{
 "description": "The power domains of EIS chapter 6: one row per domain, read by tools/power_domains.py into the domain table of clause 6.1 and the ripple limits of clause 6.2, by the power-domains card, and by tools/claim.py and tools/row_budget.py for the rails a claim file or a row budget states in each domain.",
 "domains": [
  {
   "id": "PWR-BUS",
   "name": "The bus",
   "rails": "+12 V, −12 V; +5 V optional",
   "rail_keys": [
    {
     "key": "plus12",
     "label": "+12 V",
     "required": true
    },
    {
     "key": "minus12",
     "label": "−12 V",
     "required": true
    },
    {
     "key": "plus5",
     "label": "+5 V",
     "required": false
    }
   ],
   "made_by": "power supply",
   "distributed_by": "bus board and power ribbon",
   "entry": "power header, 2 × 5 or 2 × 8",
   "entry_connectors": [
    "BUS-IDC10",
    "BUS-IDC16"
   ],
   "outlets": "supply terminals, bus board headers",
   "outlet_limit_a": 2.0,
   "clauses": [
    "6.4",
    "6.5",
    "6.6"
   ],
   "ripple_limit_mvpp": 150,
   "ripple_note": "Most open-frame switching supplies meet it.",
   "features": {
    "in": "PWR-BUS-IN",
    "out": "PWR-BUS-OUT"
   }
  },
  {
   "id": "PWR-DC12",
   "name": "12 V DC",
   "rails": "12 V: one +V and −V pair",
   "rail_keys": [
    {
     "key": "v12",
     "label": "12 V",
     "required": true
    }
   ],
   "made_by": "external adapter, outside EIS, or a power supply with PWR-DC12 outlets (6.2)",
   "distributed_by": "PWR-DC12 outlets of a bus board, a module, or a supply, and DC cables",
   "entry": "DC entry, DC-BAR21 to DC-MF8",
   "entry_connectors": "data/dc_12.json variants and entry_inlets",
   "outlets": "DC-BAR21 jacks, DC-VH2 headers on any product with PWR-DC12 outlets",
   "outlet_limit_a": null,
   "clauses": [
    "6.7"
   ],
   "ripple_limit_mvpp": null,
   "ripple_note": "Not set: the adapter that makes it is outside EIS.",
   "features": {
    "in": "PWR-DC12-IN",
    "out": "PWR-DC12-OUT"
   }
  },
  {
   "id": "PWR-A6",
   "name": "±6 V analog",
   "rails": "+6 V, −6 V",
   "rail_keys": [
    {
     "key": "plus6",
     "label": "+6 V",
     "required": true
    },
    {
     "key": "minus6",
     "label": "−6 V",
     "required": true
    }
   ],
   "made_by": "power supply or power converter",
   "distributed_by": "A6-VH3 outlets of a supply, a converter, or a bus board, and PWR-A6 cables",
   "entry": "PWR-A6 entry, A6-VH3",
   "entry_connectors": [
    "A6-VH3"
   ],
   "outlets": "A6-VH3 outlets of a supply, a converter, or a bus board",
   "outlet_limit_a": 1.0,
   "clauses": [
    "6.8"
   ],
   "ripple_limit_mvpp": 20,
   "ripple_note": "For the analog rails a module regulates locally; a linear source is typically under 5 mV.",
   "features": {
    "in": "PWR-A6-IN",
    "out": "PWR-A6-OUT"
   }
  },
  {
   "id": "PWR-A15",
   "name": "±15 V analog",
   "rails": "+15 V, −15 V",
   "rail_keys": [
    {
     "key": "plus15",
     "label": "+15 V",
     "required": true
    },
    {
     "key": "minus15",
     "label": "−15 V",
     "required": true
    }
   ],
   "made_by": "power supply or power converter",
   "distributed_by": "A15-MF4 outlets of a supply, a converter, or a bus board, and PWR-A15 cables",
   "entry": "PWR-A15 entry, A15-MF4",
   "entry_connectors": [
    "A15-MF4"
   ],
   "outlets": "A15-MF4 outlets of a supply, a converter, or a bus board",
   "outlet_limit_a": 2.0,
   "clauses": [
    "6.9"
   ],
   "ripple_limit_mvpp": 20,
   "ripple_note": "For the ±15 V analog rails of op-amp circuits that run at the full rail; a linear source is typically under 5 mV.",
   "features": {
    "in": "PWR-A15-IN",
    "out": "PWR-A15-OUT"
   }
  }
 ],
 "row_wiring": {
  "description": "Clause 6.1, row wiring: the discrete wires between a power supply, bus boards, a DC distribution product, and a DC entry (PWR-005 to PWR-008), and what EIS recommends for them.",
  "terminals": [
   {
    "type": "quick-connect tab",
    "size": "6.3 mm × 0.8 mm (¼ in, the 250 series)",
    "mate": "fully insulated receptacle, crimped",
    "rated_a": 15,
    "recommended_for": "bus board inputs and links; supply outputs on a board"
   },
   {
    "type": "stud or screw for a ring terminal",
    "size": "M3 or M4 (ring terminal sized to the stud)",
    "mate": "insulated ring terminal, crimped, under a toothed lock washer",
    "rated_a": 20,
    "recommended_for": "0 V and earth bonds; bus bars; metal-case supplies"
   },
   {
    "type": "wire-clamp terminal block",
    "size": "screw or spring clamp for 12 to 16 AWG",
    "mate": "bare stranded end with a crimped ferrule",
    "rated_a": 15,
    "recommended_for": "the output block of a metal-case supply"
   }
  ],
  "conductors": [
   {
    "up_to_a": 5,
    "min_awg": 16,
    "mm2": 1.3,
    "note": "most rows: a 16 AWG rail conductor drops about 25 mV per metre at 3 A"
   },
   {
    "up_to_a": 8,
    "min_awg": 14,
    "mm2": 2.1,
    "note": "a large row, or several bus boards on one pair"
   },
   {
    "up_to_a": 15,
    "min_awg": 12,
    "mm2": 3.3,
    "note": "the limit of a 6.3 mm tab; above it, use a second pair"
   }
  ],
  "wire": "stranded copper, PVC insulated and rated 105 °C (UL 1015 at 600 V or UL 1007 at 300 V), or silicone where the wire flexes",
  "contact": "tin-plated brass or phosphor bronze; a crimp made with the terminal maker's tool; under 5 mΩ per joint",
  "colors": "red +12 V, blue −12 V, black 0 V, no color named for +5 V (6.4); green-and-yellow only for an earth bond",
  "earth_bond_min_awg": 14
 }
}