Configured for protecting unused I/O positions in the Trusted TMR safety controller platform, the ICS Triplex T9191 (T9191 Blanking Cover) provides direct physical enclosure. The ICS Triplex T9191 also preserves airflow across the chassis, shields vacant terminal positions from contamination, and maintains the mechanical configuration of the Trusted backplane without introducing electrical connections or field wiring.
Suffix Breakdown & Model Matrix
The supplied documentation identifies T9191 as a single catalog number. No official suffix variations or ordering matrix are defined in the available technical information.
Hardware Specifications
Parameter
Specification
Model
T9191
Brand
ICS Triplex
Product Type
Blanking Cover (Tall)
Series
Trusted TMR
Application
Protection of unused I/O positions without Terminal Assemblies (TA)
Material
ABS plastic
Color
Gray
Origin
USA
Dimensions
85 mm x 25 mm x 15 mm
Weight
Approx. 60 g
Operating Temp
-20 deg C to 70 deg C
Protection Class
IP20
Flammability Rating
UL 94 V-0
Power Consumption
None (passive mechanical component)
Mounting Method
Installed in vacant Trusted chassis positions
TMR Mechanical Integrity for Safety Systems
The Trusted TMR platform applies a triple modular redundancy (TMR) 2oo3 architecture for safety-related control functions. Although the T9191 contains no active electronic circuitry, it contributes to the mechanical integrity of the chassis by covering unused module locations. Consequently, the cover helps maintain the intended airflow path inside the enclosure while reducing dust accumulation around adjacent safety modules and terminal assemblies. Furthermore, it preserves the physical layout specified for Trusted system assemblies and supports maintenance practices that keep unused slots protected until future expansion.
Frequently Asked Questions
Q: Does the T9191 contain any electrical or communication circuitry? A: No. The T9191 is a passive mechanical cover. It provides physical protection only and does not interface with the Trusted backplane or field wiring.
Q: Can the T9191 remain installed permanently in an unused slot? A: Yes. It is intended to occupy vacant positions where no Terminal Assembly or compatible module is installed, thereby maintaining the enclosure configuration.
Q: Does installation of the T9191 require system configuration or firmware updates? A: No. Since the component contains no electronic functions, installation does not affect controller configuration, firmware compatibility, or system diagnostics.
Field Installation Guidelines
Verify that the designated position is intended to remain unused before installing the cover.
Remove loose debris from the chassis opening before fitting the blanking cover.
Seat the cover completely to prevent gaps that may allow dust ingress.
Do not route field cables through or around the blanking cover location.
Replace the cover with the appropriate Terminal Assembly only after system maintenance procedures have been completed and power isolation requirements have been satisfied.
Inspect adjacent module retaining mechanisms after installation to confirm that normal airflow paths remain unobstructed.
