{
  "_id": "029014",
  "classname": "Map data",
  "classno": "29",
  "datawidthbits": "504",
  "name": "Optional list of parameters for an external map projection library",
  "refvalue": "0",
  "scale": "0",
  "status": "Operational",
  "unit": "CCITT IA5"
}