Abstract

A new generation FPGA-based Timing-Trigger and Control (TTC) system based on emerging Passive Optical Network (PON) technology is being proposed to replace the existing off-detector TTC system used by the LHC experiments. High split ratio, dynamic software partitioning, low and deterministic latency, as well as low jitter are required. Exploiting the latest available technologies allows delivering higher capacity together with bidirectionality, a feature absent from the legacy TTC system. This article focuses on the features and capabilities of the latest TTC-PON prototype based on 10G-PON FTTH components along with some metrics characterizing its performance.

Highlights

  • A new generation FPGA-based Timing-Trigger and Control (TTC) system based on emerging Passive Optical Network (PON) technology is being proposed to replace the existing offdetector TTC system used by the LHC experiments

  • It consists of TTCvi and TTCex cards which communicate with a number of custom receiver components (TTCrx), via a passive optical tree

  • The TTCex receives information from two channels activated by the trigger control system(Central/Local Trigger and TTCvi); Channel A contains the level 1 trigger accept (L1A) decision and channel B carries general purpose commands for the synchronization and calibration of the detector partitions

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Summary

A TTC upgrade proposal using bidirectional 10G-PON FTTH technology

This content has been downloaded from IOPscience. Please scroll down to see the full text. 2015 JINST 10 C04001 (http://iopscience.iop.org/1748-0221/10/04/C04001) View the table of contents for this issue, or go to the journal homepage for more. Download details: IP Address: 131.169.4.70 This content was downloaded on 11/01/2016 at 22:37 Please note that terms and conditions apply. PUBLISHED BY IOP PUBLISHING FOR SISSA MEDIALAB RECEIVED: November 14, 2014 REVISED: December 17, 2014 ACCEPTED: January 5, 2015 PUBLISHED: April 1, 2015. TOPICAL WORKSHOP ON ELECTRONICS FOR PARTICLE PHYSICS 2014, 22–26 SEPTEMBER 2014, AIX EN PROVENCE, FRANCE

Current TTC
The 10G TTC-PON demonstrator
Downstream
Payload
Performance
Findings
Summary

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