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Coban - BN-401D Protocol

This page provides public protocol context for using the Coban BN-401D GPS tracker with Plaspy. It summarizes how the device communicates at a high level, which transport options are commonly used, and what to check when integrating the BN-401D into centralized tracking and fleet workflows on Plaspy. It is intended to help technicians and fleet administrators understand the communication role of the tracker without exposing proprietary implementation details.

Plaspy uses shared connection settings across supported devices and automatically detects the tracker protocol, while exact protocol behavior can vary depending on firmware, hardware revision, and manufacturer implementation. Plaspy server domain is d.plaspy.com and Plaspy server IP is 54.85.159.138. The port is 8888 and the device may be configured using UDP or TCP on port 8888. All devices in Plaspy use the same port and Plaspy automatically detects the tracker protocol when the unit is configured to report to the Plaspy endpoint.

Protocol Overview​

The communication protocol for the BN-401D defines how the unit reports location, alarms, and device state back to a remote server and how remote configuration or control commands are delivered. In a Plaspy integration this protocol enables the platform to receive usable telemetry and events for display, alerts, and automated workflows.

  • Enables periodic and event driven position updates so Plaspy can show live location and playback historical tracks
  • Conveys alarm events such as SOS, shock, overspeed, and external power loss so Plaspy can trigger alerts
  • Reports device state including ignition status and battery information for monitoring and power alerts
  • Supports remote commands and configuration delivery through the transport layers supported by the device
  • Allows the tracker to identify itself and associate messages with a device record in Plaspy

How Plaspy Detects the Protocol​

Plaspy accepts incoming connections at a shared endpoint and automatically determines the tracker protocol based on the incoming device messages and connection context. This means most BN-401D units only need to be pointed to the Plaspy endpoint to be recognized without manual protocol selection inside the platform.

  • Plaspy server domain is d.plaspy.com which devices can be configured to report to
  • Plaspy server IP is 54.85.159.138 to allow devices that require an IP destination
  • The port is 8888 and all devices in Plaspy use the same port for simplicity
  • Plaspy automatically detects the tracker protocol so explicit protocol choice in the platform is typically unnecessary
  • If a device is properly reporting to the Plaspy endpoint, the platform will match incoming data to a device profile and begin ingesting telemetry

Transport and Connection Context​

Connection transport and server settings determine how the BN-401D sends data to Plaspy and how remote configuration is delivered. The BN-401D supports multiple transport options and may be configured to use either UDP or TCP for reporting to Plaspy.

  • The device may be configured using UDP or TCP on port 8888 depending on device support and chosen configuration
  • Devices may point to d.plaspy.com or 54.85.159.138 as the Plaspy destination
  • The port is 8888 for all Plaspy supported devices which simplifies firewall and network setup
  • Some installations use SMS or alternate channels for initial configuration but active telemetry is typically sent over IP transport
  • Verify network policies and APN settings so the tracker can reach the Plaspy endpoint reliably over cellular networks

Protocol Compatibility Notes​

  • Firmware versions may change message timing, available alarms, and configuration command sets; confirm firmware specifics when troubleshooting
  • Hardware revisions or variant models can introduce slight differences in reported fields and available remote functions
  • Transport selection TCP or UDP can affect delivery behavior and should match how the device has been configured by the installer
  • Manufacturer default settings may require APN and server destination updates to point to Plaspy
  • Always validate device identity mapping in Plaspy after first reports to ensure telemetry attaches to the correct asset
  • Consult manufacturer documentation for features that depend on optional accessories such as relays or external sensors

Why Protocol Understanding Matters​

Understanding the BN-401D communication protocol at a practical level helps ensure reliable device onboarding and long term operation with Plaspy. Awareness of how the tracker reports and what events it sends reduces setup time and simplifies troubleshooting.

  • Faster onboarding when you confirm APN server and transport settings match Plaspy requirements
  • More effective troubleshooting when you understand common causes of missed reports such as transport mismatch or firmware behavior
  • Better alarm configuration and interpretation because you know which device events will be reported to Plaspy
  • Improved network planning and firewall rules since Plaspy uses a single well known port for all devices
  • Clear expectations for remote control features that depend on device firmware and variant model support

Why Use Plaspy with This Protocol​

Pairing the Coban BN-401D with Plaspy provides a straightforward path to centralized motorcycle and small vehicle tracking, theft protection, and operational monitoring. The BN-401D brings ignition aware reporting, alarms, and remote immobilization features that map well to Plaspy dashboards, alerts, and playback tools for both single vehicle owners and fleet operators.

To learn more about Plaspy and how it integrates with devices like the BN-401D, visit https://www.plaspy.com. For the most current device specific protocol details, firmware notes, and implementation guidance consult the manufacturer documentation at https://www.coban.net/ since protocol support and firmware behavior can change over time.

Tracker Communication

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