The CTX 100 uses a high speed, 32 bit, RISC processor, dynamic random access memory (DRAM) working memory, static random access memory (SRAM) with lithium battery for memory backup, and flash program memory. An on-board terminal strip provides an interface to an open relay contact which can be programmed to control a night bell, door lock or to mute BGM during an external page. Also on board are two RCA jacks with volume controls to interface with music on hold and background music sources. Subassemblies can also be attached to the ACTU processor to provide additional features. One Per CIX100 System Only. New + 2 year warranty.