Reachfar - RF-V03-OBD Protocol
This page provides public protocol context for using the Reachfar RF-V03-OBD tracker with Plaspy. It explains how the device communicates at a high level, what Plaspy expects from reporting trackers, and which connection settings are used by Plaspy servers for device reporting. The information here is intended to help fleet managers and integrators understand the role of the tracker protocol without exposing manufacturer internals.
The RF-V03-OBD is a plug-and-play OBDII tracker that connects to a vehicle J1962 port to report GPS, ignition ACC status, basic OBD diagnostics, and alarm events. Plaspy uses shared connection settings across supported devices and automatically detects the tracker protocol. Exact protocol behavior and available telemetry can vary by firmware version, hardware revision, and manufacturer implementation, so validate device behavior against the official Reachfar documentation when needed.
Protocol Overview
At a public, high level the tracker protocol is the method the RF-V03-OBD uses to deliver telemetry and event data to a remote server so that Plaspy can present live maps, alerts, and history. The protocol covers identity and session information, position and movement updates, and event reporting such as ACC changes, geo-fence triggers, and vibration alarms. This page does not document private packet formats or manufacturer specific frames but focuses on the communication role the protocol plays in a Plaspy deployment.
- Enables the tracker to identify itself and establish a reporting session with Plaspy so location and OBD telemetry are associated with the correct vehicle.
- Transports GPS positions, ignition ACC state, OBD diagnostic values where available, and alarm events to the backend for live tracking and playback.
- Provides a reliable path for dead-zone storage synchronization when the tracker regains connectivity and uploads buffered records.
- Supports event driven reporting for alarms and geo-fence triggers so Plaspy can generate timely notifications.
- Allows the device to use different cellular variants for regional coverage while maintaining a consistent reporting target for Plaspy.
How Plaspy Detects the Protocol
Plaspy receives tracker data on a unified endpoint and port and uses automatic detection to determine how incoming connections should be interpreted. When a Reachfar RF-V03-OBD is configured to report to the Plaspy endpoint, the platform will match incoming data to a known device and protocol without requiring the user to manually select a protocol in most cases.
- Plaspy listens for device reports at the public endpoint d.plaspy.com and at the server IP 54.85.159.138 on the shared port 8888.
- All devices in Plaspy use the same port, which simplifies configuration and avoids per-device port differences.
- Plaspy automatically detects the tracker protocol when a properly configured device reports to the endpoint, reducing manual setup steps.
- In typical setups the user configures the device APN and reporting target and the device begins sending telemetry to the Plaspy endpoint.
- If a device does not appear to connect or report, verify the device APN, reporting host, and transport settings before opening a support ticket.
Transport and Connection Context
The RF-V03-OBD can be configured to use either UDP or TCP for reporting depending on the device firmware and variant. Plaspy supports both transport options on the shared port so installers can choose the connection type that matches the tracker capability and network conditions.
- Devices may be configured to report to the domain d.plaspy.com or directly to the server IP 54.85.159.138.
- Plaspy accepts both UDP and TCP connections on port 8888, and many RF-V03-OBD units can be set to use either transport.
- Using UDP can reduce connection overhead in some networks while TCP provides a connection oriented session for devices that require it.
- Because Plaspy uses the same port for all supported devices, configuration usually only requires setting the correct host and transport on the tracker.
- Ensure carrier APN settings and any firewall rules permit outbound traffic to d.plaspy.com on port 8888 from vehicle modems.
Protocol Compatibility Notes
- Firmware revisions can change which telemetry fields are reported and how often reports are sent; always compare behavior against the device firmware release notes.
- Hardware variants and cellular categories such as CAT1, CAT4, and CAT-M1/NB2 may influence regional connectivity and feature availability.
- Voice monitoring, BLE sensor support, and certain diagnostics options may only be present on specific RF-V03-OBD variants; confirm feature availability for your model.
- Transport selection (UDP vs TCP) may be limited by device firmware or carrier network behavior; choose the transport that your variant recommends.
- Manufacturer settings such as default APN or report intervals can differ between batches; validate these values during deployment testing.
- Validate critical integrations by performing live tests for alerts, ACC detection, and dead-zone synchronization before rolling out at scale.
Why Protocol Understanding Matters
Understanding the tracker protocol helps ensure successful device onboarding, accurate telemetry interpretation, and effective troubleshooting when devices are not reporting as expected. A practical grasp of the communication model reduces deployment friction and supports long term fleet reliability.
- Confirms the device is pointed at the correct Plaspy endpoint and transport so data appears in the right account.
- Helps interpret why certain telemetry items may be missing due to firmware limits or variant feature sets.
- Simplifies troubleshooting by narrowing checks to APN, host, transport, and device firmware when reporting fails.
- Supports operational planning around dead-zone storage and upload behavior for areas with intermittent cellular coverage.
- Informs decisions about firmware updates and variant selection when specific telematics capabilities are required.
Why Use Plaspy with This Protocol
Using the Reachfar RF-V03-OBD with Plaspy gives organizations a quick way to add OBDII based telemetry to an existing fleet management workflow. The plug-and-play nature of the RF-V03-OBD combined with Plaspy centralized reporting enables rapid deployment, live monitoring of location and ignition state, and historical playback for recovery and analytics. For operators who need non-invasive installation and straightforward reporting, this combination supports routine fleet operations, theft response, and driver behavior monitoring.
To learn more about Plaspy and how it handles device reporting and fleet features visit https://www.plaspy.com. For the latest device specific protocol details, firmware notes, and variant documentation verify information with the manufacturer at https://www.reachfargps.com/ since protocol support and firmware behavior can change over time.
Tracker Communication
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