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Digital Input Module16DI 24VDC Sink Type

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Digital Input Module16DI 24VDC Sink Type

CT-121F Digital Input Module16DI 24VDC Sink Type The CT-121F is a 16-channel digital input module from Sichuan ODOT Automation System Co., Ltd., a global provider of robust industrial I/O solutions. Designed for 24VDC sink-type inputs with high-level signal validity, it interfaces with dry contacts, active outputs, and 2-/3-wire digital sensors. Each channel features opto-isolation between field inputs and the internal bus, an LED status indicator, and configurable signal filtering and holding time. With an optional counting sub-module, every channel supports an independent 32-bit counter (<200 Hz), with user-defined counting mode, direction, and byte transmission order. Channels can also be individually disabled for flexible system configuration.  Technical Parameters General Parameters Power Consumption Max.63mA @ 5.0Vdc   Isolation I/O to internal bus: opto-couple isolation (3KVrms) Field Power  Nominal:24Vdc, Range: 19.2-28.8Vdc Wiring Max.: AWG 18;Min.: AWG 24 Inst…