1. 17/03/2003 Referee Meeting M. Beretta 1 MDT Barrel - Complete LV-HV rack 6U 1U 4U 2U 45U 19” Tangential Fan High Voltage Crate Low Voltage Crate Heat Exchanger Deflectors HOT AIR COLD AIR

2. 17/03/2003 Referee Meeting M. Beretta 2 TGC1 - Complete LV-HV rack Available and the market: 34 U minirack 1582 x 553 x 400 mm 3 (H x W x T) 29U Patch panel 9U9U 6U 6U6U 2U 19” 4U4U 2U High Pt trigger and Star Switch electronics

3. 17/03/2003 Referee Meeting M. Beretta 3 TGC2 and TGC3 - Subrack Solution 1 – Horizontal boards cooled by tangential fans. Not enough space to host all distributors in the available space 48 TE max 44 TE 1 TE max Solution 2 – An air deflector is added to the bottom of the subrack, and air ventilation is provided by a tangential fan. Maximum heigh of deflector should be 1 U