{
  "series": [
    "3BDW-H601",
    "3BDW-T601",
    "3BDW-H611",
    "3BDW-H621",
    "3BDW-H631",
    "3BDW-H641",
    {
      "parallel_no_redundancy": [
        {"series": ["3BDW-M521A", "3BDW-P521A", "3BDW-H521A"]},
        {"series": ["3BDW-M521B", "3BDW-P521B", "3BDW-H521B"]}
      ]
    }
  ]
}