SICK LLK1-N5 LLK1N5 Fiber Optic Sensor Interface Unit

LLK1-N5 is a SICK fiber-optic sensor interface unit designed to connect SICK fiber-optic sensing heads to standard automation controllers, enabling signal conditioning and transmission of optical data to a PLC or similar input. The model is listed as LLK1-N5 under catalog number 5304107 and appears in distributor listings as a fiber-optic sensor interface unit from Sick. The LLK1-N5 family includes multiple appended variants (for example LLK1-N5-A through LLK1-N5-Z) and sub-variants such as LLK1-N5-6000, reflecting different cable lengths or connector configurations offered by distributors. This unit is commonly used in compact sensing installations where fiber-optic cables bring light to the sensing head in hard-to-reach or hazardous environments, providing robust coupling between fiber heads and control systems. When selecting a variant, verify the exact sub-model to match your fiber head, connectors, and length needs.