4A07587G01 Standard Isolated 16-Channel Analog Input Terminal Daughter Card for Common Q Class 1E Nuclear DCS System_Ningde Androld Automation Equipment Co.,Ltd.

June 10, 2026

4A07587G01 Standard Isolated 16-Channel Analog Input Terminal Daughter Card for Common Q Class 1E Nuclear DCS System

The 4A07587G01 is NRC Class 1E safety-qualified standard analog input signal isolation terminal subcard designed for Emerson Westinghouse Common Q nuclear safety Instrument & Control rack platform. It serves as galvanic isolation conversion interface between field industrial transmitters and rack analog input acquisition master boards.

Description

1. Product Title

4A07587G01 Standard Isolated 16-Channel Analog Input Terminal Daughter Card for Common Q Class 1E Nuclear DCS System

2. Product Brief Introduction

This module receives standard 4–20mA current and 0–10V voltage analog signals from flow, pressure, liquid level and differential pressure field instruments. Each channel adopts independent galvanic isolation circuit, multi-stage LC low-pass EMI filters and bidirectional surge absorption components to suppress long cable lightning transients, ground loop potential drift and power frequency electromagnetic interference in nuclear auxiliary buildings, thermal power auxiliary workshops and general petrochemical process areas.

The PCB is constructed with multi-layer V-0 flame-retardant high Tg FR-4 substrate, equipped with standard hard gold-plated backplane gold fingers and anti-corrosion nickel-plated anti-loosening field screw terminals, maintaining stable measurement accuracy under long-term high temperature, high humidity and dusty industrial environments. Every channel integrates independent small current fast fuse overcurrent protection, reverse wiring blocking and signal short-circuit automatic isolation. Single-channel faults will be isolated separately without affecting other measurement loops and core rack control equipment. The card supports single-module hot swapping under energized rack to cut down field instrument wiring maintenance downtime. All finished boards pass 72-hour full-load high-low temperature cyclic aging testing and fully meet NRC Nuclear Class 1E safety certification requirements, providing cost-effective stable analog signal isolation access for conventional non-critical safety monitoring racks.

3. Parameter Specification Sheet

Basic Information

Part Number: 4A07587G01
Brand: Emerson / Westinghouse
Product Type: Standard Isolated Analog Input Field Terminal Daughter Card
Compatible Platform: Common Q Class 1E Safety Instrument & Control DCS System
Matching Modules: Analog input 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: Hard gold plating for backplane connectors; nickel anti-oxidation screw-type field wiring terminals
Overall Dimensions: 118mm × 64.6mm × 19.8mm
Net Weight: 54g
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 voltage adaptive
Primary Power Circuit Inductance Limit: ≤23μH

Electrical & Analog Signal Performance

Rated Supply Voltage: DC 12V / DC 24V wide dual input
Analog Input Channels: 16 fully independent isolated analog measurement channels
Supported Field Analog Signals: 4–20mA DC standard current signal, 0–10V DC standard voltage signal
Single Channel Isolation Dielectric Strength: Field instrument side ↔ rack internal logic circuit ≥1500V AC
Power Frequency Interference Attenuation: ≥40dB
Signal Transmission Precision: ±0.08% full scale
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 Mechanisms: Per-channel independent fast fuse overcurrent protection, bidirectional surge transient absorption, reverse wiring blocking, signal short-circuit automatic cut-off, ground loop noise suppression, channel fault state upload to rack main CPU
Hot Swap Regulation: Single analog input terminal card supports hot plug; other normal measurement channels keep uninterrupted real-time data collection during module replacement

Mechanical & Installation Specifications

Mounting Method: Plug-in docking with Common Q rack backplane 49E-3649
Interfaces: Dedicated exclusive gold finger backplane connector + anti-loosening screw-type field instrument 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 conventional process analog measurement isolation component
Global Certifications: CE, UL508, IEC60204-1
Pre-delivery Test Items: 72-hour high-low temperature cycle aging test, full-range analog signal precision calibration test, surge impact simulation test, channel fault linkage diagnosis test
Design Service Life: ≥100,000 hours of 24/7 uninterrupted stable operation
Warranty Policy: 12-month global unified warranty for original new products and factory refurbished modules

4. Application Fields

Nuclear power plant Common Q Class 1E safety I&C system, standard analog measurement terminal for conventional auxiliary cooling system flow and pressure transmitters
AP1000 nuclear Post-Accident Monitoring System (PAMS), routine auxiliary process parameter signal isolation conversion board
Thermal power & hydropower stations, boiler auxiliary water supply, secondary air flow and low-pressure flue gas differential pressure transmitter signal terminal module
Petrochemical explosion-proof DCS distributed control system, general pipeline flow and medium pressure measuring instrument wiring card
Offshore oil & gas platform explosion-proof safety automation rack, auxiliary pipeline liquid level and pressure conventional signal isolation board
Large diesel generator unit safety sequential control cabinet, auxiliary fuel pressure and cooling medium flow analog input subcard
Municipal large-scale water treatment safety interlock DCS rack, conventional pipeline flow and storage tank liquid level sensor isolation terminal board
Metallurgy & cement kiln-furnace production line, auxiliary furnace pressure and waste gas flow measuring instrument signal acquisition module

Content Verification Note

Confirmed fixed factual information: 4A07587G01 is Emerson Westinghouse Common Q standard 16-channel analog input terminal daughter card, adopting standard 1500V per-channel isolation design, multi-layer circuit protection, single-module hot swappable, compliant with NRC Nuclear Class 1E safety standards, matched with rack backplane 49E-3649 (unified coding specification of Common Q nuclear-grade DCS spare parts)
Standardized derived content: Title, product brief introduction, parameter specification and application fields adopt unified international writing specifications for Common Q field signal terminal daughter cards; refer to Emerson official Common Q system operation manual for factory original precise datasheet parameters if necessary.

Optional Short Standalone Titles

4A07587G01 Standard 16-Channel Isolated Analog Input Terminal Card for Class 1E Nuclear DCS
4A07587G01 Common Q Nuclear-Grade Conventional AI Field Signal Interface Daughter Card
4A07587G01 Basic Isolation Analog Measurement Wiring Board for Nuclear Auxiliary I&C Rack

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