1. RPC Trigger Electronics Review Subjects: Link System Low Voltage Link System Upgrade Krzysztof Doroba, University of Warsaw Krzysztof Doroba, RPC TRigger Review, 22.01.2009

2. Low Voltage Low Voltage for Link Board System 68 A3016 9 A3486S+1A3486=10 MAO’s 21 Easy Crates Performance/Problems Painfull breaking period of CAEN products - factory recalls due to design imperfections 4 A3016 not delivered yet 2 MAOs and 3 A3016 failed during operation (fixed)‏ Krzysztof Doroba, RPC TRigger Review, 22.01.2009

3. Low Voltage and Upscope Power Supply for VM Trigger Crates - already covered by Wojtek Okliński talk RPC System Upgrade: re-addinng re4 for η<1.6 extend acceptance up to η=2.1 Krzysztof Doroba, RPC TRigger Review, 22.01.2009

4. Reduced RE system |  | < 1.6 ME3 1.6 ME4/1 restored MB1 MB2 MB3 MB4 RPC Muon Chamber Geometry Today ME1 ME2

5. ME4/1 restored MB1 MB2 MB3 MB4 ME1 ME2 ME3 Geometry After Upscope RPC Upgraded RE system |  | < 2.1

6. RPC Trigger Upgrade Krzysztof Doroba, RPC TRigger Review, 22.01.2009 RPC Trigger System Upgrade Trigger (USC55) part - covered by Wojtek Okliński Link System (UXC55) part more linkboards (MLB,SLB,CB)‏ more linkboard boxes (LBBox)‏ more LV PS extra cabling

7. Link system (1)‏ MLBSLBCBLBB re1,2<1.6961924824 re3<1.648962412 Total Endcap1442887236 Total Barrel30050012060 Total <1.644478819296 Staged Link system Krzysztof Doroba, RPC TRigger Review, 22.01.2009

8. MLBSLBCBLBBox re1>1.672*12* re2>1.624 0 re3>1.624 0 re4>1.624 0 total>1.61447212 MLBSLBCBLBBox re4<1.648962412 re-adding re4 for |η|<1.6 Extending re1,re2,re3,re4 up to |η|<2.1 Link system (2)‏ * *MLB, CB and LBB for re1/1 are of the special type

9. Link system (3)‏ LBB boards MLBSLBCBTotal Total (+spares)‏ produced44478819214241600 upgrade hi eta (w/o re1/1, re4)‏48 96110 upgrade re4, <2.17212024216240 upgrade re1/172 1284100 LV LBBA3016A3486 installed system966410 upgrade re4, re1/124162 upgrade re1/11282 Krzysztof Doroba, RPC TRigger Review, 22.01.2009 Low Voltage system upgrade:

10. LB System Cables LB system for RE4 needs new cabling (from LBB to USC) and room for crates RE1/1 requires no new cabling, LBBoxes installed RE1/1 requires room for Power Supplies Krzysztof Doroba, RPC TRigger Review, 22.01.2009 Questions: room for RE1/1 LV PS at YE+1,YE-1?