Product Summary
The T9402 digital input module provides precise 24 Vdc signal acquisition for critical safety systems. It supports simplex, dual, and triple configurations. This unit processes 16 isolated channels with a maximum scan time of 2.453 ms in triple mode. Engineers trust this module for high-integrity industrial control applications.
Expert Technical Evaluation & Performance Review
The T9402 module operates within a back-plane voltage range of 18 to 32 Vdc. It draws a maximum current of 260 mA from the system bus. This power consumption ensures stable operation under heavy load conditions. The module dissipates exactly 4.0 W of power as heat. This thermal output equals 13.6 BTU per hour. Your cabinet cooling system must handle this dissipation effectively. The unit weighs precisely 340 grams or 12 ounces.
The input circuitry accepts a voltage range from 0 to 32 Vdc. It draws 6.5 mA per channel during normal operation. This current rating guarantees reliable signal detection across long cable runs. The module performs a full scan in just 0.924 ms when configured for simplex operation. Dual configuration increases scan time to 1.676 ms. Triple modular redundancy extends this to 2.453 ms. These scan times enable fast fault detection and system response.
You must match the input voltage to your field sensor specifications. The 24 Vdc nominal rating aligns with standard industrial proximity switches. The isolated channel design prevents ground loop interference between sensors. This isolation protects the back-plane from voltage spikes on input lines. Your system benefits from reduced noise and higher signal integrity.
Product Procurement & Buyer Guide
Procurement teams must verify the module revision before ordering. The T9402 model replaces older non-isolated variants in safety loops. This module requires a compatible ICS Triplex back-plane for proper communication. The back-plane supplies power and data transfer to the module. You need to confirm your existing chassis supports this specific model.
Application engineers should calculate total power budget for the rack. Each T9402 module consumes 4.0 W during active operation. A fully populated rack with eight modules draws 32 W of power. Your power supply must accommodate this load plus additional margin. The 260 mA current draw per module affects your overall system current budget.
The 16-channel density reduces the number of modules needed for large systems. This consolidation saves valuable rack space and reduces wiring complexity. You achieve higher channel count per slot compared to 8-channel alternatives. The isolated inputs allow mixing of different sensor types on one module. This flexibility simplifies your I/O mapping and reduces spare parts inventory.
Logistics & Standard Packaging Details
- One ICS Triplex T9402 digital input module
- Protective anti-static packaging for safe transit
- Product documentation and handling guide
- Express delivery shipping available via FedEx, UPS, and DHL
