GE IS420ESWAH2A

Product Introduction: The GE IS420ESWAH2A is an unmanaged industrial Ethernet/IONet switch designed for the Mark VIe and Mark VIeS safety control systems. It is part of the ESWA series, featuring eight 10/100Base-TX copper ports and two 100Base-FX multimode fiber ports with LC-type connectors. The switch is engineered to meet the real-time, high-reliability communication requirements of turbine control systems.

Category: SKU: GE IS420ESWAH2A

Description

GE IS420ESWAH2A

Technical Specifications:

  • Series: GE Mark VIe / Mark VIeS
  • Product Type: Unmanaged IONet/Industrial Ethernet Switch (ESWA series)
  • Copper Ports: 8 × 10/100Base-TX RJ45
  • Fiber Ports: 2 × 100Base-FX multimode, LC-type connectors
  • Standards: IEEE 802.3, 802.3u, 802.3x
  • Auto-Negotiation: 10/100 base copper, full/half duplex
  • FX Uplink: 100 Mbps
  • HP-MDIX: Auto-sensing
  • Buffer: Minimum 256 KB
  • MAC Addresses: 4K
  • Power Input: 24/28 V DC, redundant dual power input (diode OR’d)
  • Operating Temperature: -40 °C to +70 °C
  • Cooling: Convection (no fan)
  • Installation: DIN rail or panel mount
  • Weight: Approximately 1.1–1.6 kg
  • RJ45 Insertion Cycles: Up to 200

Functional Features:

  • Buffers multicast and broadcast packet streams with per-port buffering
  • Soft-start inrush current limited to less than 200% of normal operating current
  • Redundant dual power inputs for high availability
  • LED indicators for link, activity, duplex, and speed per port (two-color LEDs)
  • Dedicated power status LED
  • Supports simplex, dual, and TMR controller redundant configurations
  • HP-MDIX auto-sensing eliminates crossover cable requirements

Application Scenarios:

  • Mark VIe and Mark VIeS IONet network infrastructure for gas/steam turbine control
  • Power plant control system networking requiring fiber uplinks for EMI immunity
  • Industrial automation environments needing rugged, fanless Ethernet switching
  • Redundant network topologies in safety-critical control systems

Performance Parameters:

  • Wire-speed forwarding on all ports
  • Low switch latency suitable for real-time control
  • Robust buffering for multicast-heavy IONet traffic
  • Industrial-grade reliability with redundant power and wide temperature range

Material and Structural Characteristics:

  • Industrial-grade metal housing with convection cooling fins
  • DIN-rail or panel-mount enclosure with seven panel-mount screw holes
  • RJ45 connectors rated for 200 insertion/removal cycles
  • LC-type fiber connectors for multimode fiber
  • Dimensions consistent with ESWA series form factor

Working Principle: The switch operates as a Layer 1 Ethernet switch, buffering and forwarding packets between connected IONet devices. It automatically negotiates speed and duplex on copper ports, supports fiber uplinks for long-distance or EMI-immune connections, and uses HP-MDIX to auto-configure cable orientation. Redundant power inputs ensure continuous operation during power supply failures. Installation Requirements:

  • Mount on DIN rail using appropriate clips (259B2451BVP1 for horizontal, 259B2451BVP4 for vertical) or panel-mount using seven screw holes
  • Connect 24/28 V DC to redundant power inputs
  • Wire copper ports using Cat 5e or better UTP cabling with RJ45 connectors
  • Connect fiber ports using multimode fiber with LC connectors
  • Observe maximum 200 insertion/removal cycles for RJ45 connectors
  • Ensure adequate ventilation for convection cooling

Usage Notes:

  • Use only LC-type connectors for the multimode fiber ports
  • Avoid applying torsional stress or cable-weight tension on connectors
  • Confirm power supply polarity and voltage before energizing
  • Monitor LED indicators for link status, activity, and power
  • Replace with identical ESWA series models to maintain network configuration