The source unit has a check data unit generating at least one check datum for control data for the medical device , and {HEAD ~ a transmitting unit} transmitting the control data and the check datum to {TAIL ~ the collection unit}  
The source unit has a check data unit generating at least one check datum for control data for the medical device , and { HEAD ~ a transmitting unit } transmitting the control data and the check datum to { TAIL ~ the collection unit }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH