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IO Modules - Network - Performance in iSMA-B-MIXxx-IP daisy chain configurations

Introduction

When configuring iSMA-B-MIXxx-IP units in an IP daisy chain setup, understanding the limitations regarding the maximum distance and the number of devices connected is crucial for maintaining network stability and performance. Proper planning can prevent data loss and ensure system reliability.

Good Practice

To achieve the best performance and reliability in an IP daisy chain configuration, follow these recommended practices:

  1. Maintain Optimal Cable Lengths:

    • Ensure that the cable length between any two devices does not exceed 100 meters. This is the maximum safe distance to maintain signal integrity without the need for repeaters.

    • Use high-quality, standard-compliant cables to reduce the risk of transmission errors and enhance overall network robustness.

  2. Limit the Number of Devices:

    • While it is possible to connect several dozen MIX devices in a daisy chain, be mindful that adding more devices can increase the ping time, particularly for the unit at the end of the chain.

    • Consider the total data load and the impact on the network's first cable, which carries data for all connected devices. This can lead to higher load and slower transmission speeds.

  3. Plan for Redundancy and Fail-Safe Measures:

    • Be aware that if any device in the chain loses power, all subsequent devices in the network will also lose connectivity. This is due to the non-functional state of switches in MIX units during power outages.

    • Implement redundancy where possible, such as using additional power sources or installing fail-safe mechanisms to prevent a single point of failure from affecting the entire network.

  4. Regular Network Testing and Monitoring:

    • Regularly test network performance from the first to the last device in the chain to ensure that the increasing distance and number of devices do not degrade the network's performance.

    • Monitor the network load, especially on cables at the beginning of the daisy chain, to prevent bandwidth saturation and ensure efficient data flow.

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