TTC UPGRADE FOLLOW-UP Sophie Baron, Angel Monera Martinez LECC 2006 Sophie BARON, PH-ESS LECC 2006, VALENCIA

Analogue versus Digital First results Status Conclusion TTC upgrade principle Transmitter Crate Receiver Crate Analogue versus Digital First results Status Conclusion Sophie BARON, PH-ESS LECC 2006, VALENCIA

TTC UPGRADE [principle] RD12 system for TTC backbone obsolete Few spares Design not documented No 24/24 support Upgrade necessary Using up-to-date components Find a solution for 24/24 support (-> AB/RF piquet) condition: use the same Tx and Rx modules as the AB/RF group Tx Crate with AB/RF standard Tx modules Optical splitter Rx Crate Rx modules & a TTC specific adjustment module SR4 CCR Experiments Sophie BARON, PH-ESS LECC 2006, VALENCIA

Analogue versus Digital First results Status Conclusion TTC upgrade principle Transmitter Crate Receiver Crate Analogue versus Digital First results Status Conclusion Sophie BARON, PH-ESS LECC 2006, VALENCIA

TRANSMITTER CRATE [Overview] VME 6U RF-compliant crate (J2 not standard VME) Provided by AB/RF Installed in the SR4 (where the RF is generated) Controlled, supported and maintained by AB/RF Filled with transmitter VME modules used by the AB/RF group to transmit their own signals Optical components were already identified, but It turned out that the VME modules were not designed yet Design made by PH/ESS for the AB/RF group PH/ESS proposed to AB/RF a second version of these modules with cheaper components (which could fulfill the requirements of 70% of their equipment) One laser chip per signal to be transmitted 3 Bunch Clocks (ring1, ring2, reference) 2 Orbit signals (ring1, ring2) Optical Transmitter boards for BC and Orbit transmission to experiments 2 versions being currently studied Optical Transmitter boards for RF internal use Crate Controller Sophie BARON, PH-ESS LECC 2006, VALENCIA

TTC upgrade principle Transmitter Crate Receiver Crate Analog versus Digital First results Status Conclusion Sophie BARON, PH-ESS LECC 2006, VALENCIA

RECEIVER CRATE [Overview] 6U VME 64x crate Installed in each experiment (instead of the TTCmi) One receiver per signal to be transmitted 3 Bunch Clocks (ring1, ring2, reference) 2 Orbit signals (ring1, ring2) Receiver boards supported and maintained by AB/RF 2 different versions being studied now (one ‘Analog’ and one ‘Digital’) Other modules & equipment supported by the experiments, maintained by PH/ESS RF2TTC module Designed by PH/ESS Supported by the experiments Maintained by PH/ESS-TTC team Multiplexing and adjustment of the BC and Orbit signals AB/RF receiver modules Designed by PH/ESS Supported & maintained by AB/RF 2/3 Rx per VME module (depending on the versions) Optional Fanout Module Designed by PH/MIC Supported by the experiments Maintained by PH/ESS-TTC team Sophie BARON, PH-ESS LECC 2006, VALENCIA

RECEIVER CRATE [Crate Controller] ALICE: Standard VP315/317 from CCT ATLAS: Standard VP110 from CCT CMS: CAEN PCI-controller card A2818 + V2718 VME-PCI optical bridge LHCb: CAEN V1718 VME-USB bridge OR OR Sophie BARON, PH-ESS LECC 2006, VALENCIA

RECEIVER CRATE [RF_Rx – ‘Analogue’ version] Design done by PH/ESS (A. Monera) The corresponding Transmitter module has been designed by PH/ESS as well Specifications written by the AB/RF group Tx and Rx components selected by the AB/RF group Initially to transmit the LHC RF (400MHz continuous sinewave) 6U VME modules (VME 64x and VME 64 compatible) 2 receivers per module Internal registers monitoring the optical power levels Heat sink required (..) to keep the Miteq Rx and Tx at about 35 C Deg. EDA-1332 A. Monera Martinez See details in following section Sophie BARON, PH-ESS LECC 2006, VALENCIA

