ICS TRIPLEX T8800 1092330000 Trusted Field Termination Assembly

Configured for discrete field signal interfacing in Trusted Safety System platforms, the ICS Triplex T8800 (T8800 Field Termination Assembly) provides direct physical/electrical execution. The stainless steel hardware unit serves as the primary routing link between 2-wire digital field devices and the downstream Trusted TMR 24 VDC Digital Input Module T8403, distributing up to 40 channels of signal data per block.

Hardware Specifications

Triple Modular Redundant Safety Control

• Triple Modular Redundant (TMR) 2oo3 Architecture Routing: The termination assembly acts as the physical terminal bed that splits single field contact inputs into redundant signal branches. It maintains full signal path separation to feed the isolated input circuits of the companion T8403 digital card, allowing the host system to run continuous triple modular redundant (TMR) 2oo3 voting routines without individual loop latency.
• Fail-Safe State Execution Environment: Featuring an IP67-rated stainless steel enclosure, the module isolates connection terminal screws from dust, water ingress, and atmospheric corrosion. This environmental protection prevents external leakage currents from mimicking a high logic state, ensuring that true field switch openings propagate without distortion to trigger a clean fail-safe state execution in the controller registers.

Frequently Asked Questions

Q: How do the 2 GB RAM and 16 GB Flash memory spaces operate on a passive-style FTA layout?

A: The T8800 incorporates local processing intelligence to handle distributed protocol diagnostics (Modbus, TCP/IP, Ethernet/IP) directly at the termination boundary. The 16 GB flash and 2 GB RAM store localized event logs, communication configuration parameters, and channel identity tables independent of the main controller backplane processor.

Q: Can field devices be rewired on the T8800 while the 24 VDC link loops are actively powered?

A: While the rugged construction and solid-state logic withstand hot-reconnection, field wires should not be disconnected in explosive or hazardous zones due to the risk of localized electrical arcing across the 2-wire terminals. Always isolate the primary loop supply before updating terminations to ensure site safety.

Field Installation Guidelines

• Chassis Layout Alignment, Clearance Constraints, and Mechanical Seating: Snap the stainless steel housing squarely onto a standard 35 mm metallic DIN rail inside the enclosure. Ensure the integrated grounding clips on the rear base engage tightly with the rail surface to form a continuous structural ground bond. Maintain a minimum 30 mm wire-routing clearance along the front faces to accommodate field wire terminal positioning.
• Conductor Separation, Wireway Constraints, and Shield Grounding: Route all 2-wire digital input pairs into separate low-voltage wire trays, ensuring separation from heavy three-phase AC mains and variable frequency drive output cables. Terminate individual instrument shields or cable drain wires to the designated earth terminals on the assembly base, directing transient electromagnetic noise away from the high-speed communications bus.