T9882
May 15, 2026

T9882

The T9882 is an 8‑channel, dual‑redundant, isolated analog output termination assembly for the AADvance T9000 Safety Instrumented System (SIS). It provides the electrical interface between the T9482 dual‑redundant analog output module and 4–20 mA / 0–10 VDC field devices (control valves, positioners, indicators). T9882 is the dual‑redundant (fault‑tolerant) version of T9881 (simplex), designed for SIL 3 safety loops where high availability and fault tolerance are required. It supports dual independent signal paths for each channel.

Description

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1. General Description

The T9882 is an 8‑channel, dual‑redundant, isolated analog output termination assembly for the AADvance T9000 Safety Instrumented System (SIS). It provides the electrical interface between the T9482 dual‑redundant analog output module and 4–20 mA / 0–10 VDC field devices (control valves, positioners, indicators).
T9882 is the dual‑redundant (fault‑tolerant) version of T9881 (simplex), designed for SIL 3 safety loops where high availability and fault tolerance are required. It supports dual independent signal paths for each channel.

2. Key Features

  • 8 analog output channels, dual‑redundant (fault‑tolerant)

  • Channel‑to‑channel isolation and backplane‑to‑field isolation

  • Designed for direct use with T9482 (8‑Ch Analog Output Module, Dual‑Redundant)

  • Signal ranges: 4–20 mA (default), 0–20 mA, 0–10 VDC

  • 1500 VDC isolation (backplane ↔ field, 1 minute withstand)

  • Per‑channel ESD/surge protection and EMI filtering

  • Screw terminals for field wiring (16 AWG max)

  • Conformal coated PCB for harsh industrial environments

  • Hot‑swap compatible (online replacement)

  • SIL 3 certified per IEC 61508 (system level)


3. Electrical Specifications

Analog Output (per channel)

  • Number of Channels: 8

  • Redundancy: Dual‑redundant (fault‑tolerant)

  • Isolation: Channel‑to‑channel & backplane‑to‑field isolated

  • Current Ranges: 4–20 mA, 0–20 mA

  • Voltage Range: 0–10 VDC

  • Resolution: 12 bits

  • Accuracy: ±0.1% of full scale (25 °C)

  • Load Impedance (mA): ≤ 600 Ω

  • Source Impedance (V): ≤ 100 Ω

  • Loop Power: 24 VDC, external or internal

  • Isolation Voltage: 1500 VDC (1 min)

Protection & Filtering

  • Surge: TVS diode per channel

  • EMI/RFI: Low‑pass filter per channel

  • Fault Detection: Open/short‑circuit (via T9482 diagnostics)

Backplane Interface

  • Supply Voltage: 18–32 VDC

  • Maximum Current: 250 mA

  • Power Dissipation: ≤ 3 W


4. Mechanical Specifications

  • Form Factor: Single‑width 6U Termination Assembly (AADvance standard)

  • Dimensions (W × H × D): 132 mm × 42 mm × 22 mm

  • Weight: Approximately 140 g

  • Terminals: Screw‑type (field wiring, 6 mm strip length)

  • Mounting: T9300 I/O Base or T9100 System Chassis

  • Cooling: Natural convection


5. Environmental Specifications

  • Operating Temperature: −40 °C to +70 °C

  • Storage Temperature: −40 °C to +85 °C

  • Humidity: 5% to 95% RH, non‑condensing

  • Pollution Degree: PD2

  • Protection: Conformal coated PCB

  • Enclosure Rating: IP20


6. Safety & Approvals

  • Safety Standard: IEC 61508

  • Safety Integrity Level: SIL 3 (system‑level certified)

  • Approvals: CE, UL, CSA, ATEX, IECEx, TÜV, CCC


7. Compatibility & Ordering Information

Compatible Modules

  • T9482: 8‑Channel Analog Output Module, Dual‑Redundant

  • T9300: 3‑Way I/O Base Unit

  • T9100: AADvance System Chassis

Ordering Codes

  • T9882: 8‑Ch Analog Output TA, Dual‑Redundant, Isolated

  • T9482: 8‑Ch Analog Output Module, Dual‑Redundant

  • T9300: I/O Base, 3‑Way


8. Typical Application

  • SIL 3 safety instrumented systems

  • Emergency Shutdown (ESD) critical analog outputs

  • Fire and Gas (F&G) analog control loops

  • Critical process control valves and positioners

  • High‑availability analog loops requiring fault tolerance


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