Fabrication & Assembly of Fabrication & Assembly of Opto-Rx12Opto-Rx12 Modules for Modules for

CMS-PreshowerCMS-Preshower

S. K. LalwaniS. K. Lalwani

Electronics DivisionElectronics DivisionBhabha Atomic Research CentreBhabha Atomic Research Centre

Mumbai – 400 085Mumbai – 400 085

Preshower in CMS Structure

~2.49m

MB TYPE2

MB TYPE3

MB TYPE1

MB TYPE0K Chip

Total 124 x 4 = 496 Mother boards

Preshower Disc ( 1 of 4 )

Preshower Readout & Control Architecture

ES-DCC

Opt

ical

Rec

eive

rs

Spy Memory

Data Reduction

Algorythms,Formatting

Optical Readout Path

FEC Module

Opt

oele

ctro

nics

Link Controller

processor

CLK & T1logic

TTCrx

TTCrx

TTCvimodule

Front End Readout ASICs

Front End Control ASICs

Control Path

Clk LV1I2C

DCUIV

I2CCCUCCUCCUCCUCCUCCU

Slow Control&

Fast CommandsRe

SubdetectorEvent Builder

K chipK chip

K chipK chip

K chipK chip

K chipK chipPACE

ADC

FastTiming

Slow Control

System Motherboard

GOH

DOH(Digital Opto-Hybrid)

(Gigabit Opto-Hybrid)

( S-Link)

Role of Opto-Rx12 Module

4288

496

1208@ 800Mbps

To Local DAQ

Role of Opto-RX12Role of Opto-RX12

• Data Rate : 1208 Optical data lines @ 800Mbps each = 1TbpsData Rate : 1208 Optical data lines @ 800Mbps each = 1Tbps

• Only 2% occupancy (useful data)Only 2% occupancy (useful data)

• Opto-Rx12 Module :Opto-Rx12 Module :

Receives data from 12 optical linesReceives data from 12 optical lines Implements Data Reduction Algorythms in an FPGAImplements Data Reduction Algorythms in an FPGA

• Several Opto-Rx12 modules would be plugged into a VME-Several Opto-Rx12 modules would be plugged into a VME-based readout system, which will send the reduced data based readout system, which will send the reduced data (Events) to CMS DAQ. (Events) to CMS DAQ.

Opto-Rx12 Revision 1Opto-Rx12 Revision 1

FPGA with embedded De-serializers (Altera 1SGX40GF1020)

12 channel Optical Receiver (NGK-POR10M12SFP)

Connector for 12 Fibre Ribbon

115mm75mm

5 PMC connectors (280 bit I/O bus)

Opto-Rx12 Evaluation SetupOpto-Rx12 Evaluation Setup

Pattern Generator- Generates 12 optical serial streams

Host Board- Provides space for Opto-Rx12 plug-in- USB interface

Opto-Rx12 Evaluation SetupOpto-Rx12 Evaluation Setup

ECIL’s Quotation to CERNECIL’s Quotation to CERN

► Unit Price : 1100 CHF for Quantity of 150 Nos.Unit Price : 1100 CHF for Quantity of 150 Nos.

► Includes:Includes: Fabrication, Assembly and Testing of Opto-Rx12Fabrication, Assembly and Testing of Opto-Rx12 Cost of Components except Optical Receiver (NGK’s Cost of Components except Optical Receiver (NGK’s

POR10M12SFP)POR10M12SFP)

► CERN must provide:CERN must provide: Optical Receiver ChipsOptical Receiver Chips Complete Test Setup including boards (2 sets), firmware, Complete Test Setup including boards (2 sets), firmware,

software and documentationsoftware and documentation

ChallangesChallanges

► 14 layer PCB14 layer PCB► BGA soldering ( > 1000 balls)BGA soldering ( > 1000 balls)► Testing/ debugging (?)Testing/ debugging (?)

Current Status: Opto-Rx12 Module Current Status: Opto-Rx12 Module Revision 3Revision 3

Bigger FPGA

(Altera EP2SGX60EF1152C5N)

Changes in Changes in OptoRx Rev 3OptoRx Rev 3

Linear Regulators

Linear Regulator replaced by Switching Regulator on an adaptor PCB

Opto-Rx12 Test Setup Opto-Rx12 Test Setup (Final ?)(Final ?)

Host Board

Opto-Tx8Module

Opto-Rx12 Rev. 3Optical

Splitter8 12

USB PortLEDs

Switches

Many ThanksMany Thanks

OptoRx Module Revision 1OptoRx Module Revision 1