Siemens FDCI221 Input Module (1 Input)

The Siemens FDCI221 is a professional addressable input module designed to provide secure and precise monitoring for the C-NET loop. With its single monitored input, it allows for the seamless integration of external technical signals?such as flow switches or damper statuses?into a centralized fire management system. Featuring an integrated line isolator for maximum system uptime and continuous fault monitoring, the FDCI221 delivers a high level of reliability and safety for sophisticated fire detection networks in both medium and large-scale facilities.

Key Features
? Monitored Input: Connects one potential-free contact (Normally Open or Normally Closed). The line is monitored for open circuits and short circuits using termination resistors.
? Microprocessor Control: Features intelligent signal processing to filter out noise and ensure stable reporting of technical statuses or fire alarms.
? C-NET/FDnet Powered: Draws power directly from the loop; no auxiliary power supply is required.
? Integrated Line Separator: Built-in short-circuit isolator ensures the loop remains functional even if a fault occurs at the device or its cabling.
? LED Status Indicator: Multi-color LED provides clear visual feedback for alarm, fault, and localization/testing.
? Flexible Mounting: Can be mounted on a standard TS35 DIN rail or surface-mounted inside an enclosure.

Technical Specifications
? Model: FDCI221
? Part Number: S54312-F1-A1
? Communication Protocol: FDnet / C-NET
? Standard: EN 54-17, EN 54-18
? Operating Voltage: 12V DC ? 33V DC
? Quiescent Current: Max. 0.3 mA
? Line Resistance (Input): Max. 20 Ohm
? Operating Temperature: -25?C to +70?C
? Protection Category: IP30 (Standard) / IP65 (with FDCH221 housing)
? Dimensions (W x H x D): 95mm x 71mm x 23mm
? Weight: 0.063 kg