{
  "revision": "D01",
  "status": "PROPOSED; not a wiring construction schedule",
  "units": "mm unless otherwise stated; null means NOT SELECTED",
  "no_actuation_firmware": true,
  "zones": [
    {
      "id": "H01",
      "zone": "Helmet and collar",
      "proposed_from": "B01 rear bay",
      "proposed_to": "Helmet local node",
      "function": "Low-power fan, sensors and indication; AR independent",
      "keep_out": "Head rotation, throat, faceplate and optics",
      "selected_voltage_V": null,
      "continuous_current_A": null,
      "peak_current_A": null,
      "wire_gauge": null,
      "wire_part_number": null,
      "connector_part_number": null,
      "pinout": null,
      "length_mm": null,
      "fuse_rating_A": null,
      "mount_coordinates_mm": null,
      "status": "routing reservation; no installed harness"
    },
    {
      "id": "B01",
      "zone": "Rear service bay",
      "proposed_from": "Source protection",
      "proposed_to": "Branch distribution",
      "function": "Controller and serviceable distribution",
      "keep_out": "Back padding and harness release",
      "selected_voltage_V": null,
      "continuous_current_A": null,
      "peak_current_A": null,
      "wire_gauge": null,
      "wire_part_number": null,
      "connector_part_number": null,
      "pinout": null,
      "length_mm": null,
      "fuse_rating_A": null,
      "mount_coordinates_mm": null,
      "status": "routing reservation; no installed harness"
    },
    {
      "id": "A01-L",
      "zone": "Left arm",
      "proposed_from": "B01 rear bay",
      "proposed_to": "Left forearm pod",
      "function": "Local control and optional visibility",
      "keep_out": "Armpit/elbow folds and spring/hinge sweep",
      "selected_voltage_V": null,
      "continuous_current_A": null,
      "peak_current_A": null,
      "wire_gauge": null,
      "wire_part_number": null,
      "connector_part_number": null,
      "pinout": null,
      "length_mm": null,
      "fuse_rating_A": null,
      "mount_coordinates_mm": null,
      "status": "routing reservation; no installed harness"
    },
    {
      "id": "A01-R",
      "zone": "Right arm",
      "proposed_from": "B01 rear bay",
      "proposed_to": "Right forearm pod",
      "function": "Local control and optional visibility",
      "keep_out": "Armpit/elbow folds and spring/hinge sweep",
      "selected_voltage_V": null,
      "continuous_current_A": null,
      "peak_current_A": null,
      "wire_gauge": null,
      "wire_part_number": null,
      "connector_part_number": null,
      "pinout": null,
      "length_mm": null,
      "fuse_rating_A": null,
      "mount_coordinates_mm": null,
      "status": "routing reservation; no installed harness"
    },
    {
      "id": "P01",
      "zone": "Power reservation",
      "proposed_from": "Commercial protected pack",
      "proposed_to": "Reachable total disconnect",
      "function": "Candidate source and isolation location",
      "keep_out": "Pelvic gates, sitting and pressure points",
      "selected_voltage_V": null,
      "continuous_current_A": null,
      "peak_current_A": null,
      "wire_gauge": null,
      "wire_part_number": null,
      "connector_part_number": null,
      "pinout": null,
      "length_mm": null,
      "fuse_rating_A": null,
      "mount_coordinates_mm": null,
      "status": "routing reservation; no installed harness"
    },
    {
      "id": "L01-L",
      "zone": "Left leg",
      "proposed_from": "Protected low-power branch",
      "proposed_to": "Optional left lower-leg module",
      "function": "Minimal visibility and diagnostic services",
      "keep_out": "Rear knee, boot entry and walking surface",
      "selected_voltage_V": null,
      "continuous_current_A": null,
      "peak_current_A": null,
      "wire_gauge": null,
      "wire_part_number": null,
      "connector_part_number": null,
      "pinout": null,
      "length_mm": null,
      "fuse_rating_A": null,
      "mount_coordinates_mm": null,
      "status": "routing reservation; no installed harness"
    },
    {
      "id": "L01-R",
      "zone": "Right leg",
      "proposed_from": "Protected low-power branch",
      "proposed_to": "Optional right lower-leg module",
      "function": "Minimal visibility and diagnostic services",
      "keep_out": "Rear knee, boot entry and walking surface",
      "selected_voltage_V": null,
      "continuous_current_A": null,
      "peak_current_A": null,
      "wire_gauge": null,
      "wire_part_number": null,
      "connector_part_number": null,
      "pinout": null,
      "length_mm": null,
      "fuse_rating_A": null,
      "mount_coordinates_mm": null,
      "status": "routing reservation; no installed harness"
    }
  ],
  "power_domains": [
    {
      "id": "COMFORT",
      "function": "Fans and local alerts",
      "survives_accessory_motion_stop": "design requirement, not demonstrated",
      "survives_total_disconnect": false
    },
    {
      "id": "LOGIC",
      "function": "Regulated local controller/sensors",
      "survives_total_disconnect": false
    },
    {
      "id": "ACCESSORY",
      "function": "Low-energy cosmetic motion only",
      "default_enabled": false,
      "hardware_enable": "TBD",
      "restart": "Deliberate local enable after fault; not implemented"
    }
  ],
  "modules": [
    {
      "id": "A01",
      "name": "Accessory backplate",
      "actual_cad_coupon": true,
      "nominal_dimensions_mm": [
        60,
        45,
        3
      ],
      "rated_load": null
    },
    {
      "id": "C01-C02",
      "name": "Two-lane service carrier",
      "actual_cad_coupon": true,
      "assembled_nominal_dimensions_mm": [
        40,
        80,
        14
      ],
      "lane_widths_mm": [
        14,
        8
      ],
      "lane_clear_height_mm": 10,
      "rated_load": null
    },
    {
      "id": "A02",
      "name": "Rear controller tray",
      "actual_cad_coupon": false
    },
    {
      "id": "A03",
      "name": "Forearm control pod",
      "actual_cad_coupon": false
    },
    {
      "id": "A04",
      "name": "Fan/filter cassette",
      "actual_cad_coupon": false
    },
    {
      "id": "A05",
      "name": "Helmet sensor carrier",
      "actual_cad_coupon": false
    },
    {
      "id": "A06",
      "name": "Visibility and communications module",
      "actual_cad_coupon": false
    }
  ],
  "sensor_candidates": [
    "temperature/humidity",
    "fan tach",
    "latch/travel indication",
    "voltage/current",
    "IMU logging",
    "advisory ToF",
    "temporary pressure mapping",
    "optional deliberate camera/microphone"
  ],
  "ar": {
    "device_owned": false,
    "selected_device": null,
    "candidate": "used HoloLens 2 or other suitable replaceable AR device",
    "power": "manufacturer-supported; no battery splice",
    "calibrated_optics_repackaging": "unproven"
  }
}