The latest official layout can be examined via the Rack Wizard tool. For quick reference here is the diagram for the L1Calo row of racks.
ATLAS technical coordination has prepared a draft summary of the power requirements of our racks. The L1Calo racks have labels (eg Y.19-2.A2) ending in A2 (for usA 15 level 2).
A rationale for the layout of the Calorimeter racks is given here.
The table below has some diagrams showing the proposed layout of trigger racks in USA15.
| Niveau 1 (Muons, CTP, TTC) | GIF | EPS |
| Niveau 2 (Calorimeter) | GIF | EPS |
| Latency and intercrate connections | GIF | EPS |
| PreProcessor crates and cabling: elevation (A side) | JPEG | EPS |
| Receiver crates and cabling: elevation (A side) | JPEG | EPS |
Earlier ideas (including indications of cable lengths) may be found here.
More detailed drawings and views of USA15, and also diagrams of the racks including cable trays etc can be found via the CERN EST-LEA racks website. The main list of those diagrams, all of which are in HPGL format, is here. Those for USA15 are shown below.
| Niveau 1 | Plan | 3D |
| Niveau 2 | Plan | 3D |
There is also a diagram showing the shielding wall between USA15 and the cavern with the route of the holes for the trigger cables.
