This solid state ROM memory card is used in Honeywell’s Basic Controller. Its ROM contains the programs that the processor must execute in order to perform the control functions of the Basic Controller.

The card also contains volatile RAM, used to store data such as ranges, constants, configuration, tuning constants, etc. This card has no LED’s or jumpers. Issue 12 of this Solid State Memory card, as well as the newer 30750218-010, are LCN-compatible. The 30750218-010 version of this card is required to implement ST/DC.