IS215ISBBH2A - Splinter Communication Switch

IS215ISBBH2A - Splinter Communication Switch IS215ISBBH2A - Splinter Communication Switch

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Part No.: IS215ISBBH2A
Manufacturer: General Electric
Function: Splinter Communication Switch
Housing Type: Metal
LED: 1 (Receiver Active)
Non-Operating Shock Value: 10G
Ethernet Ports: 3
Mounting option: DIN-Rail
Temperature: 0 to 45 degrees Celsius
Relative Humidity: 10-95%
Product Type: Switch
Availability: In Stock
Series: Mark VI
Country of Manufacture: United States (USA)

Functional Description

IS215ISBBH2A is a splinter communication switch developed by GE. It is a part of Mark VI control system. This particular model is a Splitter Communication Switch, with a housing made of metal. It features one LED, indicating the receiver is active. The non-operating shock value is rated at 10G, which indicates its ability to withstand shocks without sustaining damage when it is not in use. It has three Ethernet ports, all of which support full duplex communication and are capable of receiving data in and transmitting data out. The operating temperature range is 0 to 45 degrees Celsius, which means it can operate effectively within this temperature range. The two green and yellow LEDs on this model, labeled Interlock Active and XMIT Data, are used to indicate the data and activity status. It is unknown whether the LEDs will always be solid or if they will flash to indicate a fault at any point. The XMIT Data LED indicates to the user whether the model is receiving or sending data; there is a plug on this model labeled XMIT Data out that is used for data outputs.The relative humidity range for this model is 10-95%, which indicates the level of moisture that it can tolerate while still functioning properly. This model is only suitable for DIN-rail mounting. The ISBB model uses a 24 VDC power supply input.

IS215ISBBH2A Features

  • Ventilation: Designed with ventilation on all sides to facilitate the escape of heat and allow fresh air to enter. This ventilation helps to cool the internal components, ensuring optimal operating temperatures and preventing overheating.
  • Ethernet Port Labeling:
    Each ethernet port on the component is clearly labeled on the back, indicating its purpose and function. The labeling allows for easy identification and proper connection of the ethernet ports. Additionally, the port labeled Full Duplex next to the green adapter (P1) indicates its capability to support full-duplex communication.
  • Cable and Drop Status: The status of the Receiver Active LED provides information about the upstream cable and drop. When the "Receiver Active" light is off, it indicates a problem with the upstream cable or that the upstream drop is not transmitting. Conversely, when the "Receiver Active" light is illuminated, it signifies that the upstream drop is transmitting, and the cable is in good condition.
  • Installation and Locking: The component is designed to be inserted and locked into place within the system. The specific installation mechanism ensures secure positioning and proper electrical connectivity within the system.
  • Additional Components: The board of includes two side-by-side relays, two rectifier coils, two LED indicators (one green and one yellow), and a jumper switch. The jumper's settings, which affect the component's functionality, are noted in a small table on the board's surface directly beneath the component.
  • Voltage Comparator: A voltage comparator function is performed by a single integrated circuit within the component. This circuit enables the comparison of voltages, contributing to the component's overall functionality and operation.

LED Indicators

  • LED Indicators: Features LED indicators for visual status indication. On the front face of the component, there is a single light labeled Receiver Active.This LED illuminates to indicate that the upstream drop is transmitting and the cable is in good condition.
  • LED Diagnostic Chart: A small chart with the words LED Diagnostic can be found on the back of the component. This chart provides valuable information and guidance for interpreting the status of the LED indicators, assisting with troubleshooting and diagnostic activities.

Product Attributes

  • Data Routing: The switch has the capability to route data between connected devices or systems. This can be achieved through a range of different routing techniques such as static routing, dynamic routing, and multicast routing.
  • Redundancy: Offers high levels of redundancy to ensure continuous and uninterrupted communication. This is achieved through various redundancy features such as dual power inputs, dual Ethernet ports, and automatic failover.
  • Diagnostics: The switch provides diagnostic capabilities to enable troubleshooting and maintenance. This includes various diagnostic tools such as LED indicators, alarm outputs, and web-based management interfaces.


  • The component features multiple pre-drilled holes, including four drill holes labeled E1, E2, E3, and E4.
  • These holes are frequently used to attach the board to DIN rails, offering flexibility and ease of installation in compatible mounting systems.

To check the power wiring

To ensure the proper functioning and safety of the power wiring, the following steps should be taken:

  • Verify Wiring Alignment: Check that all incoming power wiring aligns with the provided basic drawings. This helps ensure that the wiring is correctly connected and matches the intended configuration.
  • Follow Approved Wiring Practices: Adhere to approved wiring practices as described in the previous chapter. These practices ensure that the wiring is installed correctly, minimizing the risk of electrical faults or hazards.
  • Check Terminal Connections: Inspect the tightness of all electrical terminal connections. Loose connections can lead to poor electrical conductivity and potentially cause overheating or intermittent power supply. Ensure that all connections are securely tightened.
  • Inspect for Damage: Carefully inspect the wiring for any signs of damage or fraying that may have occurred during the installation process. If damaged or frayed wires are found, they should be replaced to maintain the integrity of the power wiring system.
  • Verify Voltage and Frequency: Check the incoming power supply voltage and frequency to ensure they match the specified requirements (e.g., 125 V dc, 115 V ac, 230 V ac). Additionally, verify that the power supply is clean and free from electrical noise that could adversely affect system operation.
  • Verify Jumper Positions: If using ac to dc converters, ensure that the JTX1 or JTX2 jumper positions on the front of the converter are set correctly according to the voltage (115 V ac or 230 V ac) being supplied.
  • Grounding Test: Conduct tests to ensure proper grounding of the 125 V dc system. A qualified person should perform these tests following appropriate safety procedures. Using a 2000-ohm, 10 W resistor in series with a dc ammeter, measure the current from the P125 V dc and N125 V dc terminals. The measured current should fall within the range of 1.7 to 2.0 mA. If the measured current exceeds 2.0 mA, it indicates the presence of additional grounds that need to be removed from the system.
  • Identify Grounding Issues: Test currents of approximately 65 mA usually indicate the presence of one or more hard grounds in the system. Currents in multiples of 1 mA typically suggest the presence of multiple BJS jumpers, which should be addressed accordingly.

