The ELCB (Ethernet based Lock Control Board) incorporates the lock functions like the lock control algorithm and the H0 current source. In addition this ELCB acts as communication gateway between the workstation and the various subunits inside of the BSMS/2. The BSMS/2 can be directly accessed with a standard Internet browser via ethernet TCP/IP protocol or allows hardware independent communication with TopSpin 2.0 and higher by using a CORBA interface.