between bursts (dynamic threshold)

  • Long sequence of idle bytes for CDR & frame alignment

  • 4 bytes of payload

  • Total BW 800Mb/s

  • Latency not fixed but bonded


Ttc pon proof of concept 20104

TTC-PON proof of concept [2010]

Compared Performance wrt TTC legacy

[email protected] workshop - S. Baron


Ttc pon proof of concept 20105

TTC-PON proof of concept [2010]

Compared Performance wrt TTC legacy

Preliminaryresultsbased on the simple proof of concept

[email protected] workshop - S. Baron


Ttc pon project launched

TTC-PON Project – LAUNCHED!

[email protected] workshop - S. Baron

  • First prototype verypromising

  • Stillspace for improvement on downstream trigger latencyandupstreambusy transmission

  • Manyideasto optimizethisearly proof-of-concept

    • busylatencyoptimization: improvingprotocolupstream

    • TTClegacy & PON coexistence: using 10G-1G PON overlay products

    • Trigger latency: improve the serdeslogic

    • Othermultiplexing techniques (Wavelengthmultiplexing (WDM), Orthogonal Codes (CDMA)) to beinvestigated in partnershipwithUCLUniversityCollegeLondon

  • A Doctoral studentstarted in October on thisproject


Ttc legacy pon coexistence idea

TTC legacy & PON coexistence Idea

TTC legacy & PON coexistence using

Dual rate OLTs (1G/10G)

Courtesy of D. M. Kolotouros

[email protected] workshop - S. Baron


Ttc pon project roadmap

TTC-PON Project Roadmap

2012

2013

2014

2015

2016

2017

2018

2019

2020

LS1

  • TDMA investigations

  • (usingevaluation kits)

  • Specificationwithexperiments

Propose solutions to experiments@ TWEPP15

Present TDMA-based prototype @ TWEPP14

Prototyping, qualification and

commissionning of a demonstrator

within CMS TTC upgrade (FMC based)

LS2

Investigation on other

multiplexingschemeswith UCL (CDMA, WDM)

Prototyping, pre-production

[email protected] workshop - S. Baron


From ttc to pon the ttc pon project ttc pon applied to experiments3

From TTC to PON

The TTC-PON Project

TTC-PON applied to experiments

OUTLINE

[email protected] workshop - S. Baron


From generic ttc

From[generic] TTC

LTU

TTCvi/ex

10

1

FE Controller

TTCrx

FE driver

TTCrx

DAQ

FE driver

TTCrx

DAQ

Counting room

Detector

TTCrx

TTCrx

TTCrx

Det.

Module

Det.

Module

Det.

Module

Det.

Module

Det.

Module

[email protected] workshop - S. Baron


To generic ttc pon

To [generic] TTC-PON

LTU

TTC-PON

TTC-PON

TTC legacy

FE Controller

ONU

FE driver

ONU

DAQ

FE driver

ONU

DAQ

Counting room

Detector

TTCrx

TTCrx

TTCrx

Det.

Module

Det.

Module

Det.

Module

Det.

Module

Det.

