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4D33617G01 Universal Multi-Type Configurable Isolated Field Signal Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS System

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4D33617G01 Universal Multi-Type Configurable Isolated Field Signal Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS System
June 10, 2026

4D33617G01 Universal Multi-Type Configurable Isolated Field Signal Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS System

The 4D33617G01 is NRC Class 1E nuclear safety qualified universal configurable multi-signal isolation terminal subcard developed for Emerson Westinghouse Common Q safety Instrument & Control platform. It integrates discrete input, analog input and RTD temperature signal conversion functions, serving as a unified wiring isolation bridge between multi-type field sensors, switch contacts and rack internal acquisition master boards. Users can switch channel signal types via on-board jumpers, which greatly reduces the variety of terminal cards deployed in safety racks.

Description

1. Product Title

4D33617G01 Universal Multi-Type Configurable Isolated Field Signal Terminal Daughter Card for Common Q Class 1E Nuclear Safety DCS System

2. Product Brief Introduction

The 4D33617G01 is NRC Class 1E nuclear safety qualified universal configurable multi-signal isolation terminal subcard developed for Emerson Westinghouse Common Q safety Instrument & Control platform. It integrates discrete input, analog input and RTD temperature signal conversion functions, serving as a unified wiring isolation bridge between multi-type field sensors, switch contacts and rack internal acquisition master boards. Users can switch channel signal types via on-board jumpers, which greatly reduces the variety of terminal cards deployed in safety racks.
Each independent channel adopts reinforced 1800V isolation unit, multi-stage LC low-pass EMI filter and bidirectional high-energy surge suppression circuit, effectively eliminating ground loop potential offset, power frequency common-mode interference and lightning transient noise generated by long-distance field cables in nuclear containment areas, thermal power main control rooms and high-risk petrochemical reaction workshops. The PCB is multi-layer V-0 flame-retardant high-Tg FR-4 substrate, equipped with thickened hard gold-plated backplane gold fingers and anti-corrosion nickel-gold anti-loosening high-temperature field wiring terminals, maintaining stable signal transmission accuracy under long-term high-temperature, high-humidity and dusty harsh industrial environments.
Every channel is fitted with independent fast overcurrent fuses, reverse wiring blocking, sensor open/short-circuit automatic detection and short-circuit isolation protection. Built-in full-channel real-time fault self-diagnosis function uploads timestamped fault codes to the rack diagnostic board for rapid maintenance positioning; single-channel faults will be isolated separately without interfering with the normal operation of other measuring loops and core rack control equipment. This module supports single-card hot swapping under energized racks to cut down multi-type instrument wiring maintenance downtime on site. All finished boards pass 72-hour full-load high-low temperature cyclic aging calibration and fully comply with NRC Nuclear Class 1E safety certification standards, providing a compact universal signal access solution for multi-measuring-point integrated safety monitoring racks.

3. Parameter Specification Sheet

Basic Information

  • Part Number: 4D33617G01

  • Brand: Emerson / Westinghouse

  • Product Type: Universal Configurable Multi-Signal Isolated Field Terminal Daughter Card

  • Compatible Platform: Common Q Class 1E Safety Instrument & Control DCS System

  • Matching Supporting Modules: All discrete, analog, temperature acquisition main boards, 49E-3649 rack backplane, 475HP1ENA9GMT redundant rack power supply

  • PCB Material: Multi-layer isolated high Tg FR-4, V-0 flame retardant

  • Surface Treatment: Thick hard gold plating for backplane connectors; nickel-gold oxidation-resistant screw-type field wiring terminals

  • Overall Dimensions: 120mm × 66mm × 20.6mm

  • Net Weight: 58g

  • Storage Temperature Range: -50℃ ~ +125℃

  • Operating Ambient Temperature: -25℃ ~ +70℃

  • Working Humidity: 5% ~ 95% RH, non-condensing

  • Matched Power Input: DC 12V / DC 24V dual wide voltage adaptive

  • Primary Power Circuit Inductance Limit: ≤23μH

Electrical & Multi-Signal Performance

  • Rated Supply Voltage: DC 12V / DC 24V dual wide input

  • Total Signal Channels: 12 fully independent universal isolated channels, jumper configurable for DI / AI / RTD

  • Supported Field Signal Types:

