integer LINK_SIGNAL_SETTINGS = 0904241;

string OP_SETTINGS_WRITE = "settings_write";
string OP_SETTINGS_READ = "settings_read";
string OP_SETTINGS_REQUEST = "settings_req";
string OP_SETTINGS_RESPONSE = "settings_resp";
string OP_SETTINGS_RESPONSE = "settings_empty";
string OP_SETTINGS_DELETE = "settings_del";