RECEIVER CRATE [RF_Rx – ‘Digital’ version] Proposed by PH/ESS to AB/RF to replace the Analogue version where a cheaper laser could do the job. Typically 400MHz or 40MHz clocks, Orbits, etc… If accepted by AB/RF, would be supported and maintained by them as well. Design done by PH/ESS (A. Monera) The corresponding Transmitter module has been designed by PH/ESS as well 6U VME (VME 64x and VME 64 compatible) 3 types of optical receivers according to various requirements Various types of receivers can be plugged with minor hardware adjustments Allows us to compare their performances in real conditions Internal registers Signal detect (R) Frequency detect for each channel (Read Only) Threshold level adjustment (R/W) Firmware very close to the Analogue version EDA-1382 A. Monera Martinez See details in following section Sophie BARON, PH-ESS LECC 2006, VALENCIA

RECEIVER CRATE [RF2TTC] Inputs 3 BC inputs (SMA or Lemo00) (RF signals, BC1, BC2, BCref) 2 Orbit inputs (RF signals, Orb1, Orb2) 1 BST input (optical) Outputs 4 ECL BC outputs (BC1, BC2, BCref, MainBC) AC coupled 4 NIM copies 3 ECL Orbit outputs (Orb1, Orb2, MainOrb) DC/AC coupled Synchronised respectively to BC1, BC2, MainBC 3 NIM copies Adjustments & Features Each BC input has: Threshold adjustment Multiplexing with internal source Fine delay QPLL Each Orbit input has: Fine delay for the synchronisation Multiplexing with internally generated orbit (adjustable period) Adjustable length and polarity Coarse delay adjustment (in 25ns steps) Fine delay of the output EDA-1357 S. Baron Sophie BARON, PH-ESS LECC 2006, VALENCIA

RECEIVER CRATE [BC & Orbit fanout] Dual 1:18 ECL fanout 4 NIM outputs per input (ALICE requirement) 1 status led per input (presence of clock / orbit). Maximum density The 2 halves can be daisy chained. EDA-1240 C. Sigaud Sophie BARON, PH-ESS LECC 2006, VALENCIA

Analogue versus Digital First results Status Conclusion TTC upgrade principle Transmitter Crate Receiver Crate Analogue versus Digital First results Status Conclusion Sophie BARON, PH-ESS LECC 2006, VALENCIA

ANALOGUE VERSUS DIGITAL [Modules] 1kCHF .8kCHF RF_Tx_D EDMS Ref: EDA-01380 EDMS Ref: EDA-01382 or Photon PT5343-300MHz 250 $ - Obsolete OCP STX03-300MHz 350 $ OCP STX24-1.5GHz 600 $ Truelight TRR-1B43-00-150MHz 8$ OCP SRX03-300MHz 200 $ OCP SRX24-1.5GHz 300 $ ANALOGUE SET Designed for RF transmission (sinewave) Phase noise <5ps (pk-pk!). (more info) 2 Optical links per module Optical power budget 10-15dB DIGITAL SET 40MHz & 5ns pulses transmission Jitter <30ps rms 3 Optical links per module Optical power Budget 25dB Various Tx and Rx can be installed 5kCHF RF_Tx_A EDMS Ref: EDA-01331 4kCHF RF_Rx_A EDMS Ref: EDA-01332 Sophie BARON, PH-ESS LECC 2006, VALENCIA

ANALOG VERSUS DIGITAL [Systems] SR4 5kCHF Rx Tx X6 = 34k 1kCHF .8kCHF 1.2 kCHF per link SR4 EXP CCR Tx 4kCHF CCR Rx Tx X6 = 204k 7 kCHF per link Rx Rx Rx Rx Rx EXP Sophie BARON, PH-ESS LECC 2006, VALENCIA

ANALOGUE VERSUS DIGITAL [Production] ANALOGUE SET Users: AB/RF for continuous sinewave transmission Quantities: about 15 links DIGITAL SET Users: TTC (BC & Orbit) & AB/RF & AB/BT with: OCP STX03 TRR-1B43 AB/RF for 400MHz with: OCP STX24 OCP SRX24 Quantities: about 80 links Awaiting for AB/RF final agreement Sophie BARON, PH-ESS LECC 2006, VALENCIA

