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The GE IS420ESWBH1A is a purpose‑engineered industrial Ethernet IONet switch module by General Electric (GE), designed to serve as the network communication backbone in advanced control systems such as GE Mark VIe and Mark VIeS. With a robust combination of multiple copper Ethernet ports and a dedicated fiber uplink, this switch enables deterministic, high‑speed connectivity between controllers, I/O modules, and supervisory systems in mission‑critical environments. Its rugged construction and plug‑and‑play operation make it ideal for power generation, process automation, and heavy industrial applications where reliable data exchange is paramount.

Technical Specifications

Specification	Details
Brand	GE (General Electric)
Model	IS420ESWBH1A
Module Type	Industrial Ethernet IONet Switch
Series Compatibility	GE Mark VIe / Mark VIeS
Copper Ports	16 × 10/100 Base‑TX RJ45
Fiber Port	1 × 100 Base‑FX (multi‑mode, LC connector)
Ethernet Standards	IEEE 802.3, 802.3u, 802.3x
Auto‑Negotiation	Fully automated duplex & HP‑MDIX
MAC Address Support	Up to 4 K
LED Indicators	Link/Activity/Duplex/Speed per port
Power Supply	24–28 VDC
Operating Temp.	‑40 °C to +70 °C
Dimensions (approx.)	162 mm × 115 mm × 72 mm
Weight (approx.)	1.6 kg
Mounting	DIN‑rail or panel mount
Protection & Compliance	Industrial Ethernet, G3 standards

These robust specifications underscore the IS420ESWBH1A’s role as a cornerstone network element in demanding automation systems.

Recommended Related Models

To complement or expand your network and control platform, consider these GE IONet and control modules:

GE IS420ESWAH1A – 8‑port unmanaged Ethernet switch with fiber uplink
GE IS420ESWBH2A – Higher fiber port count variant for longer network reach
GE IS420ESWBH3A – Copper‑only 16‑port switch option
GE IS420UCSBH1A – Mark VIe controller module for core processing

These related boards enable scalable and flexible architectures for industrial networking and control.

Popular Allen Bradley Models (For Reference)

For users familiar with Allen‑Bradley infrastructure, comparable networking resources include:

Allen‑Bradley 1783‑ETAPND8 – 8‑port unmanaged Ethernet adapter
Allen‑Bradley 1783‑AW6T – Managed industrial Ethernet switch
Allen‑Bradley 1756‑EN2T – ControlLogix EtherNet/IP interface
Allen‑Bradley 1756‑RLY – Remote I/O link module

While platform ecosystems differ, these products serve analogous communication roles.

Applications

The GE IS420ESWBH1A switch is optimized for high‑performance industrial networks in:

GE Mark VIe/VIeS turbine control and automation systems
Distributed Ethernet I/O networks
Backbone connectivity for controllers and field modules
Real‑time machine and process communication layers
Control room and cabinet network infrastructure
Systems requiring mixed copper and fiber links for flexibility

Its balance of port density, fiber uplink, and rugged design make it ideal where deterministic, 24/7 network performance is required.

Advantages

High Port Density: Sixteen copper ports plus a dedicated fiber link accommodate extensive network topologies.
Rugged Industrial Design: Wide temperature tolerance and enterprise‑grade construction ensure consistent performance.
Unmanaged Plug‑and‑Play: Simple, reliable operation with auto‑negotiation and minimal configuration.
Seamless Integration: Works natively within GE Mark‑series control systems.
Reliable Diagnostics: Per‑port status LEDs simplify network monitoring and troubleshooting.
Flexible Installation: Supports DIN‑rail or panel mounting to suit various control cabinet layouts.

These strengths combine to provide a versatile, durable network solution for mission‑critical automation.

Technical FAQs

What type of module is the GE IS420ESWBH1A?
It’s a 16‑port industrial Ethernet IONet switch designed for GE control networks.
How many copper Ethernet ports does it include?
It has 16 × 10/100 Base‑TX RJ45 copper ports.
Does it support fiber connectivity?
Yes — one multi‑mode 100Base‑FX fiber uplink port with an LC connector.
What is the operating temperature range?
Industrial range of roughly ‑40 °C to +70 °C.
What power does it require?
Nominal 24–28 VDC industrial power input.
Is this a managed switch?
No — it’s an unmanaged Ethernet switch for real‑time connectivity.
Can it be mounted in different orientations?
Yes — parallel or perpendicular DIN‑rail and panel options with appropriate clips.
What standards does it support?
IEEE 802.3/802.3u/802.3x for Ethernet communications.
Is it suitable for redundant network setups?
Yes — supports up to three networks matching controller redundancy needs.
What maintenance features does it offer?
Per‑port LED indicators show link, speed, activity, and duplex status for quick diagnostics.