"fail open" meaning in English

{
  "forms": [
    {
      "form": "fails open",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "failing open",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "failed open",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "failed open",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "fail open (third-person singular simple present fails open, present participle failing open, simple past and past participle failed open)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Networking",
          "orig": "en:Networking",
          "parents": [
            "Computing",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Coordinate term: fail closed"
        }
      ],
      "glosses": [
        "Of an access control system: to automatically let all traffic through in the case of a failure. For example, an emergency door unlocking in the event of a power outage."
      ],
      "id": "en-fail_open-en-verb-bDQEhGU6",
      "links": [
        [
          "cybersecurity",
          "cybersecurity"
        ],
        [
          "access control",
          "access control#Noun"
        ],
        [
          "system",
          "system#Noun"
        ],
        [
          "traffic",
          "traffic#Noun"
        ],
        [
          "power outage",
          "power outage#Noun"
        ]
      ],
      "raw_glosses": [
        "(cybersecurity) Of an access control system: to automatically let all traffic through in the case of a failure. For example, an emergency door unlocking in the event of a power outage."
      ]
    }
  ],
  "word": "fail open"
}

{
  "forms": [
    {
      "form": "fails open",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "failing open",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "failed open",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "failed open",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "fail open (third-person singular simple present fails open, present participle failing open, simple past and past participle failed open)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Networking"
      ],
      "examples": [
        {
          "text": "Coordinate term: fail closed"
        }
      ],
      "glosses": [
        "Of an access control system: to automatically let all traffic through in the case of a failure. For example, an emergency door unlocking in the event of a power outage."
      ],
      "links": [
        [
          "cybersecurity",
          "cybersecurity"
        ],
        [
          "access control",
          "access control#Noun"
        ],
        [
          "system",
          "system#Noun"
        ],
        [
          "traffic",
          "traffic#Noun"
        ],
        [
          "power outage",
          "power outage#Noun"
        ]
      ],
      "raw_glosses": [
        "(cybersecurity) Of an access control system: to automatically let all traffic through in the case of a failure. For example, an emergency door unlocking in the event of a power outage."
      ]
    }
  ],
  "word": "fail open"
}