DS200SLCCG3A is a LAN Communication Card and is part of the GE Speedtronic Mark V & EX2000 gas turbine control system. The LAN Communication Card (SLCC) contains both isolated and no isolated circuits for communication inputs to the controller. The SLCC board connects to the NTB/3TB, SDCC, TCCB, and to the DCFB through a 2PL connector. The SLCC boards are used in either Mark V (or) EX2000 control cabinet. An operator interface module that includes a digital display and keypad used for software adjustment diagnostic testing and digital readout of fault codes included on the SLCC board. The SLCC features a 16 position alphanumeric display (and display controller U-18) that connects to the programmer module.