T8403 Trusted Triple Redundancy (TMR) Expansion Interface Module

Description

T8403 is Tricon from ICS Triplex company ® The Trusted Triple Redundancy (TMR) extension interface module in security systems is designed specifically for critical control applications. As a key component in distributed control architecture, it serves as a field device and Tricon ® The bridge between controllers provides triple module redundancy for input and output. This design ensures that each signal is processed through three independent channels, and the built-in diagnostic function can detect and isolate faults without interrupting system operation.

T8403

For engineers and security integrators, T8403 can be seamlessly integrated into existing Tricon systems ® Simplify the transformation and expansion process in the system. Its hot swappable design allows for maintenance without interrupting operation, which is crucial for 24/7 industrial environments. This module is compatible with ICS Triplex’s Safety Instrumented System (SIS) software, allowing for intuitive configuration of voting logic, diagnosis, and fault safety actions, reducing programming complexity while ensuring compliance with ISO 13849 and IEC 61508 standards.

T8403

Main features and advantages:
The core advantage of T8403 lies in its triple redundant architecture, which provides three independent signal paths for each channel. This design achieves a hardware fault tolerance (HFT) of 1, meaning that the module can withstand a single channel failure without losing functionality. Each channel is equipped with a self diagnostic function that can detect short circuits, open circuits, and voltage anomalies, and provide real-time alarms through the system’s human-machine interface (HMI).

In terms of hardware, the module adopts a sturdy aluminum alloy shell, suitable for harsh environments (-40 ° C to 70 ° C), and supports DIN rail installation for quick deployment. Its low-power design (usually<10W) reduces heat generation, while fanless passive cooling ensures reliability in enclosed control cabinets. T8403 supports multiple I/O types, including analog input (4-20 mA, ± 10V), digital input/output, and thermocouple/RTD sensors, suitable for diverse field applications.

In terms of connectivity, the module is connected to Tricon through a high-speed backplane ® Controller communication ensures deterministic data transmission with latency below milliseconds. It complies with IEEE 1149.1 (JTAG) hardware testing standards and ANSI/ISA 84.00.07 security system interoperability standards, further enhancing reliability in multi vendor environments.

T8403

Technical specifications:
Model T8403
Brand ICS Triplex
Trusted TMR Extension Interface Module of Type
Power supply 24 VDC (± 15%), supports redundant inputs
Working temperature -40 ° C to 70 ° C
Installation method DIN rail (TS35/7.5 or TS35/15) with quick release clamp
Dimensions 171 mm (height) x 48 mm (width) x 203 mm (depth)
Weight 0.9 kg
I/O channel 16 channels (configurable as AI, DI, AO, DO, TC, RTD)
TMR (Triple Modular Redundancy) redundancy method, using 2oo3 voting logic
Certified SIL 3 (IEC 61508), PL e (ISO 13849), ATEX, IECEx, CSA, CE
Environmental protection level IP20 (front panel), IK08 (impact resistance)
Passive heat dissipation method (fanless)

Contact Us
Phone:+86 16626708626
WeChat/WhatsApp:+86 16626708626
Email: 3772179818@qq.com

T8403

Application areas:
In offshore platforms, T8403 is responsible for managing the Emergency Shutdown System (ESD) to ensure rapid response in the event of leaks or fires, while maintaining system integrity even in the event of component failures. In pharmaceutical production, it protects the sterile production environment and avoids any deviations that may affect product safety and compliance by controlling key common systems such as steam sterilization (SIP) and cleaning in place (CIP).

T8403 also plays a key role in transportation infrastructure, such as the subway signal system, ensuring fault safety control for train operation and platform safety. Its multi-sensor redundant input processing and voting logic capabilities make it an ideal choice for SIL 3 certified Safety Instrumented Systems (SIS). By eliminating single point of failure, T8403 significantly reduces unplanned downtime in industries such as mining, ensuring the continuous operation of conveying systems and heavy machinery is crucial for production.

T8403

Related products:
T8401- TMR system analog input module, designed for high-precision process control optimization.
T8402- Digital input module with surge protection, suitable for noisy industrial environments.
T8404- Relay output module, suitable for fail safe parking applications.
T8451- High speed analog output module, suitable for motion control or valve positioning.
Tricon CX – Main controller module, compatible with T8403, supports expandable security systems.
T8300 series – old version extender, used to retrofit early Tricon ® System.

Installation and maintenance:
Precautions before installation:
Ensure that the control cabinet has sufficient ventilation to maintain the ambient temperature within the operating temperature range of the module.
Simulate signals using shielded twisted pair cables and separate power and control circuits to reduce electromagnetic interference (EMI).
Verify the backplane and Tricon ® Compatibility of the controller and ensuring correct grounding (grounding resistance<100 Ω).
Maintain best practices:
Perform visual inspections every quarter to check for loose or corroded connections, especially in humid or corrosive environments.
Using Tricon ® The Configurator software checks channel diagnostic information and updates firmware during planned downtime.
When hot plugging, make sure to turn off the module power before replacing the I/O terminals to avoid the risk of arcing.
Reserve backup modules in critical applications to reduce mean time to repair (MTTR).

Other product models of ICS brand:
ICS T8310
ICS TRIPLEX T9100
ICS T8231
ICS T8461
ICS TRIPLEX T8403C
ICS T8472C
ICS TRIPLEX T8110B
ICS TRIPLEX T8461
ICS TRIPLEX T8480
ICS TRIPLEX T8442
ICS T8111C
ICS TRIPLEX T8110C
ICS T8231 with power fan
ICS TRIPLEX T8310
ICS TRIPLEX T8191
ICS TRIPLEX T8431
ICS TRIPLEX T9482
ICS TRIPLEX T9110
ICS TRIPLEX T8310
ICS TRIPLEX T8431
ICS TRIPLEX T8403
ICS TRIPLEX T8461
ICS Triplex T8231C
ICS T8111C
ICS T3481A
ICS T8151C
ICS T8403C
ICS T8431
ICS T8431C