The 70L-IACA is a dual-channel AC input module designed to sense the status of AC voltage sources. It operates with a nominal input voltage of 240 Vac within a wide range of 0-280 Vac/Vdc and features a nominal logic voltage of 5 Vdc. The module provides 2500 Vrms of optical isolation between field inputs and logic outputs, ensuring system protection. With its wide operating temperature range of -40 to +85°C and fast 20 ms turn-on/turn-off times, this module is suitable for reliable status monitoring in industrial control and automation systems.