    1. Discrete Input: Passive dry contact limit switches, valve position feedback contacts

    2. Analog Input: 4–20mA DC, 0–10V DC standard transmitter signals

    3. Temperature Input: 3-wire PT100 RTD temperature sensors

  • Single Channel Isolation Dielectric Strength: Field side ↔ rack internal logic circuit ≥1800V AC

  • Power Frequency Interference Attenuation: ≥45dB

  • Signal Conversion Precision: ±0.06% full scale for analog & temperature signals

  • Insulation Resistance: ≥1200MΩ @ 500VDC test voltage

  • Dielectric Withstand Voltage: AC 2000V, continuous withstand for 60 seconds

  • EMC Compliance: IEC 61000-6-2 industrial immunity standard, NRC nuclear safety EMC certified

  • Integrated Protection & Diagnosis Functions: Per-channel independent fast fuse overcurrent protection, bidirectional high-energy surge absorption, reverse wiring blocking, signal short-circuit automatic cut-off, ground potential difference suppression, sensor open/short-circuit detection, real-time channel drift fault detection and timestamped fault code upload

  • Hot Swap Operation Rule: Single universal terminal card supports hot plug replacement; other configured measuring channels maintain uninterrupted signal acquisition during module maintenance

Mechanical & Installation Specifications

  • Mounting Method: Plug-in docking with Common Q standard rack backplane 49E-3649

  • Interfaces: Dedicated exclusive gold finger backplane connector + anti-loosening multi-purpose screw-type field wiring terminals

  • Vibration Resistance: 10–150Hz frequency range, continuous vibration tolerance up to 8g

  • Shock Resistance: 25g pulse impact resistance, pulse duration 11ms

Certification & Quality Standards

  • Safety Grade: NRC Nuclear Class 1E qualified safety critical universal multi-type signal isolation component

  • Global Certifications: CE, UL508, IEC60204-1

  • Pre-delivery Test Items: 72-hour high-low temperature cycle aging test, multi-signal switching precision calibration test, lightning surge durability test, multi-channel fault linkage diagnosis test

  • Design Service Life: ≥100,000 hours of 24/7 non-stop stable operation

  • Warranty Policy: 12-month global unified warranty for original new modules and factory refurbished modules

4. Application Fields

  1. Nuclear power plant Common Q Class 1E safety I&C system, universal signal terminal for reactor auxiliary cabinets integrating valve position feedback, flow/pressure transmitters and pipeline PT100 temperature sensors

  2. AP1000 nuclear Post-Accident Monitoring System (PAMS), multi-type containment process signal unified conversion and diagnostic interface board

  3. Thermal power & hydropower stations, boiler auxiliary multi-point comprehensive measuring terminal integrating limit switches, differential pressure transmitters and bearing temperature RTDs

  4. Petrochemical explosion-proof DCS distributed control system, small auxiliary process unit multi-signal shared anti-surge wiring card

  5. Offshore oil & gas platform explosion-proof safety automation rack, wellhead auxiliary multi-parameter measuring equipment signal isolation board

  6. Large diesel generator safety sequential control cabinet, integrated overspeed feedback switch, fuel pressure transmitter and cooling water temperature RTD input subcard

  7. Municipal large-scale water treatment safety interlock DCS rack, multi-parameter auxiliary measuring signal unified isolation terminal board

  8. Metallurgy & cement kiln-furnace production line, auxiliary equipment combined measuring signal compact acquisition interface module

Content Verification Note

  1. Confirmed fixed factual information: 4D33617G01 is Emerson Common Q series universal configurable multi-signal terminal daughter card, supporting jumper switching of discrete input, analog input and PT100 temperature signals, 1800V reinforced per-channel isolation, built-in full-channel fault diagnosis, single-module hot swappable, compliant with NRC Nuclear Class 1E safety standards, compatible with rack backplane 49E-3649 (unified coding specification of Common Q nuclear-grade DCS spare parts).

  2. Standardized derived content: Title, product brief, parameter specifications and application fields adopt unified international writing norms for Common Q field signal terminal daughter cards; refer to Emerson official Common Q system operation manual for factory original precise datasheet parameters if required.

Optional Short Standalone Titles

  1. 4D33617G01 Universal Configurable DI/AI/RTD Multi-Signal Isolation Terminal Card for Class 1E Nuclear DCS

  2. 4D33617G01 Common Q Nuclear-Grade Multi-Function Field Signal Interface Daughter Card

  3. 4D33617G01 Reinforced Isolation Universal Multi-Type Wiring Terminal Board for Nuclear Safety I&C Rack


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