Features:
- Mechanical Coding Prevents Mismating
- Per-Channel Fusing for Field Protection
- Hazardous Area Ready (Class I, Div 2 / ATEX Zone 2)
The ICS Triplex T9801 is equipped with factory-assigned coding pegs (positions 2, 1, 1) that align exclusively with digital input modules such as the T9401 and T9402. This polarization mechanism physically prevents the insertion of incorrect module types (e.g., analogue or output modules), eliminating a common source of installation error and reducing system downtime.
Each of the 16 channels on the ICS Triplex T9801 includes a 50 mA time-lag fuse (replaceable via T9901), providing localized overcurrent protection for field wiring loops. This design ensures that a single-channel fault does not cascade to adjacent channels or the backplane, maintaining operational continuity for the remaining 15 channels while troubleshooting occurs.
The ICS Triplex T9801 is certified for installation in Class I, Division 2, Groups A, B, C, D hazardous locations and holds ATEX/IECEx certification (Ex ec IIC T4 Gc). When mounted inside an IP54 tool-accessible enclosure, it operates reliably in environments with flammable gases or vapors, making it ideal for oil & gas platforms, refineries, and chemical plants.
The T9801 ICS Triplex Digital Input Termination Assembly, Simplex may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
ICS Triplex T9801 Digital Input Termination Assembly, Simplex Manuals,Datasheets,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.
ICS Triplex T9801 Digital Input Termination Assembly, Simplex
General
- Manufacturer ICS Triplex
- Model T9801
- Condition New Original ready stock
- Product Family T9802,T9803,T9831
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.
- No Onboard Firmware – Passive Design:The ICS Triplex T9801 contains no microprocessor, memory, or firmware. Therefore, it never requires firmware updates or security patches, eliminating a common lifecycle management burden for safety systems. All intelligent functions reside in the mated T9401/T9402 input module.
- ControlFLASH Not Applicable:Unlike processor modules (e.g., T9110), the ICS Triplex T9801 is not programmable and does not appear in RSLinx or ControlFLASH device trees. Its replacement is purely mechanical/electrical — no configuration download is needed after installation.
- Compatible with AADvance Workbench 1.x, 2.x, and Trusted SIS Workstation:Although the ICS Triplex T9801 itself has no firmware, it is fully compatible with all AADvance software releases (1.x, 2.x, and AADvance-Trusted SIS Workstation). The I/O configuration editor in these software tools recognizes the T9801 when paired with a T9401/T9402 module during hardware mapping.
- No Version Tracking Required:Because the ICS Triplex T9801 lacks firmware, there are no revision compatibility issues between the termination assembly and the controller. Stock management is simplified — any T9801 unit works with any AADvance digital input module of the correct type, regardless of production date.
- Channel Status via I/O Module LEDs:The ICS Triplex T9801 does not have onboard indicators. Instead, the mated digital input module (T9401/T9402) provides front-panel LEDs per channel: GREEN (input ON), OFF (input OFF), AMBER (field wiring fault), or RED (channel fault). Operators can quickly localize a problem to a specific field loop without opening the enclosure.
- Diagnostic Variables in AADvance Workbench:Using the ICS Triplex T9801 within a configured I/O channel, the AADvance Workbench software exposes diagnostic variables such as “Channel Fault,” “Field Fault,” and “No Load.” These variables can be mapped to operator workstations or logged for predictive maintenance — e.g., tracking intermittent open circuits in field wiring.
- Line Monitoring for Open/Short Detection:When external resistors (R1=15kΩ, R2=3k9) are added to the field loop, the ICS Triplex T9801 enables the T9401/T9402 module to distinguish between four states: Open Circuit, OFF (nominal 8V), ON (nominal 16V), and Short Circuit. This enhanced diagnostics capability is essential for ESD systems where wiring integrity must be continuously verified.
- Backplane Current Monitoring:The ICS Triplex T9801 draws only 6.5 mA from the T9300 backplane, contributing minimally to system power load. However, the AADvance system’s health variable “System Power Status” can indirectly reflect issues with the backplane supply (18-32 Vdc range) that would affect the T9801 and all termination assemblies on the same I/O bus.
- Emergency Shutdown (ESD) Systems:The ICS Triplex T9801 terminates field wiring from emergency stop pushbuttons, pressure switches, and solenoid status contacts. In a de-energize-to-trip configuration, it ensures that loss of field power drives the process to a safe state, meeting IEC 61511 requirements for high-integrity shutdowns.
- Fire & Gas (F&G) Detection Systems:When paired with volt-free contacts from flame detectors, gas sensors, or manual call points, the ICS Triplex T9801 provides reliable signal termination for fire alarm logic. The per-channel 50 mA fuse prevents wiring shorts from disabling an entire zone, preserving system availability during fire events.
- Burner Management Systems (BMS):In boiler and furnace control, the ICS Triplex T9801 connects limit switches, flame safeguard relays, and purge proof switches. Its hazardous area certification (Class I Div 2) allows direct installation near combustion equipment when housed in an appropriate IP54 enclosure.
- Pipeline & Remote Valve Monitoring:For remote valve position feedback (open/closed limit switches), the ICS Triplex T9801 offers a compact 16-channel termination solution that reduces panel wiring complexity. Its -40°C to +70°C storage range supports outdoor skid-mounted installations in extreme climates.