Startup Checks

After the installation of the Mark VI control panels, it is essential to perform startup checks to ensure the equipment is operating correctly and safely. Although the panels undergo pre-cabling and factory testing before shipment, final checks should be conducted to address any potential issues that may have arisen during installation. These checks are important as the equipment carries the risk of electrical shock or burns. Here are the steps to follow during startup checks:

  • Ensure Power is Turned Off: Before handling or connecting any conductors to the equipment, take appropriate safety precautions and ensure that all power sources are switched off. This step is crucial for personal safety and prevents electrical hazards during the startup checks.
  • Inspect Control Panel Components: Examine the control panel components for any signs of damage that may have occurred during shipping or installation. Look for physical damage such as dents, scratches, or broken parts. If any damage is detected, it should be reported to GE Product Service for further evaluation and resolution.
  • Check for Loose Cables or Wires: Inspect all cables and wires within the control panel for proper connections. Ensure that all connections are secure and there are no loose or disconnected cables. Loose connections can cause malfunctions or safety hazards, so it is important to address any loose cables or wires promptly.
  • Examine Components and Retainer Clips: Check the various components of the control panel, such as relays or retainer clips, for proper positioning and functionality. Ensure that all components are securely fastened and functioning as intended. If any components are loose or damaged, they should be repaired or replaced before operating the equipment.
  • Report Shipping Damage: If any damage is discovered during the inspection that can be attributed to shipping, it should be promptly reported to GE Product Service. Providing them with accurate details of the damage will assist in resolving any issues and ensuring the equipment's optimal performance.

By following these startup checks, you can verify the integrity of the Mark VI control panels, address any potential issues, and ensure the equipment is ready for safe and reliable operation. It is always important to prioritize safety and report any concerns or damage to the appropriate authorities or service providers for proper resolution.

System Features

The system features of the Mark VIe controller or pack involve the handling of data communication and the convergence of internal data values in a dual control system.

  • Preferred Network Selection: During power-up, the Mark VIe controller or pack listens for data on both networks. The channel that sends the first valid packet is designated as the preferred network. This designation ensures that the pack or controller uses the data arriving on the preferred channel as long as it remains valid.
  • Failover Mechanism: In the event that the preferred channel fails to deliver the data within a frame, the other channel takes over as long as it provides valid data. This failover mechanism prevents a specific I/O pack or controller from constantly switching between two data sources, which could result in instability or unreliable operation.
  • Different Preferred Data Sources: Different I/O packs or controllers within the system may have different preferred data sources. This can occur based on the specific configuration or failure conditions of the system. Each pack or controller determines its preferred data source based on the first valid packet received during power-up.
  • Convergence of Internal Data: In a dual control system, the application software running on each controller attempts to produce the same results. However, due to factors such as mathematical round-off and differences in past history (such as power-up times), internal data values may differ between controllers after many iterations of the application software.
  • Data Convergence Process: To converge the internal data values between controllers, a designated controller's internal data (state) variables are taken and transmitted to the non-designated controller. This allows the non-designated controller to utilize the same internal data values as the designated controller, ensuring consistency and synchronized operation between the controllers.

World of Controls has the most comprehensive collection of GE components. Please contact WOC as soon as possible if you require any extra information.


Frequently Asked Questions


What is IS215ISBBH2A?
It is a splinter communication switch developed by GE

What are the labels on each ethernet port on the back of the component?
Each ethernet port is labeled with its purpose on the back of the component. The labels include Transmit Out (P2), Receive In (P1), and Transmit In (P2) (P3). Full Duplex is also labeled on the ethernet port next to the green adapter (P1).

What is the purpose of the Receiver Active light on the front face of the component?
It indicates whether or not there is a problem with the upstream cable or whether the upstream drop is transmitting. If the light is off, it indicates that there is a problem with the upstream cable or that the upstream drop is not transmitting. If the light is illuminated, it indicates that the upstream drop is transmitting and the cable is in good condition.

What is the purpose of the LED Diagnostic chart on the back of the component?
The Diagnostic chart on the back of the component is a small chart with the words LED Diagnostic that can be used for troubleshooting purposes. It provides information on the meaning of the various LED lights on the component and how to interpret their status.

What level should system troubleshooting be done at?
System troubleshooting should be done at the circuit board level.

What is the consequence of replacing the terminal board or full module?
Replacement of the terminal board or full module requires full re-configuration of the changed component using the ToolboxST application.

Why is it generally preferable to replace only the I/O pack?
It is generally preferable to replace only the I/O pack unless the terminal board is known to be the point of failure because replacement of the terminal board or full module requires full re-configuration of the changed component using the ToolboxST application.