Restoration of Restoration of underground networking underground networking during LHC constructionduring LHC construction

Luit de Jonge/SL-CO

OutlineOutline

Which services do we have todayWhich services do we have today LHC civil engineering sites in the LHC civil engineering sites in the

undergroundunderground Which services will we looseWhich services will we loose Rerouting of services via the surfaceRerouting of services via the surface General services restoration planningGeneral services restoration planning Which services do we need at this time???Which services do we need at this time???

Which services do we have Which services do we have todaytoday

FDDI-Ethernet – surface– underground

TDM (Time Division Multiplexing)– surface– underground

Optical Fibre Network– surface– underground

LHC civil engineering LHC civil engineering sitessites

in the undergroundin the underground

Which services will we Which services will we looseloose

during LHC constructionduring LHC construction

Basically all of the services in the underground

Rerouting of services via Rerouting of services via the surfacethe surface

Optical fibres to P5 and P7SDH (Synchronous Digital Hierarchy)

installations at PCR, P5 and P7FDDI to P5 and P7 connected via the

surface optical fibresVideo connections via the same fibres

LdJ, 3 July 1998.

LEP/LHC Optical Fibres (PCR-P5, P6, P7)

P5

P7

P6

PCR

36mm+72sm 5 Km

36mm+72sm 1.5 Km

24mm+48sm 2.2 Km

24mm+48sm 3.6 Km

36mm+72sm 1.1 Km

3 way splice

S5

S4S3

S2

S1

Fig.3

P4

P33

P3

P2

P1

P8

PCR –P5 12MM+24SMPCR-P6 12MM+24SMPCR-P7 12MM+24SMP5-P6 12MM+24SMP6-P7 12MM+24SM

LINKS

LdJ, November 1998.

SDH Pilot Project (PCR-P5-P7-PCR)

tributaries

P5

P7

P6

PCR

ADM

ADM

P4

P33

P32

P2

P1

P8

STM-4622 Mb/s

ADM

SYSTEMMANAGEMENT

STM-4622 Mb/s

STM-4622 Mb/s

STM-4622 Mb/s

STM-4622 Mb/s

STM-4622 Mb/s

Luit de Jonge, 4/5/99.

513

SR1PCR

PS

SPS

LHC

376

TCR

SDH nodeDigital tributaries: 2 Mb/s, 34 Mb/s, 140 Mb/sSTM-n: STM-1 (synchronous transport modules)

STM-4STM-16

General services General services restoration planningrestoration planning

8-1 15 1-2 25 2-3 33 3-4 4 4-5 55 5-6 65 6-7 76 7-8 85 8-12000 10

1112

2001 010203040506070809101112

2002 010203040506070809101112

2003 010203040506070809101112

Sectoryear month

LEP Dismantling

and

LHC Civil Engineering

LHC General Services Required

Which services do we Which services do we need at this time???need at this time???

Ethernet connections, but which technology?

ATM connections?SDH connections for point to point links

and transport of IP traffic?FAT optical fibre cables all around the

tunnel?Secure power supply! (220Vac/-

48Vdc)

Concluding Concluding remarkremark

many ?many ??????????????? but but we we will will succeed succeed