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We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for T7481
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Product ModelT7481
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Product ParametersMonitored Guarded Output Module
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Tariff Code8537101190
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Country of originUSA
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size3.3x26.4x32.7cm
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ManufacturerICS Triplex
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Weight1 kg
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Output Channels16 guarded outputs
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Output Voltage24 V DC nominal
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Isolation VoltageMinimum 2500 V between
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Operating Temperature0 °C to +60 °C
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Storage Temperature–40 °C to +85 °C
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Humidity5 % to 95 % RH, non-condensing
Description
The ICS Triplex T7481 is a monitored guarded digital output module manufactured by ICS Triplex under Rockwell Automation. It is built for the Trusted safety system platform and is compatible with Regent and Regent+Plus low-density I/O configurations. The module provides 16 channels of 24 V DC guarded outputs with integrated line monitoring and fault detection. It is certified to DIN 19250 / AK5 and TÜV Risk Class 5, making it suitable for safety instrumented systems (SIS), emergency shutdown (ESD), and fire and gas applications in oil and gas, petrochemical, and power generation facilities.
Control data reaches the module through a triplicated Safetybus interface. Three independent data streams are routed to separate voter circuits, which then feed FPGAs that manage the output switches. This voting mechanism prevents any single system-level fault from inadvertently applying power to a field device.
Control data reaches the module through a triplicated Safetybus interface. Three independent data streams are routed to separate voter circuits, which then feed FPGAs that manage the output switches. This voting mechanism prevents any single system-level fault from inadvertently applying power to a field device.
Revisions
Revision Part #
Also known as
Alternative Names
T748i
T748I
T7A81
Information
Overview
Manuals
Application Notes
Product Applications
Wiring & Field Terminations
Features:
- Monitored Guarded Digital Output Module
- Trusted TMR
- 24 V DC nominal
The module performs automatic line monitoring on each output circuit. Diagnostic circuitry injects low-level test pulses into the field wiring to detect open-circuit and short-circuit conditions without actuating the load. When a wiring fault or blown fuse occurs, the module reports the condition through front-panel indicators and system status registers. Individual LEDs display module fault/active state, shutdown status, and per-point output and load/fuse fault conditions. Fuses are accessible from the front panel for maintenance.
The T7481 ICS Triplex Monitored Guarded Output Module may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
ICS Triplex T7481 Monitored Guarded Output Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Configuration Modes: Supports either single-module fail-safe (1oo1) configurations or dual-module fault-tolerant (2oo2) configurations.
Safety & Fault Tolerance: Certified for "de-energize to trip" configurations. It can also be used in "energize to trip" applications under strict conditions defined by system architecture
Error Handling & Latching: Application logic must force outputs to a safe state upon error detection. Failed outputs require error bit latching, which dictates a manual reset only after the fault is cleared.
- Oil & Gas and Refining:Safeguards high-pressure volatile processes
- Power Generation:Emergency trip & boiler/nuclear auxiliary controls
- Chemical and Petrochemical Processing:Strict "de-energize to trip" safety
- Burner Management Systems (BMS):Safety shutoff valves for furnaces/boilers
- Fire and Gas Systems (FGS):Deluge, alarms & chemical suppression
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Termination Assembly: Terminate field device wiring to the designated termination assembly, checking that all loops match polarity requirements.
Shielding: Use shielded cables for field I/O connections to reduce electromagnetic interference (EMI).
Grounding: Terminate all cable shields directly to the system reference ground at the designated cabinet entry point.
Technical notes
The T7481 is deployed in safety-critical control loops where output integrity and fault containment are mandatory. Typical applications include emergency shutdown valve solenoid control, burner management system actuation, fire and gas release circuits, and reactor protection interlocks. The module operates within Trusted TMR chassis alongside processors such as the T8110 or T8110B and interfaces directly to 24 V DC field devices.
FAQs
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What is the T7481?
+The ICS Triplex T7481 is a guarded monitored digital output module designed for critical safety and fault-tolerant industrial applications. -
What is the function of the T7481?
+It provides fail-safe, fault-tolerant operations by supplying a 24V DC output. It constantly performs dynamic output transition monitoring to detect faults before they escalate. -
What does dynamic output transition mean?
+To ensure safety and detect faults, outputs must transition between logic states (e.g., 0 → 1 → 0 or 1 → 0 → 1) at regular intervals. This cycle must not exceed the Safe Failure Operating Cycle (SFOC).
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