Module

[email protected] workshop - S. Baron


Example what pon could bring to atlas

Example: What PON couldbring to ATLAS

CTP

PIX

TRT

SCT

HCAL

FCAL

TCAL

LARG

MDT

RPC

TGC

CSC

FWD

BSY

LTP

TTCvi

TTCex

BSY

LTP

TTCvi

TTCex

BSY

LTP

TTCvi

TTCex

BSY

BSY

BSY

BSY

BSY

LTP

LTP

LTP

LTP

LTP

TTCvi

TTCvi

TTCvi

TTCvi

TTCvi

TTCex

TTCex

TTCex

TTCex

TTCex

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

TIM

TIM

TIM

TIM

FE

TIM

FE

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TBM

TIM

TIM

TIM

TIM

TIM

FE

TIM

TIM

TIM

TIM

ROD

FE

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

FE

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

[email protected] workshop - S. Baron


Example what pon could bring to atlas1

Example: What PON couldbring to ATLAS

CTP

PIX

TRT

SCT

HCAL

FCAL

TCAL

LARG

MDT

RPC

TGC

CSC

FWD

BSY

LTP

TTCvi

TTCex

BSY

LTP

TTCvi

TTCex

BSY

LTP

TTCvi

TTCex

BSY

BSY

BSY

BSY

BSY

LTP

LTP

LTP

LTP

LTP

TTCvi

TTCvi

TTCvi

TTCvi

TTCvi

TTCex

TTCex

TTCex

TTCex

TTCex

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

TIM

TIM

TIM

TIM

FE

TIM

FE

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TBM

TIM

TIM

TIM

TIM

TIM

FE

TIM

TIM

TIM

TIM

ROD

FE

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

FE

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

[email protected] workshop - S. Baron


Ttc pon

This …

CTP

PIX

TRT

SCT

HCAL

FCAL

TCAL

LARG

MDT

RPC

TGC

CSC

FWD

BSY

LTP

TTCvi

TTCex

BSY

LTP

TTCvi

TTCex

BSY

LTP

TTCvi

TTCex

LTP

LTP

OLT

OLT

TTC-PON link

BSY

BSY

BSY

LTP

LTP

LTP

TTCvi

TTCvi

TTCvi

TTCex

TTCex

TTCex

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

GBT link

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

ATLAS CTP-LTP link

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

GBT

TIM

TBM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

FE

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

FE

TIM

TIM

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

FE

ROD

ROD

ROD

ROD

GBT

FE

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

GBT

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

ROD

GBT

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

GBT

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

[email protected] workshop - S. Baron


Or this

Or this …

CTP

OLT OLTOLTOLTOLTOLTOLTOLTOLTOLTOLTOLT

PIX

TRT

SCT

HCAL

FCAL

TCAL

LARG

MDT

RPC

TGC

CSC

FWD

Splitter

Splitter

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

GBT

TIM

TIM

TIM

TIM

TIM

FE

TIM

TIM

FE

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

FE

TIM

TIM

TBM

TIM

TIM

TIM

ROD

ROD

ROD

ROD

GBT

FE

ROD

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

ROD

FE

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

GBT

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

GBT

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

GBT

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

[email protected] workshop - S. Baron


Or even this

Or eventhis …

CTP

OLT OLTOLTOLTOLTOLTOLTOLT

PIX+

TRT+

SCT

HCAL+

FCAL+

TCAL

LARG

MDT

RPC

TGC

CSC

FWD

Splitter

Splitter

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TTCoc

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

ROD

TIM

ROD

GBT

Reconfigurable soft

partitions made possible

by a high split ratio and

an adequateprotocol

TIM

TBM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

TIM

FE

TIM

TIM

TIM

FE

TIM

TIM

TIM

FE

TIM

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

GBT

ROD

FE

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

GBT

ROD

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

ROD

FE

ROD

FE

ROD

ROD

ROD

ROD

ROD

FE

ROD

ROD

ROD

ROD

ROD

ROD

ROD

GBT

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

GBT

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

FE

[email protected] workshop - S. Baron


Conclusion

CONCLUSION

[email protected] workshop - S. Baron


To conclude

To Conclude …

[email protected] workshop - S. Baron

  • The TTC [off detector] needs an upgrade

  • TTC-PON will propose solutions for LS2

    • We are currentlyinvestigatingseveral topologies

  • PON is an ideal candidate

    • Matches verywellourneeds

    • Opens doors for software partitionning

    • Garanties availableCOTS for a very long timescale


This the moment to share your needs

This the moment to shareyourneeds

[email protected] workshop - S. Baron

  • Please contact [email protected] if

    • You want more information

    • You wouldlike to know how TTC-PON could fit in your system

    • You want to give us feedback on requirements, limitations, constraints for the TTC-PON project

  • and visitourproject web site:

    http://cern.ch/TTC-PON


Thank you

THANK YOU

[email protected] workshop - S. Baron


Spare slides

SPARE SLIDES

[email protected] workshop - S. Baron


Pon and radiations

PON and Radiations

[email protected] workshop - S. Baron

Typical SFP (2 fibers):

  • TID < 1 krad = works fine

  • TID ~10 krad = micro controllerfails (for all types of commercial SFPs, test made by Versatile Link communitythisyear)

    ONU SFP @ 100krad:

  • Impossible to use commercial components

  • Need of a custom design with for example:

    • A rad-tol FPGA for the control (especiallyburst mode)

    • A versatile transceiver module (designed by ESE/BE)

    • A 2:1 splitter to match IN and OUT fibersinto 1 single fibre

      OLT XFP @ xxx rad (Trigger zone)

  • Need to bequalified


Ttc pon 2010 demonstrator performance

TTC-PON 2010 Demonstrator Performance

Current TTC and PON-TTC Downstream latency characteristics

PON-TTC Jitter characteristics

Min Upstream Frame Duration Breakdown Analysis

[email protected] workshop - S. Baron


Ttc pon proof of concept 20106

TTC-PON proof of concept (2010)

[email protected] workshop - S. Baron


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