3A99200G02 Ovation PCI Main Rack Backplane_Ningde Androld Automation Equipment Co.,Ltd.

June 05, 2026

3A99200G02 Ovation PCI Main Rack Backplane

3A99200G02 is revised-generation PCI/Multibus main backplane for Ovation DCS master controller rack, optimized upgrade version based on 3A99200G01 hardware layout. It acts as core signal carrier for rack-mounted redundant CPU controllers, PCI communication cards and remote I/O interface modules (3A99190G01). The lower 3A99199G01 backplane supplies +5VDC and +24VDC power source, while this backplane implements internal Multibus parallel bus + PCI industrial bus high-speed data interconnection. Widely deployed in thermal power, nuclear power and petrochemical main control cabinets for boiler, turbine and generator coordinated control system. Key upgrade vs 3A99200G01: enhanced PCB anti-interference coating, optimized slot power trace design and improved surge suppression circuit for harsh plant ambient.

Description

Part No.: 3A99200G02, Emerson (Westinghouse legacy) Ovation DCS controller backplane, upgraded revision of 3A99200G01, paired with 3A99199G01 power distribution backplane as full rack assembly

1. Product Overview

Key upgrade vs 3A99200G01: enhanced PCB anti-interference coating, optimized slot power trace design and improved surge suppression circuit for harsh plant ambient.

2. Electrical Specifications

Power Input: Receives regulated +5VDC, +24VDC power feed from matched 3A99199G01 power backplane, onboard split power tracks for every card slot.
Bus Architecture: Dual-bus design including proprietary Ovation Multibus and standard PCI bus, supports real-time bidirectional data transmission between all plug-in control modules.
Circuit Design: Strict isolation layout for power copper foil and signal routing to reduce cross-talk and electromagnetic interference; upgraded transient protection components compared to G01 version.
Compatibility: Fully mechanically and electrically interchangeable with 3A99200G01 for direct field replacement without rack modification.

3. Environmental & Mechanical Parameters

Operating Temperature: 0℃ ~ +60℃ inside sealed control cabinet; Storage: -40℃ ~ +85℃.
Humidity Range: 5%~95% non-condensing relative humidity; full conformal PCB coating against moisture, mould and salt mist erosion.
EMC Standard: Complies with IEC61000 industrial electromagnetic compatibility requirements.
Physical Dimension: Standard Ovation rack footprint, approx 30×20×20cm, net weight around 2kg, fixed installation together with 3A99199G01 in controller chassis.

4. Installation & Application Features

All CPU, PCI communication and gateway cards plug directly into standardized slots on this backplane; single module hot-swap available without full rack power cut-off.
Supports redundant dual-CPU configuration for critical process control loops to boost continuous operation reliability.
Drop-in replacement for existing 3A99200G01 in-site retrofit project.

5. Spare Part & Fault Reference

Original OEM mass production discontinued; available stock covers brand-new original surplus and fully bench-tested refurbished goods with standard 12-month warranty.

Whole rack controllers offline: Abnormal power output from 3A99199G01 or broken main bus traces on backplane.
Individual slot communication failure: Damaged slot contact pins or oxidized gold fingers.
Random intermittent data fault: Loose rack mounting or degraded onboard filter components.

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