Model: IS420ESWBH1A (commonly known as: IS420ESWBH1AE)
Brand: GE (General Electric, now part of Baker Hughes)
Series: Mark VIe / Speedtronic Turbine Control Platform
Type: IONet dedicated industrial switch (GE Real-time Ethernet)
Status: In-service mainstream, not discontinued; available in new / in stock / refurbished
Weight / Dimensions: Approximately 0.6kg; 280×115×45mm
Installation: DIN rail or panel mounting
II. Port Configuration (Core)
16×10/100BASE-TX (RJ45): 10/100Mbps auto-adaptive, connects to controller, I/O module, HMI
1×100BASE-FX multimode fiber (LC): Long distance, strong anti-interference, used for IONet backbone / redundant links
Protocol: IONet (GE deterministic Ethernet), low latency, no collisions, compatible with turbine / steam turbine closed-loop control
Key technical parameters
Power supply: Redundant 18–36VDC (dual input, diode or), single path failure does not cause system shutdown
Temperature: -40℃ ~ +70℃, IP20, industrial-grade dustproof and moisture-proof
Cache / Address: ≥256KB cache, supports 4K MAC address
Authentication: CE, UL, IEC 61131, power / nuclear power compliance
Four. Model Analysis (IS420ESWBH1A)
IS420: Mark VIe I/O and Network Module Series
ESW: Ethernet Switch (Ethernet Switch)
B: 16 Ethernet port version (A = 8 Ethernet ports)
H: Hardware version
1 optical port, standard configuration
Five. Typical Applications
Gas / Steam Turbine Control: Mark VIe system IONet backbone switch
Power Generation DCS: Connect controllers, I/O, vibration module, operator station
High Availability Scenario: Dual-fiber / TMR redundant architecture, zero packet loss, low latency
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