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Spectrum Controls RDI-116 Input Module
Spectrum Controls RDI-116 Input Module
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Description:
The Spectrum Controls 8000-RDI-116 Input Module is a 16-channel digital input module designed for SYMAX backplanes and Spectrum Controls 8000 I/O systems. It accepts 12–24 V AC or DC signals on all channels and provides 16 discrete inputs to the host controller, with a typical current draw of 650 mA at 24 V. The RDI-116 is a direct replacement for earlier RDI D16 and RDI B16 modules, but it does not include the freezable high-speed counter inputs found on certain variants. Ideal for wiring dry-contact sensors or switch closures in SYMAX configurations, this module enables reliable digital input acquisition while preserving compatibility with legacy Spectrum Controls backplanes.
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