msc {
	trxc [label="TRXC"], tf [label="TF"], is [label="IS"], cf [label="CF"], bsc [label="BSC"];
	cf => bsc	[label="Fault Report"];
	cf <=> bsc	[label="Start incl. Negotiation"];
	cf <=> bsc	[label="Operational Info"];

	is <=> bsc	[label="Connect"];
	is <=> bsc	[label="Reset"];
	is <=> bsc	[label="Start"];
	is <=> bsc	[label="Config"];
	is <=> bsc	[label="Enable"];
	is <=> bsc	[label="Operational Info"];

	trxc <=> bsc	[label="TRXC + dependent objects"];

	cf <=> bsc	[label="Calendar Time"];

	tf <=> bsc	[label="Conncet"];
	tf <=> bsc	[label="Reset"];
	tf <=> bsc	[label="Start"];
	tf <=> bsc	[label="Config"];
	tf <=> bsc	[label="Enable"];
	tf <=> bsc	[label="Operational Info"];
}