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    (title "Fiber Dig-In Alarm — Cabinet Board Prototype (2-channel) — Power")
    (date "2026-10-24")
    (rev "P1")
    (company "Prototype for engineering review")
    (comment 1 "Bench prototype: 2 optical TX (SFP) + 2 optical RX channels, MCU, power, alarm latch, relays")
    (comment 2 "Production board repeats the RX channel x8 and SFP slot x8 (see design spec)")
    (comment 3 "Generated schematic — verify custom/unfootprinted parts before layout"))
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