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    (rev "A draft")
    (company "Engineered Lighting")
    (comment 1 "ENGINEERING DRAFT - see release status before fabrication"))
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  (wire
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      (xy 133.35 39.37)))
  (wire
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  (text "USB DATA / MAIN BOARD REQUIRES EXTERNAL 24 V"
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  (text "U17 uses host VBUS for interface bias only.\nSEL=0: MCU pair parked through separate 1k resistors.\nSEL=1: host pair connected; OEn=1 isolates both."
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  (text "U15: GND-only data clamps, pins1/3 NC.\nD30: VBUS protection; R40: VBUS bleed.\nR41/R39: supervisor-to-SELECT divider."
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  (text "No VBUS connection to main +5V/+3V3.\nREADY source: power_sequence.\nPartial-supply switching remains a prototype check."
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  (embedded_fonts no))