Products Description
ICS TRIPLEX T9802 (9802) 16-Channel Digital Input Termination Assembly in stock
ICS TRIPLEX T9802 (commonly named 9802) is a 16-channel digital input termination assembly for AADvance safety instrumented system. It serves as the field signal terminal interface for T9401/T9402 digital input modules, accepting 24VDC discrete field signals and providing galvanic isolation between field wiring and safety I/O cards.


This termination unit supports dual redundant signal path design with high voltage isolation protection. It uses pluggable screw terminal blocks for convenient field wiring and hot-swap maintenance. It is IEC 61508 SIL3 certified hardware. It is legacy spare part, used for maintenance and retrofit of existing AADvance safety systems.
Main Specifications
| No. | Item | Parameter |
|---|---|---|
| 1 | Brand | ICS TRIPLEX (Rockwell Automation) |
| 2 | Model | T9802 (9802) |
| 3 | Module Type | Digital Input Termination Assembly (TA) |
| 4 | Compatible System | AADvance SIS, works with T9401 / T9402 DI modules |
| 5 | Channels | 16 digital input channels, 24VDC |
| 6 | Isolation | 1500Vdc galvanic isolation per channel |
| 7 | Operating Temperature | -40℃ ~ +70℃ |
Core Functions
| No. | Function Description |
|---|---|
| 1 | Terminate 16-channel 24VDC discrete digital input signals from field sensors |
| 2 | High galvanic isolation to protect safety I/O modules from field surge interference |
| 3 | Dual redundant signal path interface for T9401/T9402 digital input modules |
| 4 | Pluggable screw terminal blocks for fast field wiring and module replacement |
| 5 | Transmit field discrete status to AADvance safety controller via I/O backplane |
Application Scenarios
| No. | Application |
|---|---|
| 1 | Oil & gas refinery and pipeline SIL3 safety instrumented system |
| 2 | Power plant boiler, turbine emergency trip safety interlock system |
| 3 | Chemical plant reactor fire & gas protection and shutdown control |
| 4 | High-risk industrial process safety monitoring discrete signal interface |
| 5 | Existing AADvance safety system spare replacement and retrofit project |
FAQ
| No. | Question & Answer |
|---|---|
| 1 | Q:What is ICS TRIPLEX T9802 (9802)? A:It is 16-channel digital input termination assembly for AADvance SIS. It provides field wiring terminals and isolation protection for T9401/T9402 digital input modules, collecting 24VDC discrete safety signals. |
| 2 | Q:What is the relationship between T9802 and T9402? A:T9402 is the digital input I/O module installed on the rack backplane. T9802 is the external termination assembly, connected between T9402 and field sensors to isolate and terminate field wiring. |
| 3 | Q:Is T9802 still in production? A:ICS Triplex AADvance series T9802 has been discontinued. Available stock is surplus or refurbished spare parts for maintenance of old SIL3 safety instrumented systems. |