1. 1 Service panels run from detector end to end of support tube X-section through service panels 3-D view of panels PP0 region. All services break here Patch Panel 0(PP0)

2. 2 Detector end of service panel PPO Flex Boards connect Electrical cables from modules to Optical & electrical services Opto boards PP0 Region Type 0 cables plug into PP0

3. 3 PP0 and Opto-Board Prototype Loop-back test through opto-board

4. 4 First Mechanical Prototype Service panel mockup

5. 5 PP0 Status PP0 prototype v2 flex has been fabricated. In use for prototype opto-board test. Single PP0 flex will be laminated to PCB for initial system tests. This will largely validate electrical design. Many flexes will be laminated to composite panel as part of full service panel prototype. Composite panel under fabrication, lamination in January. Full service panel prototype will include soldering of Type I cables to PP0 prototypes. This will be completed by summer 2003. By summer 2003 should also have results from system tests. PP0 FDR in June 2003(along with service panels). PRR a few months later.