Product Overview

The Honeywell FS-TERIM-0002 is a high-performance active bus terminator engineered to maintain signal purity within high-speed industrial communication networks. In complex Distributed Control Systems (DCS), signal reflections and impedance mismatches can lead to data corruption or system timeouts. The FS-TERIM-0002 addresses these challenges by providing active impedance matching, effectively "cleaning" the communication bus and ensuring that high-frequency data transmissions remain stable over long cable runs or in high-node-count architectures.

Operating across a broad bandwidth from DC to 500MHz, this module is an essential component for critical infrastructure. It utilizes active circuitry to provide a precise $100\Omega$ termination, which is significantly more effective at suppressing signal noise and common-mode interference than traditional passive resistors. Designed for the Honeywell FS Series, it ensures the deterministic performance required for safety-related and mission-critical automation loops.

Technical Characteristics and Performance

• Active Impedance Matching: Features a nominal impedance of $100\Omega \pm 1\%$, specifically designed to minimize signal reflection (measured below -30dB at 1GHz) for superior data integrity.

• Broad Frequency Response: Supports clean signal transmission across an expansive bandwidth reaching up to 500MHz, making it compatible with modern high-speed industrial Ethernet and fieldbus protocols.

• Superior Noise Immunity: Delivers excellent common-mode rejection exceeding 40dB at 100MHz, shielding the communication bus from EMI/RFI interference prevalent in heavy industrial environments.

• System Isolation and Safety: Provides 500V DC galvanic isolation between the communication bus and the backplane logic, preventing ground loops and protecting sensitive control hardware.

• Ultra-Low Power Consumption: Efficiently powered by the system backplane with a minimal current draw of only 15mA at 24V DC.

• Extreme Environment Resilience: Engineered to function reliably in temperatures ranging from -40°C to +85°C and withstand vibrations up to 5g (10-500Hz).

• High-Humidity Tolerance: Rated for operation in environments with 5% to 95% relative humidity, including condensing conditions, suitable for outdoor enclosures or unconditioned plant floors.

Technical Specifications

• Manufacturer: Honeywell

• Model Identification: FS-TERIM-0002

• Module Type: Active Bus Terminator

• Nominal Impedance: $100\Omega \pm 1\%$

• Frequency Range: DC to 500MHz

• Isolation Voltage: 500V DC

• Operating Voltage: 24V DC (Backplane powered)

• Power Consumption: 15mA

• Operating Temperature: -40°C to +85°C

• Storage Temperature: -50°C to +100°C

• Weight: 0.2kg (Net) / 0.4kg (Shipping)

• Dimensions: 7 x 14 x 14.5 cm

• HS Code: 8537101190

Industrial Application Areas

• High-Speed Data Highways: Ensuring signal stability in fiber-optic or copper-based Ethernet backbones within a DCS.

• Safety Instrumented Systems (SIS): Maintaining the communication integrity required for SIL-rated safety loops where signal failure is not an option.

• Remote I/O Networks: Supporting reliable data exchange between a central controller and remote modules located in electrically noisy areas.

• Infrastructure Automation: Used in power distribution, water treatment, and transit systems where equipment is exposed to extreme temperatures and vibration.