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Product Overview
The Honeywell FS-TSFIRE-1624 serves as a dedicated Field Termination Assembly (FTA) for fire detection applications within the Safety Manager and FSC (Fail-Safe Controller) safety systems . This module directly interfaces digital fire detectors and manual call points with the SAI-1620m high-density analog input module . Additionally, the FS-TSFIRE-1624 ensures reliable signal monitoring with comprehensive line supervision in safety-critical installations.
Technical Specifications
The FS-TSFIRE-1624 provides 16 supervised digital input channels for fire detectors . This module requires an external 24 V DC power supply and delivers a current-limited field signal for hazardous area compliance . Furthermore, the unit supports end-of-line (EOL) resistors to enable open-circuit and short-circuit supervision .
| Parameter | Specification |
|---|---|
| Manufacturer | Honeywell |
| Number of Input Channels | 16 |
| Power Supply Voltage | 24 V DC +25% / –15% |
| Max. Current Consumption | 570 mA at 24 V DC ext. |
| No-Load Current | Typ. 11 mA at 24 V DC |
| Channel Resistance | 680 Ω ±5% |
| Short-Circuit Current | 35 mA at 24 V DC ext. |
| Open Voltage (No Load) | Typ. 23.5 V DC at 24 V DC ext. |
| Voltage with EOL Resistor | Typ. 20.5 V DC at 24 V DC ext. |
| Relay Voltage Range | 17 – 39 V DC |
| Relay Current | Typ. 8.5 mA at 24 V DC |
| EOL Resistor (Recommended) | 4.7 kΩ ±5%, 0.25 W |
| Field Wire Resistance Max | < 100 Ω |
| Mounting | DIN rail (TS32/TS35 × 7.5) |
| Used Rail Length | 171 mm (6.73 in) |
| Module Dimensions (L×W×H) | 170 × 70 × 58–64 mm |
| Weight | 0.16–0.30 kg (varies by source) |
| Operating Temperature | –20°C to +70°C |
| Approvals | CE, TUV, UL, CSA, FM |
| Hazardous Location | Class I, Division 2 certified |
| Origin | USA |
Key Design Features
The FS-TSFIRE-1624 provides power to each detector with voltage-current limitation in compliance with Class I Division 2 hazardous area requirements . This module includes a global reset function that removes supply voltage to all connected detectors via an onboard relay . Additionally, the unit uses an SICC-0001/Lx system interconnection cable to transmit the 16 input signals to a redundant pair of SAI-1620m modules for high availability . The screw-type terminals support wire sizes up to 2.5 mm² (AWG 14) with a tightening torque of 0.5 Nm, ensuring secure and serviceable field wiring .
Application and Integration
The FS-TSFIRE-1624 integrates seamlessly with Honeywell Safety Manager, FSC, and Experion PKS platforms in fire-and-gas (F&G) detection systems . System engineers commonly deploy this module in oil and gas refineries, chemical plants, and power generation facilities requiring SIL-rated fire monitoring . Consequently, it plays a vital role in emergency shutdown (ESD) and life safety applications where continuous, supervised fire detection is paramount .