If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Honeywell FS-TSDI-1624C Digital Input Module Introduction The Honeywell FS-TSDI-1624C Digital Input Module is designed to reliably acquire discrete ON/OFF signals from field devices and deliver them to Honeywell FS control systems. Optimized for high-speed and precise input detection, *Your Name: *Your Email: *Your Name: *Vdcode: Submit