The NX-540E is a microcomputer-controlled telephone interface that may be added to NX control panels. The "Operator" converts any touchtone telephone to a system keypad and allows system functions to be accessed via telephone on premises or off-site. There are 48 separate zone descriptions that may be programmed to fit the owner's needs. In addition, the "Operator" will control up to 32 X10 modules (requires only one X10 Pro PSC04 Interface Module per NX system) with programmable description for each.
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