ICS Triplex T8403 Trusted TMR 24 Vdc Digital Input Module

The T8403 Digital Input Module is part of the ICS Triplex Trusted system, offering Triple Modular Redundancy (TMR) and robust digital input capabilities for demanding industrial environments.

Specifications

Electrical Characteristics

• Backplane (IMB) Supply:
  • Voltage: 20 Vdc to 32 Vdc
  • Power: 20 W
• Maximum Power Dissipation: 29 W
• Field Supply: N/A
• Input Impedance: 5 kΩ
• Measurement Range: -6 Vdc to +36 Vdc
• Thresholds: Configurable
• Maximum Withstanding Voltage: ±50 Vdc
• Safety Accuracy: 0.5 Vdc

Input Details

• Number of Inputs: 40
• Channel-to-Channel Isolation: None
• Functional-to-Protective Earth Isolation: 500 Vdc (minimum)
• Functional-to-Functional Earth Isolation: 800 Vdc (minimum)

Sequence of Events (SOE)

• Event Resolution (LSB): 1 ms
• Time Stamp Accuracy: ±10 ms

Environmental Compliance

• Operating Temperature: 0 °C to +60 °C (+32 °F to +140 °F)
• Storage Temperature: -25 °C to +70 °C (-13 °F to +158 °F)
• Humidity (Operating/Storage): 10% – 95%, non-condensing

Dimensions & Physical Properties

• Height: 266 mm (10.5 in)
• Width: 31 mm (1.2 in)
• Depth: 303 mm (12.0 in)
• Weight: 1.18 kg (2.6 lb)

Environmental Specifications

• Vibration:
  • 5–8.4 Hz: 3.5 mm
  • 8.4–150 Hz: 1g
• Shock: 15 g, 11 ms

EMC Immunity & Emissions

• Radiated & Conducted Emissions: CISPR 11, Class A (up to 6 GHz)
• ESD Immunity:
  • ±6 kV (contact)
  • ±8 kV (air)
• Radiated RF Immunity:
  • 10 V/m (80 MHz–2.7 GHz, 1 kHz 80% AM sine)
  • 3 V/m (2.7 GHz–6 GHz, 1 kHz 80% AM sine)

Transient & Surge Protection

• EFT/Burst Immunity:
  • D.C. Power: ±4 kV
  • A.C. Power (Field): ±4 kV
  • I/O & Communication: ±1 kV
  • Functional Earth: ±2 kV
• Surge Immunity:
  • D.C. Power: ±4 kV (line-earth); ±2 kV (line-line)
  • A.C. Power: ±4 kV (line-earth); ±2 kV (line-line)
  • I/O & Communication: ±2 kV (line-earth)

Conducted RF Immunity:

• Range: 150 kHz–100 MHz, 10 V rms (1 kHz sine, 80% AM)

Reliability & Certifications

• Isolation: 50 V Reinforced (continuous); 250 V Basic (fault-rated, tested at 2436 Vdc for 60 s).
• Intrinsic Safety: Requires external barriers.
• Compliance: Tested to IEC 60068 and IEC 61000 standards for temperature, vibration, and EMC immunity.

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