GE IS420UCSBH4A Dual port Ethernet switching module
1. Product Description
The GE IS420UCSBH4A is a Dual-Port Ethernet Switch Module designed for Mark VIe gas/steam turbine control systems. It provides high-reliability, redundant communication between controllers, I/O packs, and HMI interfaces within GE’s Speedtronic™ platform.
2. Product Parameters & Specifications
Key Specifications Table
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Category
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Specification
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|---|---|
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Part Number
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Series
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Mark VIe Turbine Control System (UCSB Series)
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Type
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Industrial Ethernet Switch Module
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Ports
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8x 10/100Base-TX Copper Ports + 2x 100Base-FX Fiber Ports
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Switching Capacity
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3.2 Gbps
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Protocols
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Ethernet/IP, MODBUS TCP, PROFINET, SRTP, DLR
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Redundancy
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PRP/HSR (Parallel Redundancy Protocol / High-availability Seamless Redundancy)
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Power Supply
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24V DC (18–32V range) via terminal block
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Operating Temp
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-40°C to +70°C (-40°F to +158°F)
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Certifications
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UL 508, CE, IEC 61800-5-1 (SIL 2 capable)
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MTBF
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>500,000 hours
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Dimensions
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145 x 110 x 40 mm (5.7 x 4.3 x 1.6 in)
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3. Series & Variants
- Series: Part of GE’s Mark VIe UCSB (Universal Control Switch Blade) Series.
- Variant Notes:
- H4A suffix denotes enhanced redundancy (PRP/HSR) and fiber-optic support.
- Predecessor: IS420UCSBH1A (no fiber ports).
- Compatible with Mark VIe Controllers (e.g., IS200/IS215 series).
4. Key Features
- Dual-Homing Redundancy: Zero-loss failover via PRP/HSR for critical networks.
- Fiber-Optic Isolation: Eliminates electrical noise in harsh environments.
- Deterministic Traffic: Prioritizes control system data (QoS).
- Hot-Swappable: Supports replacement without system shutdown.
- Diagnostics: Port-level LEDs, SNMP monitoring, and event logging.
- Cyber Security: MAC address filtering, VLAN support, and port security.
5. Function & Role
- Network Backbone: Connects Mark VIe controllers, I/O packs (e.g., IS220PDIAH1A), and workstations.
- Data Aggregation: Consolidates turbine control, protection, and monitoring data.
- Redundancy Management: Ensures uninterrupted communication during faults.
- Protocol Translation: Bridges legacy systems (e.g., MODBUS RTU) to Ethernet.
6. Applications & Use Cases
Primary Application Domain
Power Generation Turbine Control Networks:
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Application
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Function
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|---|---|
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Controller Interconnect
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Links redundant Mark VIe controllers (TMR architecture).
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I/O Integration
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Connects distributed I/O packs across turbine skid.
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HMI/SCADA Integration
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Interfaces with operator workstations (CIMPLICITY, iFIX).
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Remote Monitoring
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Enables data exchange with plant DCS/PLC systems.
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Secondary Industrial Uses
- Oil & Gas compressor control
- Hydroelectric plant networks
- Marine propulsion control systems
7. Comparison to Previous Versions
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Feature
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IS420UCSBH4A
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IS420UCSBH1A
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|---|---|---|
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Fiber Ports
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2x 100Base-FX
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None
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Redundancy
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PRP/HSR
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RSTP only
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SIL Certification
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SIL 2 capable
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SIL 1
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Environmental
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-40°C to +70°C
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-20°C to +60°C
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Summary
The GE IS420UCSBH4A is a mission-critical Ethernet switch for Mark VIe turbine control systems, delivering fault-tolerant networking with industrial-grade robustness. Its dual fiber/copper ports and PRP/HSR redundancy ensure millisecond-level failover, crucial for power generation safety and reliability.
⚠️ Note: Requires configuration via ToolboxST™ software. Compatible with Mark VIe controllers (v08.20+ firmware). For lifecycle support, contact GE Power Conversion Services.
System Integration Diagram
Turbine Sensors → I/O Packs (IS220PDIAH1A) → **IS420UCSBH4A** ↔ Mark VIe Controller ↔ HMI
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Redundant UCSBH4A
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