Product Short Description
ESW Backplane Terminal Board, Type H4A
Product Introduction
Backplane matching terminal board of GE IS420 series Mark VIe system, used for bus signal distribution and multi-module wiring convergence inside the control cabinet, serving as the intermediate connection carrier of cabinet internal signals.
Description
Model Series
IS420 Series – ESW Backplane Terminal Board Family
Technical Specifications
- Rated Operating Voltage: 24 VDC
- Operating Temperature: 0 °C ~ +60 °C
- Storage Temperature: -40 °C ~ +85 °C
- Working Humidity: 5% – 95% non-condensing
- Bus Signal Voltage: 5 VDC bus logic level
Functional Features
- Cabinet internal bus signal distribution and convergence
- Multi-module signal wiring integration
- Bus signal anti-interference filtering
- Circuit short-circuit protection function
- Unified signal transition for rack internal modules
Performance Parameters
- Bus Transmission Rate: Standard Mark VIe bus rate
- Bus Load Capacity: Support multiple slave modules access
- Transmission Delay: ≤ 0.5 ms
- Insulation Performance: ≥100 MΩ insulation resistance
Material Composition
- Main board: High-strength FR-4 industrial PCB
- Bus connectors: Gold-plated high-density connectors
- Wiring terminals: Tin-plated copper terminals
- Filter components: High-frequency filter devices
Structural Characteristics
- Cabinet backplane integrated structure
- Multi-group parallel bus interfaces
- Reinforced fixed structure suitable for long-term cabinet operation
- Distributed terminal layout for classified wiring
Working Principle
As the signal convergence center inside the control cabinet, it receives bus signals from the main control module, distributes signals to each plug-in module through internal bus circuits; collects return signals from each module and converges them to the main control module, realizing unified scheduling of cabinet internal signals.
Advantage Highlights
- Integrated wiring, simplify cabinet internal circuit layout
- Optimized bus circuit design, stable signal transmission
- Strong load capacity, support multi-module parallel operation
- High mechanical strength, adapt to long-term cabinet operation
Applicable Industries
All application scenarios of GE Mark VIe DCS and turbine control system, power generation, petrochemical, metallurgical industrial control cabinets
Installation Requirements
- Fixed installation at the rear of standard 19-inch rack
- All connectors must be fully inserted and locked
- Classified wiring according to signal type
- Ensure cabinet internal ventilation
Usage Notes
- Strictly prohibit disassembly and modification during power-on
- Prevent metal foreign matters from falling into bus connectors
- Regularly check connector contact status
- Do not arbitrarily expand bus load beyond rated range
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