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EIC-UK WP1 Mechanics meeting

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    • 1
      General discussion
      Speakers: Adam Huddart (Science and Technology Facilities Council), Che Sum Tse (University of Birmingham UK), Georg Viehhauser (member@ox.ac.uk;staff@ox.ac.uk), James Julian Glover (University of Birmingham (UK))
      • a) Update on CB
      • b) Update on FIB

        Full list of desired connections on FIB:

        1. Serial powering (from Control Room):
          • I_in.
          • I_out.
        2. CB-to-FIB:
          • 3 x diff pair for FPC S/Cs (6 wires).
          • VTRx+ power (2V5 domains could be supplied by 1 source, GND could be shared for all domains) (3-6 wires).
            • 1V2 Tx domian (VCCT1V2).
            • 2V5 Tx domain (VCCT2V5).
            • 2V5 Rx domain (VCCR2V5).
            • GND needed.
          • VTRx+ I2C (share GND with power domains?) (2-3 wires).
            • SCL.
            • SDA.
          • Laser driver controls (2 wires).
            • Reset.
            • Disable.
          • RSSI (Rx current monitor) (1 wire).
          • VTRx+ thermistor (2 wires).
            • 2 terminal interface.
          • Voltage sense (for VTRx+ domains) (3-4 wires).
            • 1V2 domain.
            • Shared or separate 2V5 domains?
            • GND sense (to account for V-shift on both rails). 

        2 SP wires needed.

        Minimum of 19 wires (up to 24) between CB and FIB.

        • Minimum only includes 1 x GND wire (we probably want more)!

        The VTRx+ has 25 pins that would be fed to the CB (+2pins/fibre=10 and 5N/C on a 40pin connector). See page9 of https://edms.cern.ch/ui/file/1719329/1/VTRxPlus_spec.pdf.

        • 12 GND pins.
        • 2 pins/voltage domain (6 pins total).
    • 2
      AOB
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