The IS200VCMIH1BCC is a printed circuit board manufactured by General Electric. It is a board component of the Mark VI turbine control system. The Mark VI is part of the Speedtronic line that has been distributed by GE in different iterations since the late 1960s.
The IS200VCMIH1BCC functions within the Mark VI system to transmit I/O data. It is part of the VME backplane and transmits internal information between I/O cards contained within its own rack system as well as those on interface modules, protection modules, control modules, and the main processor card.
The IS200VCMIH1BCC uses IONet for the transmission of data between modules. IONet is a (private) special-purpose type of Ethernet used for Mark control I/O packs and controllers. This uses IEEE 1588 protocol. When a VCMI card is installed in the Control Module, it functions as the IONet bus master and communicates to slave stations using Ethernet 10Base2 network connections. A VCMI card is typically installed in each of the three control modules in a triple-redundant setup. Data from each of these cards is exchanged and voted upon before it is transmitted to the main processor card for the execution of applications.
The IS200VCMIH1BCC is designed with a connected front faceplate. This faceplate includes a single IONet port as well as multiple LED indicators. Indicators are labeled by use and are grouped together in a logical fashion. The faceplate is marked with the board number and with the GE logo.
For additional information, please refer to original publications from GE like manuals or data sheets.