Product Introduction

The IS420ESWBH2A is an unmanaged Ethernet switch commonly used in General Electric's Mark VIe Speedtronic system. This is a control and management system for industrial hydro, gas, and steam turbine systems ranging from a single turbine to an entire plant.

The IS420ESWBH2A offers many standard features including

LEDs for link activity, duplex, and speed for each port

Power LED

10/100 Base Copper with Auto-Negotiation

100 Mbps FX Uplink Port

HP MDIX Auto-Sensing
Compatible with 802.3, 802.3u, and 802.3x Ethernet

4K Media Access Control (MAC) addresses and requirements. 256Kb buffer.
The unit has 16 ports that support 10/100 BASE TX. Two of the ports also support 100BASE FX connections (LC type).

In some cases, ESWB switches may experience a power loss or voltage sag, causing them to reboot incorrectly or fail to reestablish a communication link with the system. If this occurs, be aware that your switch may not reboot correctly even after the voltage returns to normal. Refer to GEH-6721 Vol II for information on how to discover and correct this error.

The IS420ESWBH2A is typically installed in new applications that use DIN rails. It can be mounted either parallel to the rail or perpendicular to the rail. However, the unit can also be panel mounted and mounting holes are provided for this application.

The IS420ESWBH2A is designed as a single unit to better utilize space. The unit is marked with the GE logo on the frame. All ports are numbered.

The IS420ESWBH2A device is an unmanaged IONet/Industrial Ethernet switch designed by General Electric for use with the Mark VIeS or Mark VIe Safety Control System.

A key defining feature of the differences between the five ESWB switches is the number of fiber ports on the switch;

This switch has two 100Base-FX multimode fiber ports, regardless of the mode of LC connection the fiber ports have.

A special feature of the RJ45 connectors is that they are able to handle high stress and should be able to use up to 200 insertion/removal cycles.

The standard operation of the IS420ESWBH2A switch will be centered around the ability to buffer multicast and broadcast packet streams.

There are multiple streams that will enter the switch and there is enough space to buffer one packet per port,

Note that multiple streams will generally only allow for buffering of one incoming stream and the remaining streams must be saved for later transmission.

Since high reliability is required when using the IS420ESWBH2A switch, several performance criteria should be considered during operation,

switch architecture, inrush current, and switch latency. The inrush current of the switch will provide a soft start that helps limit the inrush current to less than two hundred percent of the normal operating current.

The Industrial Ethernet switch IS420ESWBH2A is part of the Mark VIe series designed by General Electric. The switch is equipped with two 100Base-FX multimode ports.

The IS420ESWBH2A switch has an RJ45 connector that should have a capacity of up to 200 insert/remove cycles.

The IS420ESWBH2A has the ability to use high speed and functions. To achieve these functions, a 100 Mbps FX uplink port and 10/100 base copper ports with auto-negotiation are required.

The IS420ESWBH2A Mark VIe provides PROFIBUS DP-V0 and DP-V1, Class 1 master devices, mapping I/O slave devices to the controller. The Bus Performance Gateway is an I/O module that communicates with the controller through a 100 MB Ethernet I/O network and communicates with slave devices through RS-485 interfaces. It supports 9.6 KB to 12 MB of communication for up to 125 nodes with 244 bytes of I/O per slave node. Data can be communicated between the controller and PROFIBUS I/O modules at speeds as fast as 10 milliseconds. Data is then communicated asynchronously to the slave devices at the fastest possible rate, determined by the PROFIBUS network baud rate, number of slaves, number of I/O, and slave response time. At a 10ms execution rate (frame rate), 500 inputs and 500 outputs (semi-Boolean and semi-analog) can be processed. For input event detection, Booleanputs can be configured as sequence of events (SOE) logging with 10ms time stamps. Analog data can be configured for point to variable data type conversion and scaling. GE Spare Parts IS420ESWBH2A Communication Modules Applying Mark V Power Boards
GE Spare Parts IS420ESWBH2A Communication Modules Applying Mark V Power Boards
GE Spare Parts IS420ESWBH2A Communication Modules Applying Mark V Power Boards
The IS420ESWBH2A fieldbus module, such as the Foundation Fieldbus H1 to HSE Linking Device, communicates on the Mark VIe IONet and is fully compatible with the ControlST software suite, which is a 61b
class registered host. The ToolboxST software is used to configure and monitor the fieldbus modules and all devices at the I/O and monitoring levels. For reliability, two linking devices can be connected with an RS-232C
null modem cable to form a logical linking device (redundant set) in a primary/secondary configuration. Features? 4 H1 ports with galvanic isolation (transformer)? 16 field devices per segment? Data link layer compliant with IECTM 61158? Access device data, function blocks and configuration from HSE? Republish data from H1 to HSE or between H1 links? Redundant and non-redundant configuration? Each H1 channel can be a link master or time manager.
GE Spare Parts IS420ESWBH2A Communication Module Application Mark V Power Board

The IS420ESWBH2A is a GE designed unmanaged IONet/Industrial Ethernet switch for Mark VIeS or Mark VIe safety control systems. It has two 100Base-FX multimode fiber ports, and both fiber ports have LC type connections regardless of the mode. In addition, it also provides 16 fixed 10/100M adaptive Ethernet ports and 4 fixed 1000Base module (supports single-mode and multi-mode) or 1000Base-T module (supports twisted pair transmission) SFP interfaces, and optional 8 100Base-FX optical ports (default SC interface, optional FC, ST) or 8 10/100M adaptive Ethernet ports. The switch also has Web browser, CLI and SNMP management functions, and supports storage and forwarding mechanism, port mirroring, port aggregation and other functions.

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