{
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    {
      "ch": 5,
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    {
      "ch": 6,
      "singal_type": "1~5V",
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      "ch": 8,
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      "ch": 9,
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      "limit_high": 8.0
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      "ch": 10,
      "singal_type": "1~5V",
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      "limit_high": 8.0
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    {
      "ch": 11,
      "singal_type": "4~20mA",
      "line_no": 1,
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      "limit_high": 8.0
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      "ch": 12,
      "singal_type": "4~20mA",
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      "limit_high": 20.0
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    {
      "ch": 11,
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      "ch": 12,
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}