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Coban - GPS109 Protocol

This page provides a public protocol overview for using the Coban GPS109 tracker with Plaspy. It explains the general communication context that lets the GPS109 report location, status, and alarms to a fleet platform. The description draws on the GPS109 device characteristics including GSM GPRS connectivity, high sensitivity GPS, long battery life, and IP67 enclosure to frame how the device typically communicates in service.

Plaspy uses shared connection settings across supported devices and automatically detects the tracker protocol when devices are pointed to the Plaspy endpoint. Exact protocol behavior can vary with firmware version, hardware revision, network conditions, and manufacturer implementation, so the information here is intended as a high level guide for integration and troubleshooting rather than a firmware specific reference.

Protocol Overview​

The protocol used by the GPS109 is the mechanism by which the device reports GPS fixes, status messages, alarms, and configuration responses to a server. For integration with Plaspy, the protocol determines how the tracker identifies itself, how telemetry is packaged for transport over the cellular link, and which messages are considered actionable by the platform.

  • Provides a way for the tracker to report location fixes and movement status to a remote server
  • Carries alarm and status events such as low battery, overspeed, geo fence, and shock notifications
  • Allows identification or authentication information so the server can associate reports with a specific device
  • Enables remote configuration when the tracker supports GPRS configuration or SMS command modes
  • Supplies periodic telemetry for fleet visibility and historical location logging

How Plaspy Detects the Protocol​

Plaspy accepts device connections at the shared endpoint and automatically determines the tracker protocol from incoming traffic and device identifiers. In most cases a properly configured GPS109 that reports to the Plaspy endpoint will be handled without manual protocol selection by the user.

  • Plaspy server endpoint is reachable at d.plaspy.com and at IP 54.85.159.138
  • Plaspy listens on port 8888 for device reports and uses the same port for all supported devices
  • Devices pointed to the Plaspy endpoint are automatically detected and associated with the correct handling logic
  • Users normally do not need to pick a protocol inside Plaspy if the device reports correctly to d.plaspy.com on the configured port
  • Detection covers common differences between trackers but does not replace checking device firmware specifics

Transport and Connection Context​

Connection transport and addressing are important for getting the GPS109 to successfully report to Plaspy. The GPS109 can operate over the GSM GPRS network and may be configured to use either UDP or TCP transport depending on device settings and server requirements.

  • The device may be configured to use UDP or TCP on port 8888 when reporting to the server
  • Plaspy accepts connections on port 8888 for all devices, simplifying network configuration
  • Devices may be configured to send reports to the domain d.plaspy.com or to the numeric address 54.85.159.138
  • Selecting UDP or TCP on the device should match network and carrier characteristics for reliable delivery
  • Firewalls and APN settings must allow outbound connections from the tracker to the Plaspy endpoint

Protocol Compatibility Notes​

  • Firmware versions and hardware revisions may implement protocol features differently; verify behavior against the device firmware you have in hand
  • Some GPS109 units offer both SMS and GPRS configuration modes; choose the transport that matches your operational requirements
  • Manufacturer settings such as server address, port, and transport must be set on the device to point to Plaspy for automatic handling
  • Plaspy automatically detects tracker protocols but accurate reporting depends on correct device configuration and current firmware behavior
  • Network conditions and SIM/APN settings can affect whether UDP or TCP is more reliable for a given deployment
  • Always validate device behavior in a controlled test before broad deployment

Why Protocol Understanding Matters​

Understanding the communication protocol for the GPS109 helps ensure devices are configured correctly, that expected events reach Plaspy, and that troubleshooting is efficient when problems occur. Awareness of how the tracker reports data and how Plaspy receives it reduces integration time and improves long term reliability.

  • Helps verify that the device is pointing to the Plaspy endpoint and using the correct transport
  • Makes it easier to diagnose missing position reports or alarms by checking device and network settings
  • Informs decisions about using UDP versus TCP based on coverage, packet loss, and delivery guarantees
  • Enables predictable handling of telemetry, battery alerts, and geofence events by the platform
  • Reduces time to resolution for deployment issues by aligning device configuration with platform expectations

Why Use Plaspy with This Protocol​

Using the Coban GPS109 with Plaspy provides a practical way for organizations to gain location visibility, monitor vehicle and asset status, and receive alarm notifications in a unified platform. Plaspy’s ability to accept connections at d.plaspy.com (54.85.159.138) on a single shared port simplifies device configuration and reduces the number of network changes required when managing many units.

To learn more about Plaspy and how it works with common trackers such as the Coban GPS109 visit https://www.plaspy.com. For the most current device specific protocol details, firmware notes, and configuration instructions consult the manufacturer documentation at https://www.coban.net/ .

Tracker Communication

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