Analogue versus Digital First results Status Conclusion TTC upgrade principle Transmitter Crate Receiver Crate Analogue versus Digital First results Status Conclusion Sophie BARON, PH-ESS LECC 2006, VALENCIA

FIRST RESULTS [From CCR to Build.4 in Meyrin] RD12 TX TTCmi TTC RD12 (LHCrx) 40.078MHz Cy2cy jitter=29ps rms Digital module (TRR receiver) Cy2cy jitter=27ps rms Skew jitter / Rd12 = 36 ps rms Analog module* Cy2cy jitter=18ps rms Skew jitter / Rd12 = 35 ps rms RX CRATE (Analog and Digital modules) CCR MEYRIN TX CRATE *: for the analog module, the setup is: Tx -> Rx -> Tx -> Rx To match the real conditions, where a transceiver at the CCR will be required Sophie BARON, PH-ESS LECC 2006, VALENCIA

FIRST RESULTS [From CCR to North Area - setup] RD12 TX scintillators Recovered Clock & Orbit 25ns structured test beam TTCmi Photo Multipliers & coincidence TX CRATE RX CRATE Trigger NORTH AREA CMS facility LECROY SDA6000 XXL Digital Rx Clock CCR Analog Rx Clock 25ns test beam Scope triggered about 90 times per spill Delays measured between the trigger falling edge and the closest rising edge of the 3 different clocks Thanks to Jan Troska for having made this setup available Sophie BARON, PH-ESS LECC 2006, VALENCIA

FIRST RESULTS [From CCR to North Area - results] Analog Clock TTCrd12 Clock Digital Clock => Histogram shape given by the high beam jitter vs the clock Sophie BARON, PH-ESS LECC 2006, VALENCIA

Analogue versus Digital First results Status Conclusion TTC upgrade principle Transmitter Crate Receiver Crate Analogue versus Digital First results Status Conclusion Sophie BARON, PH-ESS LECC 2006, VALENCIA

STATUS HARDWARE INFRASTRUCTURE SOFTWARE EQUIPMENT STATUS Crates AVAILABLE Controllers RF2TTC 1 Proto just arrived at CERN RF_Tx_A and RF_Rx_A 5 Protos of each being now evaluated by PH/ESS, AB/RF, AB/BT RF_Tx_D and RF_Rx_D Fanout Protos-V1 tested, Proto-V2 at CERN in the following weeks EQUIPMENT STATUS Fibers RESERVED and installed. The patching campaign will begin in November Splitters AVAILABLE for the Analogue version. To be ordered for the digital one. STATUS Test functions WRITTEN (M. JOOS) API UNDER SPECIFICATION (M. JOOS in collaboration with the experiments) Sophie BARON, PH-ESS LECC 2006, VALENCIA

TTC upgrade principle Transmitter Crate Receiver Crate Analog versus Digital First results Status Conclusion Sophie BARON, PH-ESS LECC 2006, VALENCIA

CONCLUSION Transmission Schemes RF2TTC prototype just arrived at CERN Analogue version validated (at, say, 90%) 5 prototype boards available (= 10 links) Digital version in course of validation 5 prototype boards available (= up to 30 links) Extended tests to be done in the TTC lab Being tested by all the AB potential users right now The AB/RF group needs to give its agreement to have these modules as standard modules Mandatory, as they will do the on-call support RF2TTC prototype just arrived at CERN System test to begin next week, with the following criteria Jitter test System stability and reliability Characterization (temperature, optical power range,..) Production Readiness Review to be done in November Can be preceded by tests done by experiments if they request it Production to begin only after a green light from AB/RF group and experiments 3 RF2TTC modules per experiment + 3 at the TTC lab + PCB and components for 10 more spares 3 RF_Rx (in the digital case) per experiment + 3 in the TTC lab, spares (pool of spares maintained by the AB/RF, + extra batch of critical components) Sophie BARON, PH-ESS LECC 2006, VALENCIA