IS420ESWBH1A - ESWB Industrial Ethernet IONet Switch | GE Mark VIe | B7B

IS420ESWBH1A is a General Electric ESWB Industrial Ethernet IONet Switch for GE SPEEDTRONIC™ Mark VIe control systems. The ESWB function supports network switch operation in turbine control and balance-of-plant applications that use the Mark VIe / Mark VIeS Distributed Control Hardware. It should be matched to the installed catalog number, hardware form, and cabinet configuration before it is used as a replacement.

GE documentation identifies the supported point or channel information as 16 ports 10/100BASE-TX plus 1 port 100BASE-FX LC-type. The electrical or signal interface is documented as 10/100BASE-TX and 100BASE-FX LC-type. The documented communications interface uses IONet Ethernet. The documented form factor or mounting style is DIN-rail unmanaged Ethernet switch. The system architecture should be matched to the documented configuration, including Used in Mark VIe / Mark VIeS I/O networks. It should be matched with compatible hardware such as Control system IONet where that pairing is used in the site configuration.

This component is typically considered when troubleshooting Mark VIe hardware, replacing a failed module, evaluating repair options, or maintaining spare inventory for turbine control systems. Before installation, verify the catalog number, hardware revision, and associated terminal board or I/O pack configuration against site documentation and OEM requirements. The OEM reference for this listing is GEH-6721 Vol I; GEH-6721 Vol II.

Control system parts are provided by GTC Control Solutions, Inc., a wholly owned subsidiary of B7B. Parts are offered in unused, repaired, or remanufactured condition, subject to availability. Each repaired or remanufactured component undergoes comprehensive functional testing in energized panels to guarantee reliability and performance. We provide detailed test reports and warranties with every repair, giving you confidence in the quality and longevity of your replacement parts.