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Coban - BN-401B Protocol

This page provides a public, high level description of how the Coban BN-401B communicates with Plaspy. It focuses on the communication context and practical protocol considerations needed to integrate a BN-401B with Plaspy for live location, alarms, and telemetry without exposing proprietary implementation details.

The BN-401B is a compact 4G GPS tracker designed for motorcycles and small vehicles with support for TCP, UDP and SMS reporting plus Bluetooth configuration. Plaspy uses shared connection settings across supported devices and automatically detects the tracker protocol. Exact protocol behavior and available commands can vary with firmware version, hardware revision and manufacturer configuration, so always validate device-specific details against manufacturer documentation when necessary.

Protocol Overview​

The tracker reporting protocol defines how the BN-401B formats and sends location, status and alarm messages to a remote server and how that data is used by a platform such as Plaspy. In practical terms the protocol enables the device to identify itself, deliver timely GPS positions, and report alarm or telemetry events that Plaspy consumes for monitoring and workflows.

  • Enables delivery of GNSS position, movement and alarm events from the device to a remote endpoint.
  • Carries device identity and status so Plaspy can associate incoming messages with the correct asset record.
  • Supports multiple transport options including TCP, UDP and SMS so devices can report under different network conditions.
  • Works with local Bluetooth configuration to simplify commissioning and parameter changes without altering message semantics.
  • Allows Plaspy to trigger responses such as notifications, immobilization workflows and historical track playback using the reported telemetry.

How Plaspy Detects the Protocol​

Plaspy receives incoming messages from devices on a shared endpoint and port and automatically determines the appropriate handling for supported tracker messages. When a BN-401B is configured to report to Plaspy it is generally not necessary to select a specific protocol inside the platform, provided the device is pointed to the Plaspy address and uses an expected transport.

  • Plaspy server endpoint is d.plaspy.com and the server IP address is 54.85.159.138.
  • Plaspy listens on port 8888 and all devices in Plaspy use the same port for reporting.
  • Devices may be configured to use UDP or TCP transport on port 8888 to send data to Plaspy.
  • Plaspy automatically detects the tracker protocol for supported devices once messages arrive at the platform.
  • Users typically only need to ensure the BN-401B is configured to report to the Plaspy endpoint and use the correct transport method.

Transport and Connection Context​

Connection and transport choices influence reliability and delivery characteristics for BN-401B messages. The device supports common transport methods and local configuration options that affect how it reaches Plaspy, but the higher level message semantics remain the key factor for compatibility.

  • The BN-401B can use TCP or UDP on port 8888 to report directly to Plaspy.
  • Devices may be set to point to the domain d.plaspy.com or directly to the IP 54.85.159.138.
  • Plaspy uses the same port 8888 for all supported devices to simplify configuration and server routing.
  • SMS can act as an alternative reporting or management channel where cellular data is unavailable.
  • Bluetooth configuration is available for local setup and parameter changes without opening data sessions.

Protocol Compatibility Notes​

  • Firmware revisions may change message details or introduce new features; confirm behavior for the installed firmware.
  • Hardware revisions and regional variants can affect available bands, transport defaults and configuration options.
  • Transport selection between TCP and UDP can impact delivery guarantees and should match device settings and network characteristics.
  • SMS reporting and Bluetooth configuration provide fallback or local setup paths but may not carry identical telemetry content.
  • Always validate compatibility and recommended configuration against the official Coban documentation for your unit and firmware.
  • Ensure the device is pointed to the correct Plaspy endpoint and uses port 8888 to allow automatic detection by Plaspy.

Why Protocol Understanding Matters​

A clear grasp of the BN-401B communication context helps ensure predictable setup, faster troubleshooting and reliable operation when the device is managed through Plaspy. Understanding the roles of transport, firmware and configuration reduces integration time and supports consistent monitoring outcomes.

  • Helps verify device is reporting to d.plaspy.com or 54.85.159.138 on port 8888 so Plaspy can receive and process messages.
  • Makes it easier to troubleshoot connectivity issues by narrowing scope to transport, SIM/network or device settings.
  • Supports correct use of TCP versus UDP based on network behavior and operational priorities.
  • Clarifies how alarm and telemetry events translate into Plaspy workflows like Geo-fence alerts and immobilization.
  • Encourages periodic firmware and configuration reviews to maintain long term compatibility and feature availability.

Why Use Plaspy with This Protocol​

The BN-401B provides focused anti-theft and real-time tracking features suited to motorcycles and small vehicles. When configured to report to Plaspy, its 4G connectivity, alarm suite and remote immobilization capabilities integrate into Plaspy workflows for live monitoring, alerts and historical analysis. This combination gives fleet managers and vehicle owners concise, actionable visibility into location and event data without complex setup.

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

Tracker Communication

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