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Product Overview
The GE IS420ESWAH3A is an industrial IONet Ethernet switch used in GE Mark VIe and Mark VIeS control architectures. It provides eight 10/100Base-TX copper Ethernet ports for communication between compatible controllers, I/O devices, and other approved network equipment. Unlike fiber-equipped ESWA variants, this version uses copper RJ-45 connections only, making it suitable for cabinet-level IONet networks where fiber uplinks are not required. GE documentation identifies the unit as an 8-port 10/100Base-TX IONet switch intended for real-time industrial control applications.
Technical Specifications — GE IS420ESWAH3A
| Parameter | Value |
|---|---|
| Product Model | IS420ESWAH3A |
| Manufacturer | GE |
| Product Type | Mark VIe IONet Industrial Ethernet Switch |
| Power | 24 / 28 VDC, up to 1 A |
| Communication / Protocol | 10/100Base-TX Ethernet; IEEE 802.3, 802.3u, 802.3x |
| Operating Temperature | -40 to 70°C (-40 to 158°F) |
| Mounting | DIN rail with mounting clip |
| Dimensions (H × W × D) | 13.8 × 8.6 × 5.6 cm |
| Weight | Configuration dependent |
| Typical Interfaces | 8 × RJ-45 copper Ethernet ports |
| Fiber Ports | None |
| Cooling | Convection cooled |
| Compliance | G3 compliant; application-specific hazardous-location approvals apply |
GE’s technical documentation specifies redundant power inputs through TB1 and TB2, with the inputs diode-OR’d for redundant supply operation. The switch is also specified for industrial environmental conditions and DIN-rail installation.
GE IS420ESWAH3A
Key Features and Benefits — GE IS420ESWAH3A
- Eight 10/100Base-TX copper Ethernet ports
- RJ-45 connectivity for compatible IONet devices
- Auto-negotiation for speed and duplex
- 802.3, 802.3u, and 802.3x compatibility
- HP-MDIX auto-sensing
- LED status indication for network and power conditions
- Redundant DC power input arrangement
- Fanless, convection-cooled design
- Suitable for Mark VIe and Mark VIeS control networks
A key point during replacement is port type. This unit has no fiber ports, so it should not be substituted for an ESWA variant requiring a fiber uplink. GE specifically lists the H3 version as the 8-port copper-only configuration.
GE IS420ESWAH3A
Related Models
GE IS420ESWAH1A: An 8-port copper IONet switch with one 100 Mbps fiber-optic uplink.
GE IS420ESWAH2A: Provides eight copper ports plus two 100 Mbps fiber-optic uplinks.
GE IS420ESWBH3A: A larger 16-port copper-only IONet switch for installations requiring additional Ethernet connections.
GE IS420ESWAH4A: An 8-port copper version with a 100Base-LX10 single-mode fiber connection.
Installation and Maintenance — GE IS420ESWAH3A
Before replacement, verify the complete part number and confirm that the existing network requires copper-only connectivity. Inspect the RJ-45 connectors, power terminals, DIN-rail mounting arrangement, and enclosure condition before installation.
Use the site’s approved Ethernet cabling and follow the Mark VIe network architecture. After energizing, check the power LED and individual network status indicators, then confirm communication with the associated I/O and controller devices. GE documentation cautions that approved IONet switches should be used within the control I/O network.
Product Warranty — GE IS420ESWAH3A
Warranty terms depend on the supplier and equipment condition. For new, surplus, or refurbished inventory, confirm the hardware revision, serial number, test status, and warranty period before purchase. For critical turbine-control applications, functional inspection or test documentation is recommended.
The GE IS420ESWAH3A is a practical replacement choice for compatible Mark VIe IONet installations where eight copper Ethernet ports are required and no fiber uplink is present.
