1. MicroTCA Introduction ● New telecom standard from PICMG ● 75mm high cards with ~ 10Gbit/sec serial backplane (up to 20 ports) ● Selected for SLHC trigger platform for CMS Example “Matrix” card developed by LANL

2. MicroTCA HCAL Crate

3. Vadatech VT891 - commercial uTCA crate AMC 1 - SuperHTR AMC 2 - SuperHTR AMC 3 AMC 4 AMC 5 AMC 6 AMC 7 AMC 8 AMC 9 AMC 10 AMC 11 AMC 12 DTC (MCH2) MCH1 MCH1 (commercial): Ethernet, management interface MCH2 (DTC): Clock/controls distribution, DAQ

4. Typical MicroTCA Backplane Two MCH “Hubs” One will be commercial (for system control) (for HCAL, second will be our DTC) 12 identical AMC slots (for HCAL, SuperHTR) Typical 12-Slot MicroTCA Backplane (Schroff)

5. DTC Block Diagram

6. DTC Board Stack ● Build boards 1, 2 first ● Board 1: Power, controls ● Board 2: Clocks ● Build boards 3, 4 second ● DAQ concentrator