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- Honeywell
- FS-TSDI-1648
- Safe Digital Input Module
- USA
- 100 mm × 100 mm × 40 mm
- 0.32kg
- Xiamen, China
- New & In Stock
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- 1 Year
- 1-3 Working Days
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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📘 Product Introduction – Honeywell FS-TSDI-1648
The FS-TSDI-1648 is a safety-rated digital input module designed to interface 16 isolated digital input signals from field equipment to the safety logic system. This model is typically used in Safety Instrumented Systems (SIS) and is known for its high reliability, electrical isolation, fault detection capabilities, and compact design. It ensures that incoming signals from field devices are accurately read, protected, and safely transmitted.
This module plays a critical role in industrial automation, process safety, and emergency shutdown systems, where safety and signal integrity are paramount.
🛠️ Application Scenarios
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Emergency Shutdown (ESD) Systems
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Safety Instrumented Systems (SIS)
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Burner Management Systems (BMS)
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Chemical and petrochemical plants
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Oil and gas platforms and refineries
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Power generation facilities
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Monitoring of limit switches, pressure switches, safety contacts
✅ Product Advantages
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Safety Compliance: Meets requirements for SIL-rated safety systems.
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16 Isolated Inputs: Enables high-density input within a compact module.
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Fault Detection: Built-in diagnostics for line breaks, short circuits, and signal loss.
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Robust Isolation: Field-to-system electrical isolation enhances protection.
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Compact Design: Saves cabinet space while maintaining functionality.
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Wiring Efficiency: Field Termination Assembly (FTA) simplifies wiring and maintenance.
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Reliable Performance: Suitable for harsh industrial environments.
🏷️ Brand and Series
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Brand: Honeywell
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Series: Safety Field Termination Assemblies (FTA) – Safe Digital Input series
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Product Type: Safe Digital Input Module
📊 Technical Specifications – FS-TSDI-1648
| Parameter | Specification |
|---|---|
| Model | FS-TSDI-1648 |
| Number of Inputs | 16 Digital Inputs |
| Input Voltage | 48 V DC (Nominal) |
| Input Type | Isolated Digital (Dry/Wet Contact) |
| Diagnostic Features | Short circuit / Open line detection |
| Input Isolation | Channel-to-channel and system-side |
| Status Indication | Per channel (LED or logic) |
| Mounting | Panel / DIN Rail (with accessory) |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions (W × H × D) | 100 mm × 100 mm × 40 mm |
| Weight | 0.32 kg |
| Certifications | CE, UL, SIL-ready |
| Compatible Cable | SICC-type interface cables |
| Typical Response Time | <10 ms |
| Protection | PTC resettable fuse / Isolation |
🔁 Recommended Related Models (Same Series / Function)
| Model | Channels | Voltage | Application | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| FS-TSDI-1624 | 16 | 24 V DC | Safe input, low voltage variant | 100 × 100 × 40 | 0.30 |
| FS-SDI-1648 | 16 | 48 V DC | Standard digital input (non-FTA) | 90 × 100 × 35 | 0.28 |
| FS-TSDI-0824 | 8 | 24 V DC | Compact version, 8 inputs | 70 × 90 × 35 | 0.22 |
| FS-TSDI-1648X | 16 | 48 V DC | Enhanced diagnostic model | 100 × 110 × 40 | 0.35 |
| FS-TDO-1648 | 16 | 48 V DC | Output counterpart (safe outputs) | 100 × 100 × 40 | 0.33 |
🔝 Recommended Popular Models (Same Brand)
| Model | Function | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| FS-TRO-1024 | Relay Output Module | 24-channel relay output | 100 × 120 × 45 | 0.40 |
| FS-TPSU-2430 | Power Supply Unit | 24V DC power output, 3.0A | 90 × 100 × 50 | 0.45 |
| FS-TERM-0001 | Terminal Board | Wiring terminal interface | 80 × 100 × 20 | 0.15 |
| FS-SICP-0001 | Sensor Interface | Connects smart sensors to control | 80 × 90 × 30 | 0.20 |
| FS-TDO-1624 | Digital Output Module | 16-channel digital output | 100 × 100 × 40 | 0.33 |
❓ Frequently Asked Questions (FAQ) – FS-TSDI-1648
Q1: What type of inputs can the FS-TSDI-1648 accept?
A1: It accepts 48 V DC digital input signals from field devices such as switches, sensors, and relays.
Q2: Does it support fault detection?
A2: Yes, it features built-in diagnostics to detect open lines, short circuits, or faulty inputs.
Q3: Is the module isolated?
A3: Yes, both channel-to-channel and field-to-system isolation are provided.
Q4: Can this module be used in safety-critical applications?
A4: Yes, it’s designed for safety systems such as SIS and ESD, and typically meets SIL requirements.
Q5: What is the main difference between FS-TSDI-1648 and FS-SDI-1648?
A5: FS-TSDI-1648 includes the FTA (Field Termination Assembly) for easier field wiring and enhanced safety diagnostics.
Q6: Can the module be replaced hot (hot-swap)?
A6: Typically, no. For safety systems, power-down is recommended before replacing FTAs.
Q7: Is it compatible with Honeywell control systems?
A7: Yes, it’s specifically designed to integrate into Honeywell safety control platforms.
Q8: How many input channels does it support?
A8: It supports 16 isolated digital input channels.
Q9: Can it be used in hazardous environments?
A9: Yes, with appropriate enclosure and installation practices, it is suitable for hazardous areas.
Q10: What are the maintenance needs for this module?
A10: Minimal. Occasional inspection for loose terminals or wiring issues is sufficient. Diagnostics help identify problems automatically.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.