RPC (Barrel) Cabling summary

Signal cable specifications Signal Cables (two possibilities): –Loose pair round and twisted pairs (with flat zone for crimping connector); (made by Amphenol) –Round and twisted pairs (no flat zone) (made by Kabelwerk) The choice will depend on the price including manufacturing Loose pair round twisted and flat zone for crimping Screened (2x20 cond.  =10 mm ) Insulation: Polyolefine Balanced impedance 113 OHM 6.45 CHF/mtAmphenol type ( C ) (tested ) Round twisted pairs NO flat zone for crimping Screened (2x20 cond.  =9.8 mm) Insulation: PE 0.2 mm Balanced impedance 100 OHM 7 CHF/mtKabelwerk Eupen (Belgium) (tested) to add the price of the mounting 5.93 CHF/cable

HV cable specifications Cable from KERPEN suitable to sustain up to 20 kV Cable characteristics: 1.In compliance with CERN safety instruction IS 23 2.Single conductor-  = 0.16 mm 3.Conductor 20°C = 147  /Km 4.Core-  = 3 mm 5.Screen wire-  =0.2 mm (for 10 conductors) 6.Overall diameter = 8.4 mm (for 3 conductors) 7.Price: €/Km (for 10 Km and 3 conductors cable)

LV cable requirements 8 conductors cable (  =1mm) Rated current/conductor = 3A Aluminium/mylar shield Sheath made by LSZH flame retardant and fire resistant material, halogene and sulphour free specification requested by Cern Safety Instruction IS23 (coloured in blue as requested)  Total cable diameter = 9.6 mm

5 Cabling RPCQty/sectorQty/wheelSize / cable (mm 2 ) Cross Section / sector (mm 2 ) Cross Section / wheel (mm 2 ) Signal Cable (on detector)78/90 (2) ,542/26,010277,440 HV cable (on detector to balcony) ,600 LV-FE (on detector to balcony)7 (3)841208,40010,080 LV-LB (on detector to balcony)13/15 (2) ,300/1,500(2)16,000 Slow control cable from FEB to CB in Link Board Box ,440 Slow Control MLB (from detector to counting room) ,600 Signal cable (to count room)(optical from MLB) ,304 MV-CL (RB to count room) (1) ,400 Cables quantity and occupancy (Barrel) (1)(Medium Voltage – Communication Link: from RB to Controller SY1527 (2)13 LB x 10 sectors (30° each) + 15 LB x 2 sectors (sectors 4 & 10) (3)We prefer 7 instead of 6 for a better distribution in RB2 divided by three case