ICS Triplex T8312 | DIP-Switch Configurable Expander

Product Overview

The ICS Triplex T8312 Expander Interface Adapter bridges the Trusted TMR controller chassis to remote expansion chassis. It enables seamless communication between the processor and distributed I/O racks, supporting system scalability across large process facilities. This adapter maintains full TMR integrity while extending the I/O footprint.

Configuration Options

The T8312 is available in two variants. The T8312/4 supports up to four expansion chassis, while the T8312/7 accommodates up to seven. Each adapter connects expander interface modules in the controller chassis to processor interface modules in remote expansion racks. For systems requiring more than seven expansion chassis, deploy an additional adapter with expanded chassis IDs.

Technical Specifications

DIP Switch Setup

Configure the DIP switches to assign chassis IDs. Set the controller chassis to ID #1. For the first expansion set, assign expander chassis IDs from 2 through 8. When adding a second adapter for additional expansion racks, set its expander chassis IDs also from 2 to 8, then map them as IDs 9 to 15 within the system software. This addressing scheme ensures clear identification of each expansion chassis in the Trusted TMR architecture.

Installation Guide

Mount the T8312 in the controller chassis adjacent to the processor module. Secure the adapter with the provided retaining screws. Connect the expander interface cables to the front-panel ports, ensuring proper locking. Verify DIP switch settings before power-up. After installation, configure the expander chassis mapping in the Trusted system software to enable communication with remote I/O racks.

Engineering Advantages

The T8312 delivers scalable expansion capacity with two variants to match system requirements. Its passive design requires no external power supply, simplifying installation. ATEX and IECEx certifications qualify the adapter for deployment in hazardous locations. The flexible DIP switch addressing supports complex multi-chassis architectures while maintaining clear identification for maintenance and troubleshooting.

Technical FAQs

Q1: Can I mix T8312/4 and T8312/7 adapters in one system?
A1: Yes. Each adapter connects to a separate set of expansion chassis. Assign unique chassis ID ranges and configure them in the system software accordingly.

Q2: How do I set IDs for a second adapter's expansion chassis?
A2: Set the physical DIP switches from 2 to 8, then map these as IDs 9 to 15 in the software configuration tool. The controller chassis remains ID #1.

Q3: Does the T8312 require configuration software?
A3: Yes. After DIP switch settings are applied, configure the expansion chassis mapping within the Trusted system software to enable proper communication.