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IS420ESWBH3A - Ethernet IONet Switch

IS420ESWBH3A - Ethernet IONet Switch IS420ESWBH3A - Ethernet IONet Switch

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Part No.: IS420ESWBH3A
Manufacturer: General Electric
Country of Manufacture: United States(USA)
Product Type: IONET Switch, 16 Port
Series: Mark VIe

IS420ESWBH3A is an Ethernet IONet Switch and is part of the GE Speedtronic Mark VIe gas turbine control system. It is available in 8 ports, 10/100BASE-TX. The ESWB Ethernet 10/100 switches are specially designed to meet the needs of real-time industrial control solutions and are required for all IONet switches used in Mark VIe & VIeS safety control systems. It is a DIN - Rail mounting module. To meet the requirements for speed and functionality the following features are provided.

  • 802.3, 802.3U, 802.x, compatibility
  • 10/100 base copper with auto negotiation
  • Full/half duplex auto - negotiation
  • 100 mbps FX - Uplink port
  • HP - MDIX auto sensing
  • LEDís to indicates status of link presents, activity, duplex, and speed port (each LED has two colors)
  • LED to indicate power status
  • Minimum 256kb buffer with 4k media access control (MAC) address.
  • Redundant power supply inputs

IS420ESWBH3A Installation

Install the switch using a DIN-rail on the control system panel for new installations. Connect the copper and/or fiber wires according to the system's redundancy and requirements. Connect the switch to the 28 V dc electricity from the power distribution board.

IS420ESWBH3A Configuration

Multiple insertions and removals are supported using RJ-45 connectors, which have a service life expectancy of 200 insertion/removal cycles. Torsion pressures are applied to connection components along any axis, as well as static tension forces caused by cable weight and cable dressing.


The switch enclosure can be DIN-rail mounted or panel mounted (switch mounts to back wall of panel with bracket). The DIN-rail mounting system complies with vibration and shock requirements. Both mounting types allow for easy access to user connections.


A level 1 Ethernet switch's performance is mostly determined by its ability to buffer packets. When a level 1 switch receives a continuous stream of broadcast or multicast packets, it must send those packets out after they have been fully received. A single incoming stream should take up enough memory to buffer one packet, or at the very least one packet per port.

Switch Replacement

When the ESWA or ESWB is used to replace an unmanaged switch, the existing mounting brackets, which can be panel or DIN rail mounts, are used. On the present switch, there are seven screw holes for panel mounting.

IS420ESWBH3A Features

Dimensions (width x depth x height)
138 x 86 x 56 mm

Convection cooled when mounted vertically or horizontally

Absolute Maximum Current

WOC has the largest stock of Speedtronic Mark VIe and we can repair your faulty spares with a warranty. Our team of experts are available round the clock to support your urgent needs related to critical spares, contact us.


What is IS420ESWBH3A?
IS420ESWBH3A is an Ethernet IONet Switch and is part of the GE Speedtronic Mark VIe gas turbine control system.

What are the dimensions of the component?
138 mm width, 86 mm depth, 56 mm height

Which are the LED indicators present on the switch?
LEDís to indicates status of link presents, activity, duplex and speed port (each LED has two colors) and power status indicator.